Eric John Hewitt
Bibliography
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Eric John Hewitt—Bibliography
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Hewitt, E. J. Marsh spot in beans. Nature 155, 22-23.
Wallace, T., Hewitt, E.J. & Nicholas, D.J.D. Determination of factors injurious to plants in acid soils.
Nature 156, 778-779.
Wallace, T. & Hewitt, E.J. Studies in iron deficiency of crops: I. Problems of iron deficiency and the
interrelationships of mineral elements in iron nutrition. J. Pom. Hort. Sci., 22, 153-161.
Hewitt, E.J. Use of water purified by synthetic resin ion-exchange methods for the study of mineral
deficiencies in plants. Nature, 158, 623.
Hewitt, E.J. & Jones, E.W. The production of molybdenum deficiency in plants in sand culture with
special reference to tomato and brassica crops. J. Pom. Hort. Sci. 23, 254-262.
Wallace, T. & Hewitt E.J. Effects of calcium deficiency on potato sets in acid soils. Nature 160, 28.
Hewitt, E.J. Relation of manganese and some other metals in the iron status of crops. Nature 161,
489-490.
Quastel, J.H., Hewitt, E.J. & Nicholas, D.J.D. The control of manganese deficiency in soils: the
effects of sulphur and thiosulphate on crops growing in manganese deficient soils. J. Agric. Sci. 38,
315-322.
Keyworth, W.G. & Hewitt, E.J. Verticillium wilt of the hop: 5. The influence of nutrition on the
reaction of the host plant to infection with Verticillium albo-atrum. J. Hort. Sci. 24, 219-227.
Hewitt, E.J., Jones, E.W. & Williams, A.H. The relation of molybdenum and manganese to the free
amino acid content of the cauliflower. Nature 163, 681-682.
Hewitt, E.J. The relation of manganese and other metal toxicities to the iron status of plants. Brit. Sci.
News 2, 116-119.
Hewitt, E.J., Agarwala, S.C. & Jones E.W. Effect of molybedenum status on the ascorbic acid content
of plants in sand culture. Nature 166, 1119-1120.
Hewitt, E.J. & Hallas, D.G. The use of Aspergillus niger (Van Tiegh) M. strain as a test organism in
the study of molybdenum as a plant nutrient. Plant Soil, 3, 366-408.
Hewitt, E.J. & Agarwala S.C. Production of Whiptail in cauliflower grown in sand culture. Nature
167, 733.
Hewitt, E.J. The role of the mineral elements in plant nutrition. Ann. Rev. Plant Physiol. 2, 25-52.
Hewitt, E.J. Sand and Water Culture Methods used in the Study of Plant Nutrition. Tech. Comm. No.
22 of the Commonwealth Bureau of Horticulture and Plantation Crops, East Malling, Maidstone,
Kent. First Edn. pp. 241. Farnham Royal : Commonwealth Agric. Bureaux...
Hewitt, E.J. A biological approach to the problems of soil acidity. International Soil Science Society
Commissions I and II, trans. 1, 107-118.
Hewitt, E.J. The use of sand cultures for the study of mineral disorders, especially micronutrient
deficiencies. International Soil Science Society Commissions I and II, trans. 2, 240-242.
Hewitt, E.J. & Bolle-Jones, E.W. Molybdenum as a plant nutrient: I. The influence of molybdenum
on the growth of some brassica crops in sand culture. J.Hort. Sci. 27, 245-256.
Hewitt, E.J. & Bolle-Jones, E.W. Molybdenum as a plant nutrient: II. The effects of molybdenum
deficiency on some horticultural and agricultural crop plants in sand culture. J. Hort. Sci. 27, 257265.
Hewitt, E.J. & Agarwala, S.C. Reduction of triphenyltetrazolium chloride by plant tissues in relation
to molybdenum status. Nature 169, 545-546.
Hewitt, E.J. The importance of molybdenum in the nutrition of horticultural crops. 13th International
Horticultural Congress, London, Proc. I, 375-385.
Hewitt, E.J. The use of sand culture methods for investigations on plant nutrition. In Science and
Fruit, (Eds.T. Wallace. & R. W. Marsh), pp.171-183. Bristol: University of Bristol Press.
Hewitt, E.J. & Bolle-Jones, E.W. Studies in iron deficiency of crops: II. The interrelationships of iron
and potassium in the nutrition of the potato. J. Hort. Sci. 28, 185-195.
Hewitt, E.J. Metal interrelationships in plant nutrition: 1. Effects of some metal toxicities on sugar
beet, tomato, oat, potato and marrowstem kale grown in sand culture. J. Exp. Bot. 4, 59-64.
Hewitt, E.J. Metal interrelationships in plant nutrition: 2. The relation of metal toxicity, molybdenum
and nitrogen source to chlorophyll and magnesium content of beet in sand culture. J. Exp. Bot. 5, 110118.
Hewitt, E.J., Bolle-Jones, E.W. & Miles, P. The production of copper, zinc and molybdenum
deficiencies in crop plants grown in sand culture with special reference to some effects of water
supply and seed reserves. Plant Soil 5, 205-222.
Hewitt, E.J. Modern methods of determining the mineral nutrient requirements of plants with special
reference to the micronutrient elements. VIII International Botanical Congress, Paris, 1954. Sect.
11(4) Premier Rapport, 61-68.
Agarwala, S.C. & Hewitt, E.J. Molybdenum as a plant nutrient: III. The interrelationships of
molybdenum and nitrogen supply in the growth and molybdenum content of cauliflower plants grown
in sand cultures. J. Hort. Sci. 29, 278-290.
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Agarwala, S.C. & Hewitt, E.J. Molybdenum as a plant nutrient: IV. The interrelationships of
molybdenum and nitrate supply in chlorophyll and ascorbic acid fractions in cauliflower plants grown
in sand cultures. J. Hort. Sci. 29, 291-300.
Ducet, G. & Hewitt, E.J. The relation of molybdenum status and nitrogen supply to respiration in
cauliflower leaves. Nature 173, 1141- 1143.
Hewitt, E.J. & McCready, C.C. The relation of nitrogen supply to the molybdenum requirement of
tomato plants grown in sand cultures. Nature 174, 186-187.
Hewitt, E.J. & Miles, P. The effects of deficiencies and excesses of some mineral nutrients on the
growth of tulip and daffodil bulbs in sand culture. J. Hort. Sci. 29, 237-244.
Hewitt, E.J. Evidence regarding the role of molybdenum in plant nutrition as revealed under different
conditions of nitrogen supply. VIII International Botanical Congress, Paris, 1954, Sect. II, 108-111.
Agarwala, S.C. & Hewitt, E.J. Molybdenum as a plant nutrient: V. The interrelationships of
molybdenum and nitrogen supply in the concentration of sugars, nitrate and organic nitrogen in
cauliflower plants grown in sand culture. J. Hort. Sci. 30, 151-162.
Agarwala, S.C. & Hewitt, E.J. Molybdenum as a plant nutrient: VI. Effects of molybdenum supply on
the growth and composition of cauliflower plants given different sources of nitrogen supply in sand
cultures. J. Hort. Sci. 30, 163-180.
Hewitt, E.J. & McCready, C.C. Molybdenum as a plant nutrient: VII. The effects of different
molybdenum and nitrogen supplies on yields and composition of tomato plants grown in sand culture.
J. Hort. Sci.. 31, 284-290.
Hewitt, E.J. Symptoms of molybdenum deficiency in plants. Soil Sci. 81, 159-171.
Candela, M.I., Hewitt, E.J. & Stevens, H.M. The separation and estimation of hexa- and pentavalent
molybdenum by paper chromatography. Analyt. Chim. Acta 14, 66-69.
Hewitt, E.J. Some aspects of the relationships of nutrient supply to nutrient uptake and growth of
plants as revealed from nutrient culture experiments. VI International Congress Soil Science
Colloque, Paris, (I.R.H.O.) pp. 104-108.
Hewitt, E.J. & Bull, R.A. A preliminary survey of deficiency symptoms in crop plants in the oil palm
belt of Nigeria. J. West Afr. Inst. Oil Palm Res. 1, 83-105.
Hewitt, E.J. Some aspects of micronutrient element metabolism in plants. Nature 180, 1020-1022.
Hewitt, E.J., Agarwala, S.C. & Williams, A.H. Molybdenum as a plant nutrient: VIII. The effect of
different molybdenum levels and nitrogen supplies on the nitrogen fractions in cauliflower plants
grown in sand culture. J. Hort. Sci. 32, 34-48.
Candela, M.I. & Hewitt, E.J. Molybdenum as a plant nutrient: IX. The effects of different
molybdenum and manganese supplies on yield and on the uptake and distribution of molybdenum in
tomato plants grown in sand culture. J. Hort. Sci. 32, 149-161.
Candela, M.I., Fisher, E.G. & Hewitt, E.J. Molybdenum as a plant nutrient: X. Some factors effecting
the activity of nitrate reductase in cauliflower plants grown with different nitrogen sources and
molybdenum levels in sand culture. Pl. Physiol. 32, 280-288.
Hewitt, E.J. Aspects of molybdenum as an essential nutrient for higher plants. J. Sci. Food Agric. 8,
Supp., 6-14.
Hewitt, E.J. The role of the mineral elements in the activity of plant enzyme systems. In
Encyclopaedia of Plant Physiology, Vol. 4 (Ed. W. Ruhland), pp. 427-481. Berlin, Gottingen,
Heidelberg: Springer.
Hewitt, E.J. & Afridi, M.M.R.K. Adaptive synthesis of nitrate reductase in higher plants. Nature 183,
57-58.
Hewitt, E.J. & Hallas, D.G. Measurement of inhibition by azide in biochemical assay systems
involving nitrate estimation by diazotisation. Nature 184, 1485.
Bar-Akiva, A. & Hewitt, E.J. The effects of tri-iodobenzoic acid and urea on the response of chlorotic
lemon (Citrus limonia) to foliar application of iron compounds. Pl. Physiol. 34, 641-642.
Hewitt, E.J. Some aspects of mineral nutrition in Legumes, In Nutrition of the Legumes, (Ed. E.G.
Hallsworth), pp.15-41 London: Butterworth.
Hewitt, E.J. The metabolism of micronutrient elements in plants. Biol. Rev. 34, 333-397.
Hewitt, E.J. & Tatham, P. Interaction of mineral deficiency and nitrogen source on acid phosphatase
activity in leaf extracts. J. Exp. Bot. 11, 367-376.
Cresswell, C.F. & Hewitt, E.J. Oxidation of hydroxylamine by plant enzyme systems. Biochem.
Biophys. Res. Comm. 3, 544-548.
Hewitt, E.J. & Notton, B.A. The estimation and distribution of some phosphorus fractions in leaves of
plants. J. Sci Food Agric. 11, 653-658.
Hewitt, E.J. & Dickes, G.J. Spectrophotometric measurements on ascorbic acid and their use for the
estimation of ascorbic and dehydroascorbic acids in plant tissues. Biochem. J. 78, 384-391.
Hewitt, E.J. & Bond, G. Molybdenum and the fixation of nitrogen in Casuarina and Alnus root
nodules. Plant Soil 14, 159-175.
Bond, G. & Hewitt, E.J. Molybdenum and the fixation of nitrogen in Myrica root nodules. Nature
190, 1033-34.
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Hewitt, E.J. & Wilson, L.A. Determination of cell numbers in leaf primordia. Nature 192, 578.
Cheal, W.F. & Hewitt, E.J. Effects of major nutrients on two varieties of tulip grown in sand culture.
J. Hort. Sci. 37, 134-140.
Bond, G. & Hewitt, E.J. Cobalt and the fixation of nitrogen by root nodules of Alnus. Nature 195, 9495.
Afridi, M.M.R.K. & Hewitt, E.J. Induction and stability of nitrate reductase in tissues of higher
plants. Life Sciences 1, 287-295.
Hageman, R.H., Cresswell, C.F. & Hewitt, E.J. Reduction of nitrate, nitrite and hydroxylamine to
ammonia by enzymes extracted from higher plants. Nature 193, 247-250.
Cresswell, C.F., Hageman, R.G. & Hewitt, E.J. The reduction of nitrite and hydroxylamine to
ammonia by enzymes of vegetable marrow (Cucurbita pepo). Biochem. J. 83, 38-39P.
Hewitt, E.J. Mineral nutrition of plants in culture media. In Plant Physiology 3, (Ed. F.C. Steward),
pp. 97-134. New York and London: Academic Press.
Hewitt, E.J. Effects of mineral elements, deficiencies, toxicities and interrelationships on the growth
of plants. In Plant Physiology 3,. (Ed. F.C. Steward), pp.137-361. New York and London: Academic
Press.
Hewitt, E.J. & Betts, G.F. The reduction of nitrite and hydroxylamine by ferredoxin and chloroplast
grana from Cucurbita pepo. Biochem. J. 89, 20P.
Glascock, R.C. & Hewitt, E.J. The uptake of hexoestrol by roots of plants and its retention when
applied to the foliage as a spray. Ann, Appl.Biol. 52, 163-174.
Hewitt, E.J. & Nicholas, D.J.C. Cationic and anionic inhibitors. In Metabolic Inhibitors, 1, (Eds. J.H.
Quastel & R. Hochster). pp.311-436. New York and London: Academic Press.
Cheal, W.F. & Hewitt, E.J. Effects of mineral nutrition on the production of tulip bulbs. Ann.
Appl.Biol. 52, 493-502.
Cheal, W.F. & Hewitt, E.J. The effect of rates of supply of nitrogen, phosphorus, potassium and
magnesium on leaf and stem growth, flowering and “topple” of Golden Harvest and Elmus tulip. Ann.
Appl. Biol. 53, 477-484.
Hewitt, E.J. & Nicholson, D.J.D. Enzymes of inorganic nitrogen metabolism, In Modern Methods of
Plant Analysis, 7, (Eds. H.F. Linskens,.B.D. Sanwal & M.V. Tracey), pp. 67-122. Berlin, Gottingen,
Heidelberg: Springer.
Afridi, M.M.R.K. & Hewitt, E.J. The inducible formation of nitrate reductase in higher plants: I.
Effects of nitrate and molybdenum on enzyme activity in cauliflower (Brassica oleracea var.
Botrytis). J. Exp. Bot. 15, 251-271.
Afridi, M.M.R.K. & Hewitt, E.J. The inducible formation of nitrate reductase in higher plants: II.
Effects of environmental factors, antimetabolites and amino acids on induction. J. Exp. Bot. 16, 628645.
Cresswell, C.F., Hageman, R.H., Hewitt, E.J. & Hucklesby, D.P. The reduction of nitrate, nitrite and
hydroxylamine to ammonia by enzymes from Cucurbita pepo (L) in the presence of reduced benzyl
viologen as electron donor. Biochem. J. 94, 40-53.
Hewitt, E.J., James, D.M. & Lloyd-Jones, C.P. A comparison of methods for removal of cobalt and
vanadium from nutrient reagents as revealed by studies with radioactive isotopes. Pl. Physiol. 40,
326-331.
Hewitt, E.J. Sand and Water Culture Methods used in the Study of Plant Nutrition. Tech. Comm. No.
22 of the Commonwealth Bureau of Horticulture and Plantation Crops, East Malling, Maidstone,
Kent. Second Edn. pp. 547. Farnham Royal: Commonwealth Agric. Bureaux..
Hewitt, E.J. Theoretical and experimental aspects of the study of mineral nutrition in plants with
special reference to the requirements for trace or micronutrient elements. Montes, 21, 67-76 (in
Spanish).
Hewitt, E.J. & Bond, G. The cobalt requirements of non-legume root nodule plants. J. Exp. Bot. 17,
480-491.
Betts, G.F. & Hewitt, E.J. Photosynthetic nitrite reductase and the significance of hydroxylamine in
nitrite reduction in plants. Nature 210, 1327-1329.
Hewitt, E.J., Hucklesby, D.P. & Betts, G.F. Resolution of nitrite and hydroxylamine reductase
activities from plants. Biochem. J. 100, 54-55P.
Hewitt, E.J. & Notton, B.A. Effect of substituted uracil derivatives on induction of nitrate reductase in
plants. Biochem. J. 101, 39-40c.
Hewitt, E.J. A physiological approach to the study of forest tree nutrition. In Physiology in Forestry,
(Ed. R.W.V. Palmer) Forestry Supplement pp.49-59. Oxford: University Press.
Hewitt, E.J. & Notton, B.A. Inhibition by L-azetidine-2-carboxylic acid of induction of nitrate
reductase in plants and its reversal by L-proline. Phytochem. 6, 1329-1335.
Hewitt, E.J. & Hucklesby, D.P. Molecular exclusion chromatography of nitrite and hydroxylamine
reductases in plants with reference to electron donor systems. Biochem. Biophys. Res. Comm. 25, 689693.
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Hewitt, E.J., Notton, B.A. & Afridi, M.M.R.K. Comparative effects of some antimetabolites on ribonucleic acid synthesis and induction of nitrate reductase. Pl. Cell Physiol. 8, 385-397.
Bond, G. & Hewitt, E.J. The significance of copper for nitrogen fixation in nodulated Alnus and
Casuarina plants. Plant Soil 27, 447-449.
Hewitt, E.J. & Cutting, C.V. (Eds.) . Recent Aspects of Nitrogen Metabolism in Plants. (Proc. 1st Long
Ashton Symposium, April 1967), 278 pp. London and New York: Academic Press.
Hewitt, E.J., Hucklesby, D.P. & Betts, G.F. Nitrite and hydroxylamine in inorganic nitrogen
metabolism with reference principally to higher plants.. In Recent Aspects of Nitrogen Metabolism in
Plants. (Eds. E.J. Hewitt & C.V. Cutting), pp. 47-81. London: Academic Press.
Hucklesby, D.P., Hewitt, E.J. & James, D.M. Possible active sites in nitrite reductase and
hydroxylamine reductase from vegetable marrow (Cucurbita pepo L.). Biochem. J. 117, 30P.
Hewitt, E.J. & Gundry, C.S. The molybdenum requirement of plants in relation to nitrogen supply. J.
Hort. Sci. 45, 351-358.
Hucklesby, D.P. & Hewitt, E.J. Nitrite and hydroxylamine reduction in higher plants: fractionation,
electron donor and substrate specificity of leaf enzymes principally from vegetable marrow
(Cucurbita pepo L.). Biochem. J. 119, 615-627.
Hewitt, E.J. Physiological and biochemical factors which control the assimilation of inorganic
nitrogen supplies by plants. In The Nitrogen Nutrition of the Plant, (Ed. E.A. Kirkby), pp.78-103.
Leeds: Waverley Press.
Eaglesham, A.R.J. & Hewitt, E.J. Kinetics and inhibition by adenosine phosphates and nitrite of
nitrate reductase from Spinacea oleracea L. Biochem. J. 122, 18-19P.
Scawen, M.D. & Hewitt, E.J. Plastocyanin from Cucurbita pepo L. Biochem. J. 123, 32P.
Notton, B.A. & Hewitt, E.J. Incorporation of radioactive molybdenum into protein during nitrate
reductase formation and effect of molybdenum on nitrate reductase and diaphorase activities of
spinach (Spinacea oleracea L.). Pl. Cell Physiol.. 12, 465-477.
Eaglesham, A.R.J. & Hewitt, E.J. The regulation of nitrate reductase activity from spinach (Spinacea
oleracea L.) leaves by thiol compounds in the presence of adenosine-5’-diphosphate. F.E.B.S. Letts.
16, 315-318.
Notton, B.A. & Hewitt, E.J. The role of tungsten in the inhibition of nitrate reductase activity in
spinach (Spinacea oleracea L.) leaves. Biochem. Biophys. Res. Comm. 44, 702-710.
Ahmad Rafiq & Hewitt, E.J. Studies on the growth and phosphatase activities in Suaeda fructicosa.
Plant Soil 34, 691-696.
Notton, B.A. & Hewitt, E.J. Reversible cyanide inhibition of spinach (Spinacea oleracea L.) nitrate
reductase and non-exchangeability in vitro of protein bound molybdenum and tungsten. F.E.B.S.
Letts. 18, 19-22.
Hewitt, E.J. Trace elements in plants: biochemical aspects. In Trace Elements in Soils and Crops,
pp.21-33. Technical Bulletin No. 21, London : HMSO. (Proc. NAAS Open Conference October
1966).
Notton, B.A., Hewitt, E.J. & Fielding, A.H. Isoelectric focussing of spinach nitrate reductase and its
tungsten analogue. Phytochem. 11, 2447-2449.
Notton, B.A. & Hewitt, E.J. Comparative aspects of incorporation of vanadium, tungsten or
molybdenum into protein of nitrate reductase of Spinacea oleracea L. leaves. Biochim. Biophys. Acta.
275, 355-357.
Notton, B.A. & Hewitt, E.J. Molybdenum and tungsten in nitrate reductase. J. Less-Common Metals,
36, 437-448. (Proceedings of the International Conference on The Chemistry and Uses of
Molybdenum, University of Reading, September 1973).
Notton, B.A., Graf Lucia, Hewitt, E.J. & Povey, R.C. The role of molybdenum in the synthesis of
nitrate reductase in cauliflower (Brassica oleracea L. var. Botrytis and Spinach (Spinacea oleracea
L.). Biochim. Biophys. Acta, 364, 45-58.
Hucklesby, D.P., James, D.M. & Hewitt, E.J. Purification and some properties of nitrite reductase.
Biochem. Soc. Trans. 2, 436-437.
Hewitt, E.J. Aspects of trace element requirements in plants and micro- organisms: the metallo
enzymes of nitrate and nitrite reduction. Medical Technical Publications Int. Review of Science,
Biochemistry Series One, Vol. 11, (Ed. D.H.Northcote), pp.199-245.London: Butterworths, and
Baltimore: University Park Press.
Hewitt, E.J. Assimilatory nitrate – nitrite reduction. Ann. Rev. Pl. Physiol. 26, 73-100.
Scawen, M.D., Hewitt, E.J. & James D.M. Preparation, crystallization and properties of Cucurbita
pepo L. plastocyanin and ferredoxin. Phytochem. 14, 1225-1233.
Graf Lucia, Notton, B.A. & Hewitt, E.J. The effects of immune and non-immune rabbit sera on the
various activities of spinach (Spinacea oleracea L.) nitrate reductase. Pl. Sci. Letts. 4, 69-75.
Graf Lucia, Notton, B.A. & Hewitt, E.J. Serological estimation of spinach nitrate reductase.
Phytochem. 14, 1241-1243.
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Hewitt, E.J., James, D.M. & Eaglesham, A.R.J. The non-enzymic reduction of nitrite by benzyl
viologen (free radical) in the presence and absence of ammonium sulphate. Molec. Cell. Biochem. 6,
101-105.
Eaglesham, A.R.J. & Hewitt, E.J. Inhibition of nitrate reductase from spinach (Spinacea oleracea L.)
leaf by adenosine nucleotides. Pl. Cell Physiol. 16, 1137-1149.
Hewitt. E.J. & Smith, T.A. Plant Mineral Nutrition. pp. 280. London: English Universities Press. .
Japanese Edn. (1979; translation by Yonezo Suzuki and Eiichi Takahashi). Tokyo: Rikogakusha
Publishing Co.
Hucklesby, D.P., James, D.M., Banwell, M.J. & Hewitt, E.J. Properties of nitrite reductase from
Cucurbita pepo. Phytochem. 15, 599-603.
Rucklidge, G.J., Notton, B.A. & Hewitt, E.J. Reconstitution in vitro of nitrate reductase from
apoprotein of molybdenum deficient spinach. Biochem. Soc. Trans. 4, 77-80.
Jones, R.W., Abbott, A.J. Hewitt, E.J., James, D.M. & Best, G.R. Nitrate reductase activity and
growth in Paul’s Scarlet rose suspension cultures in relation to nitrogen source and molybdenum.
Planta 133, 27-34.
Hewitt, E.J., Hucklesby, D.P. & Notton, B.A. Nitrate metabolism. In Plant Biochemistry, , (Eds.
Bonner, J. & Varner, J.E.), 3rd Edn., pp. 633-680. New York, San Francisco, London: Academic Press
Hewitt, E.J., Notton, B.A. & Rucklidge, G.J. Formation of nitrate reductase by recombination of
apoprotein fractions from molybdenum deficient plants with a molybdenum-containing complex. J.
Less-common Metals, 54, 537-553
Notton, B.A., Fido, R.J. & Hewitt, E.J. The presence of functional haem in a higher plant nitrate
reductase. Pl. Sci. Letts. 8, 165-170.
Fido, R.J., Gundry, C.S., Hewitt, E.J. & Notton, B.A. Ultra structural features of molybdenum
deficiency and whiptail of cauliflower leaves: Effects of nitrogen source and tungsten substitution for
molybdenum. Aus. J. Pl. Physiol. 4, 675-689.
Mann, A.F., Hucklesby, D.P. & Hewitt, E.J. Sources of reducing power for nitrate reduction in
spinach leaves. Planta 140, 261-263.
Cammack, R., Hucklesby, D.P. & Hewitt, E.J. EPR studies on the mechanism of leaf nitrite reductase.
Signals from the iron-sulphur centres and haem under turnover conditions. Biochem. J. 171, 519-526.
Maldonado, J.M., Notton, B.A. & Hewitt, E.J. Inhibitory effects of ferrocytochrome c on NADHnitrate reductase activity of spinach (Spinacea oleracea L.). Pl. Sci.Letts. 13, 143-150.
Maldonado, M.J., Notton, B.A. & Hewitt, E.J. Effects of reduced dehydrogenase electron acceptors
on the various nitrate dependent activities of spinach (Spinacea oleracea L.) nitrate reductase. FEBS
Letts. 93, 169-173.
Jones, R.W., Abbott, A.J., Hewitt, E.J., Watson, E.F. & Best, G.R. Nitrate reductase activity in Paul’s
Scarlet rose suspension cultures and the differential role of nitrate and molybdenum in induction.
Planta 141, 183-189.
Hewitt, E.J. & Cutting, C.V. (Eds.). Nitrogen Assimilation of Plants. 708 pp. London, New York and
San Francisco: Academic Press. (Proc. 6th Long Ashton Symposium, Sept., 1977).
Notton, B.A. & Hewitt, E.J. Structure and properties of higher plant nitrate reductase, especially
Spinacea oleracea L; In Nitrogen Assimilation of Plants. (Eds. E.J.Hewitt. & C.V.Cutting), pp.227244. London, New York and San Francisco: Academic Press.
Hucklesby, D.P., Cammack, R. & Hewitt, E.J. Properties and mechanisms of nitrite reductase. In
Nitrogen Assimilation of Plants, (Eds. E.J. Hewitt. & C.V. Cutting) pp. 245-254. London, New York
and San Francisco: Academic Press.
Hewitt, E.J., Hucklesby, D.P., Mann, A.F., Notton, B.A. & Rucklidge, G.J. Regulation of nitrate
assimilation in plants. In Nitrogen Assimilation of Plants, (Eds. E.J. Hewitt & C.V. Cutting, C.V),
pp.255-287. London, New York and San Francisco: Academic Press.
Notton, B.A., Fido, R.J., Watson, E.F. & Hewitt, E.J. Presence of haem in the tungsten analogue of
nitrate reductase and its relationship to dehydrogenase function. Pl. Sci. Letts. 14, 85-90.
Fido, R.J., Hewitt, E.J., Notton, B.A., Jones, O.T.G. & Nasrulhaq-Boyce, A. Haem of spinach nitrate
reductase: low temperature spectrum and mid-point potential. FEBS Letts. 99, 180-182.
Mann, A.F., Hucklesby, D.P. & Hewitt, E.J. A modified Hanes and Isherwood spray for improved
detection of phosphate esters in thin layer chromatography. Analyt. Biochem. 96, 6.
Notton, B.A., Watson, E.F. & Hewitt, E.J. Effects of N-Serve (2- chloromethyl-6-(trichloromethyl)
pyridine) formulations on production and loss of nitrate in sand culture experiments. Plant Soil, 51, 112.
Mann, A.F., Hucklesby, D.P. & Hewitt, E.J. Effect of aerobic and anaerobic conditions on the in vivo
nitrate reductase assay in spinach leaves. Planta 146, 83-89.
Hewitt, E.J., Notton, B.A. & Garner, C.D. Nitrate reductases: properties and possible mechanism.
Biochem. Soc. Trans. 7, 629-633.
Hewitt, E.J. Primary nitrogen assimilation from nitrate with special reference to cereals; In Crop
Physiology and Cereal Breeding, (Eds. J.H.J Spiertz.& Th. Kramer), pp. 139-155. Wageningen:
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Centre for Agricultural Publishing and Documentation. (Proc. Eucarpia Workshop, Wageningen,
Nov. 1978).
Hewitt, E.J. & Watson, E.F. The production of micronutrient element deficiencies in plants grown in
recirculated nutrient film (NFT) systems. Symposium on Research on Recirculating Water Culture.
Acta Hort. 98, 179-189.
Hewitt, E.J. Essential and functional aspects of trace elements. In Chemistry and Agriculture, pp. 91127. Special Pubn. No. 36. London: The Chemical Society. (The Chemical Society Annual Chemical
Congress, Bristol, April 1978.)
Notton, B.A. & Hewitt, E.J. Molybdo-enzymes: structure and formation of nitrate reductase from
plants. Proc. Climax 3rd Int. Conf. Chemistry and Uses of Molybdenum, (Eds. H.F. Barry & P.C.H.
Mitchell) pp. 280-286. Ann Arbor, Michigan: Climax Molybdenum Co.,
Hewitt, E.J. & Notton B.A. Nitrate reductase systems in eukaryotic and prokaryotic organisms; In
Molybdenum and Molybdenum-containing Enzymes, (Ed. M.P. Coughlan), pp. 273-325, Oxford, New
York, Toronto, Sydney, Paris and Frankfurt: Pergamon Press.
Fry, I.V., Cammack, R., Hucklesby, D.P & Hewitt, E.J. Stability of the nitrosyl-sirohaem complex of
plant nitrite reductase, investigated by EPR spectroscopy. FEBS Letts. 111, 377-380.
Maldonado, J.M., Notton, B.A. & Hewitt, E.J. The reactivation of nitrate reductase from spinach
(Spinacea oleracea L.) inactivated by NADH and cyanide using trivalent manganese generated either
by illuminated chloroplasts or as mangani-pyrophosphate. Planta 150, 242-248.
Hucklesby, D.P., Lewis, O.A.M. & Hewitt, E.J. A new assay for ferredoxin-dependent glutamineoxoglutarate aminotransferase (glutamate synthase). Analyt. Biochem. 109, 357-361.
Hucklesby, D.P., Dowling, M.J. & Hewitt, E.J. Metabolism of hydroxylamine by spinach leaf discs
and its relationship to nitrate reduction. Planta 151, 151-156.
James, D.M., Hewitt, E.J. & Watson, E.F. Nitrate reductase in barley cultivar Steptoe and Az 12
mutant. Pl. Physiol. 67(4) Supp. Abs. 8.
Lewis, O.A.M., Watson, E.F. & Hewitt, E.J. Determination of nitrate reductase activity in barley
leaves and roots. Ann. Bot. 49, 31-37.
Lewis, O.A.M., James, D.M. & Hewitt, E.J. Nitrogen assimilation in barley (Hordeum vulgare L.) cv.
Mazurka in response to nitrate and ammonium nutrition. Ann. Bot. 49, 39-49.
Fry, I.V., Cammack, R., Hucklesby, D.P. & Hewitt, E.J. Kinetics of leaf nitrite reductase with methyl
viologen and ferredoxin under controlled redox conditions. Biochem. J. 205, 235-238.
Maldonado, A., Notton, B.A. & Hewitt, E.J. The reactivation of nitrate reductase from spinach
(Spinacea oleracea L.) inactivated by NADH and cyanide: effects of peroxidase and associated
systems. Planta 156, 289-294.
Hucklesby, D.P., Dowling, M.J. & Hewitt, E.J. Cyanide formation from glyoxylate and
hydroxylamine catalysed by extracts of higher plant leaves. Planta 156, 487-491.
Notton, B.A., Fido, R.J. & Hewitt, E.J. Reconstitution in vitro of nitrate reductase using extracts of
nitrate reductase – less mutants of barley (Hordeum vulgare L.cv.Steptoe). Plant Sci. Letts. 29, 107112.
Hewitt, E.J. A perspective of mineral nutrition: Essential and functional metals in plants. In Metals
and Micronutrients: Uptake and Utilization by Plants. (Eds. D.A. Robb & S. Pierpoint) pp. 277-323
London, New York: Academic Press.
Notton, B.A. & Hewitt, E.J. Competition for molybdenum by plant cell components and beneficial
effects of tungsten on nitrate reductase formation. In. Chemistry and Uses of Molybdenum (Eds. H.F.
Barry & P.C.H. Mitchell), pp. 159-162. Proc. 4th Climax Internat. Conf. Golden Colorado: Climax
Coorp.
Gutteridge, S., Bray, R.C., Notton, B.A., Fido, R.J. & Hewitt, E.J. Studies by electron paramagnetic
resonance spectroscopy of the molybdenum centre of spinach (Spinacea oleracea L.) nitrate
reductase. Biochem. J. 213, 137-142.
Hewitt, E.J. Principles. In Diagnosis of Mineral Deficiencies in Plants, Vol. 1 (Ch. 1). (Ed. J.B.
Robinson), pp. 7-53. London: HMSO.
Hewitt, E.J. The effects of mineral deficiencies and excesses on growth and composition. In
Diagnosis of Mineral Deficiencies in Plants. Vol. 1 (Ch.1). (Ed. J.B. Robinson), pp. 54-110. London:
HMSO.
Barneix, E.J., James, D.M., Watson, E.F. & Hewitt, E.J. Some effects of nitrate abundance and
starvation on metabolism and accumulation of nitrogen in barley (Hordeum vulgare L. cv. Sonja).
Planta 162, 469-476.
Barneix, A.J., James, D.M., Watson, E.F. & Hewitt, E.J. Nitrate assimilation and growth of Steptoe
barley and one of its nitrate reductase deficient mutants. Ann. Bot. 56, 711-718.
Hewitt, E.J. Bioregulation of nitrogen economy in crops. Basis for new initiatives to reconcile
productivity, environmental protection and fertilizer efficiency. Long Ashton Res. Stn. Ann. Rep.
1984, 118-129.
Hewitt 7