Advances in studies of absorption and utilization of amino acids by plants: A review

Plant can directly take up the intact amino acids, thus bypass the microbial mineralization of organic nitrogen. As an excellent carbon and nitrogen source, there exists competition for amino acid absorption between plant roots.and soil microorganisms. And the total flux of amino acids in soil may b...

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Bibliographic Details
Published inYing yong sheng tai xue bao Vol. 26; no. 3; p. 919
Main Authors Cao, Xiao-chuang, Wu, Liang-huan, Ma, Qing-xu, Jin, Qian-yu
Format Journal Article
LanguageChinese
Published China 01.03.2015
Subjects
Amino Acids - metabolism
Carbon - metabolism
Ecosystem
Nitrogen - metabolism
Nitrogen Isotopes
Plant Roots
Plants - metabolism
Soil - chemistry
Soil Microbiology
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Summary:Plant can directly take up the intact amino acids, thus bypass the microbial mineralization of organic nitrogen. As an excellent carbon and nitrogen source, there exists competition for amino acid absorption between plant roots.and soil microorganisms. And the total flux of amino acids in soil may be enormous due to the extensive sources and short half-life. Studies on amino acid nitrogen nutritional contribution for plant by the technique of nitrogen isotopic tracer, has become a research topic in recent years ,which will help us better understand the principle of soil fertility. This paper summarized the recent researches on amino acid morphological characteristics in soil and its metabolic mechanism and nitrogen nutritional contribution for plant in different ecosystems, and discussed the present status and development trend of the amino acid circulation mechanism in the plant-soil-microorganism ecosystem and its bioavailability for plant. Finally, the topics of environmental regulating mechanism of amino
ISSN:1001-9332