BIOPOTENTIALS OF MARINE ALGA, Lobophora variegata COLLECTED FROM THE SOUTH INDIAN LITTORAL By:Manilal, A (Manilal, Aseer)[ 1 ] ; Selvin, J (Selvin, Joseph)[ 1 ] ; Thajuddin, N (Thajuddin, Nooruddin)[ 1 ] ; Sujith, S (Sujith, Sugathan)[ 1 ] ; Panikkar, MVN (Panikkar, M. V. N.)[ 2 ] ; Idhayadhulla, A (Idhayadhulla, Akbar)[ 3 ] ; Kumar, RS (Kumar, Radhakrishnan Surendra)[ 3 ] THALASSAS Volume: 28 Issue: 1 Pages: 47-55 Published: JAN 2012 View Journal Information Abstract The study area, Southwest coast of India (Kollam coast) was recognized as an exclusive habitat for diverse seaweeds. Brown algae constitute one of the abundant seaweed biodiversity in the Kollam coast. In the present study, the brown alga, Lobophora variegata was extracted in methanol and the crude extract was evaluated on different hierarchical organisms including pathogenic bacteria, mosquito pupae, nematodes and plant seeds. The algal extract invariably displayed toxicity in all organisms tested. The magnitude of toxicity against organisms was in the order of bacterial pathogens > mosquito pupae > nematodes > plant seeds. The crude extract was fractionated using different solvent systems and the phyco-constituents of the algal fraction were investigated by Gas Chromatography analysis. The present findings revealed that the column purified fraction of L. variegata extract contains fatty acids which may elicit the activity on test organisms. Keywords Author Keywords:Lobophora variegata; brown alga; antimicrobial assay; Pupicidal assay; Phytotoxic assay KeyWords Plus:FATTY-ACIDS; COAST; EXTRACTS; SHRIMP; PATHOGENS Author Information Reprint Address: Manilal, A (reprint author) Bharathidasan Univ, Dept Microbiol, Tiruchchirappalli 620024, Tamil Nadu, India. Addresses: [ 1 ] Bharathidasan Univ, Dept Microbiol, Tiruchchirappalli 620024, Tamil Nadu, India [ 2 ] Sree Narayana Coll, Dept Bot & Biotechnol, Kollam 691001, Kerala, India [ 3 ] Jamal Mohamed Coll, PG & Res Dept Chem, Tiruchchirappalli 620020, Tamil Nadu, India E-mail Addresses:dr.aseermanilal@rediffmail.com Funding Funding Agency Grant Number Council of Scientific and Industrial Research (CSIR), New Delhi View funding text Publisher UNIV VIGO, CAMPUS DE MARCOSENDE, SERVICIO PUBLICACIONES, VIGO, 36310, SPAIN Categories / Classification Research Areas:Marine & Freshwater Biology; Oceanography Web of Science Categories:Marine & Freshwater Biology; Oceanography Document Information Document Type:Article Language:English Accession Number: WOS:000298531600004 ISSN: 0212-5919 Other Information IDS Number: 868OC Cited References in Web of Science Core Collection: 23 Times Cited in Web of Science Core Collection: 0