Effect of glyphosate toxicity on growth, pigment and alkaline phosphatase activity in cyanobacterium Anabaena doliolum: a role of inorganic phosphate in glyphosate tolerance.

Simple item page
dc.contributor.authorShikha,en_US
dc.contributor.authorSingh, D Pen_US
dc.contributor.authorDarmwal, N Sen_US
dc.date.accessioned2009-05-28T11:49:08Z
dc.date.available2009-05-28T11:49:08Z
dc.date.issued2004-02-31en_US
dc.description.abstractResponse of glyphosate toxicity on photoautotrophic cyanobacterium A. doliolum and its mutant strain was investigated. Chlorophyll a content of both the wild type and mutant strain in the presence of glyphosate (N-phosphonomethyl glycine) initially showed an increasing trend when supplemented with Pi and a declining tendency under the Pi-starved condition. The results suggested that both the wild type and mutant strains were more sensitive to glyphosate in the absence of phosphate. Alkaline phosphatase activity of wild type strain in the presence of Pi, enhanced in response to addition of glyphosate (40 microg/ml), but the activity remained unaltered by addition of glyphosate in the Pi-starved cells, whereas the alkaline phosphatase activity in the mutant strain under both Pi-starved as well as unstarved conditions was stimulated (approximately 5.4 and 3.1-fold, respectively) by addition of glyphosate. The results on alkaline phosphatase activity indicated a glyphosate-induced depletion in the phosphate content of the cells, particularly in the mutant strain, as evident from the stimulated activity of alkaline phosphatase. It is suggested that enzyme activity in the Pi-starved wild type cells may not be influenced any further by glyphosate, as cellular phosphate reserve might not be available for further depletion.en_US
dc.description.affiliationDepartment of Microbiology, Dr. RML Avadh University, Faizabad 224 001, India. dr_Shikha2003@yahoo.co.inen_US
dc.identifier.citationShikha , Singh DP, Darmwal NS. Effect of glyphosate toxicity on growth, pigment and alkaline phosphatase activity in cyanobacterium Anabaena doliolum: a role of inorganic phosphate in glyphosate tolerance. Indian Journal of Experimental Biology. 2004 Feb; 42(2): 208-13en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/57242
dc.language.isoengen_US
dc.source.urihttps://www.niscair.res.in/ScienceCommunication/ResearchJournals/rejour/ijeb/ijeb0.aspen_US
dc.subject.meshAlkaline Phosphatase --drug effectsen_US
dc.subject.meshCell Division --drug effectsen_US
dc.subject.meshCyanobacteria --drug effectsen_US
dc.subject.meshDrug Toleranceen_US
dc.subject.meshGlycine --analogs & derivativesen_US
dc.subject.meshHerbicides --toxicityen_US
dc.subject.meshPhosphates --metabolismen_US
dc.subject.meshPigmentation --drug effectsen_US
dc.subject.meshStarvationen_US
dc.titleEffect of glyphosate toxicity on growth, pigment and alkaline phosphatase activity in cyanobacterium Anabaena doliolum: a role of inorganic phosphate in glyphosate tolerance.en_US
dc.typeJournal Articleen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
Files
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.79 KB
Format:
Plain Text
Description:
Download
Collections
Indian Journal of Experimental Biology