Bacterial Chemotaxis to Atrazine and Related s -Triazines
نویسندگان
چکیده
منابع مشابه
Bacterial chemotaxis to atrazine and related s-triazines.
Pseudomonas sp. strain ADP utilizes the human-made s-triazine herbicide atrazine as the sole nitrogen source. The results reported here demonstrate that atrazine and the atrazine degradation intermediates N-isopropylammelide and cyanuric acid are chemoattractants for strain ADP. In addition, the nonmetabolized s-triazine ametryn was also an attractant. The chemotactic response to these s-triazi...
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Half-lives (t1/2) of two soil incorporated s-triazines (atrazine and prometon) and two thiocarbamate (EPTC and triallate) herbicides were determined in relation to soil moisture content in two California soils. Treated soils were incubated at three moisture levels in aerated glass vials at 25 +/- 1 degree C and were analyzed at 0, 7, 16, 28, 56 and 112 day intervals. Loss of herbicides in all t...
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The effect on enzyme kinetics of the presence of competitive inhibitors in constant molar ratio to t’he substrate has been described by Tubbs (I) and by Dalziel (2, 3). In this as yet unfamiliar situation, the inhibitor has the effect of increasing the apparent mutual affinity of enzyme and substrate. Thus, the slopes of reciprocal plots of the kinetic data are unchanged by the presence of the ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2009
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.01030-09