22 research outputs found
Effect of calcium on synthesis of dipicolinic acid inPenicillium citreoviride and its feedback resistant mutant
No full textCareer Barriers, Career Decisions Making Self-Efficacy and Career Decisions Making Levels for North Korean females Refugees: Compared with South Korean females
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The Relationship among Self Leadership, Career identity and Career Decision Levels of Taekwondo Majoring College Students
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The transport of ammonium and methylammonium in wild type and mutant cells of Aspergillus nidulans
No full textMechanisms of ammonium transport, accumulation, and retention in ooyctes and yeast cells expressing Arabidopsis AtAMT1;1
Get PDFAbstractAmmonium is a primary source of N for plants, so knowing how it is transported, stored, and assimilated in plant cells is important for rational approaches to optimise N-use in agriculture. Electrophysiological studies of Arabidopsis AtAMT1;1 expressed in oocytes revealed passive, Δψ-driven transport of NH4+ through this protein. Expression of AtAMT1;1 in a novel yeast mutant defective in endogenous ammonium transport and vacuolar acidification supported the above mechanism for AtAMT1;1 and revealed a central role for acid vacuoles in storage and retention of ammonia in cells. These results highlight the mechanistic differences between plant AMT proteins and related transporters in bacteria and animal cells, and suggest novel strategies to enhance nitrogen use efficiency in agriculture
