نتایج جستجو برای: phosphate starvation stress
تعداد نتایج: 548914 فیلتر نتایج به سال:
Mycobacterium tuberculosis requires the phosphate-sensing signal transduction system Pst/SenX3-RegX3 to resist host immune responses. A ΔpstA1 mutant lacking a Pst phosphate uptake system component is hypersensitive to diverse stress conditions in vitro and is attenuated in vivo due to constitutive expression of the phosphate starvation-responsive RegX3 regulon. Transcriptional profiling of the...
To cope with a sudden increase in the external pH value to 8.9, Bacillus subtilis cells induce about 80 genes which can be divided into two classes. Most of these genes are members of the sigma(W) regulon, while some are under the control of so-far-unknown transcriptional regulators. The genes of the pst operon belong to the second class. Here, we attempted to answer the questions of why and ho...
The ugp operon of Escherichia coli includes genes involved in the uptake of sn-glycerol-3-phosphate and glycerophosphoryl diesters and belongs to the pho regulon which is induced by phosphate limitation. This operon has two transcriptional initiation sites, as determined by S1 nuclease mapping of the in vivo transcripts. The downstream promoter has multiple copies of the pho box, the consensus ...
inoculation of phosphate-solubilizing microorganisms along with rock phosphate is known to enhance the available p from soil. the success of such solubilization is largely dependent on the ability of the inoculant strain to survive under adverse environmental conditions. in this context, liquid inoculants are gaining importance and are becoming popular with longer shelf-life. in the present inv...
Phosphate (Pi) is one of the least available plant nutrients found in the soil. A significant amount of phosphate is bound in organic forms in the rhizosphere. Phosphatases produced by plants and microbes are presumed to convert organic phosphorus into available Pi, which is absorbed by plants. In this study we describe the isolation and characterization of a novel tomato (Lycopersicon esculent...
Intestinal epithelial cells are tightly bound by tight junction proteins (TJP) which dynamic and sensitive to environmental stress. However, the role of endocytic pathway in regulation TJP abundance integrity during nutrient stress is poorly understood. Therefore, this study was conducted investigate starvation mechanism process. IPEC-J2 were subjected Krebs-Ringer bicarbonate buffer (KRB) TJP,...
Mitochondrial dysfunction can increase oxidative stress and extend lifespan in Caenorhabditis elegans. Homeostatic mechanisms exist to cope with disruptions to mitochondrial function that promote cellular health and organismal longevity. Previously, we determined that decreased expression of the cytosolic pentose phosphate pathway (PPP) enzyme transaldolase activates the mitochondrial unfolded ...
Phosphorus (P), an essential macronutrient for all living cells, is indispensable for agricultural production. Although Arabidopsis (Arabidopsis thaliana) PHOSPHATE RESPONSE1 (PHR1) and its orthologs in other species have been shown to function in transcriptional regulation of phosphate (Pi) signaling and Pi homeostasis, an integrative comparison of PHR1-related proteins in rice (Oryza sativa) ...
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