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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

期刊文章

Adjunctive nodule enzyme activities associated with tripartite symbiosis in Astragalus cicer L  [1997]

Lynd, J.Q. (Oklahoma State University, Stillwater, OK.); Ansman, T.R.;

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Cicer milkvetch (Astragalus cicer L.) is a productive forage legume adapted to a wide range of soil types. It is a long-lived, nonbloating rhizomatous perennial with tolerance for low soil fertility, unfavorable acid pH and salinity. It has much value for soil fertility improvement and soil erosion control. Objectives of this study were to determine soil fertility influencing growth, nodulation, cytosol reductases, and nitrogenase activity with effective mycorrhizal colonization. Significant increases in growth, nodulation, nitrogenase activity and seed yield resulted for mycorrhizal plants. Increases in nitrogenase levels were also congruent with increased nodulation for soil K amendments. Differences were not significant for N transformation enzyme activity levels for aspartate transaminase (AST), glutamate dehydrogenase (GDH), glutamine synthetase (GS), and glutamate-oxoglutarate transaminase (GOGAT). However, highly significant differences were apparent for greater nonmycorrhizal nitrate reductase and cytosol nitrate N with an inverse higher cytosol pyruvate and thiosulfonate reductase (TSR) of mycorrhizal colonized plants. Definitive histological microscopy was highly correlated with both explicative enzyme cytochemistry and fluorescence parameters for nodule cytosol (reductase) enzyme transformations
来自期刊
Journal of plant nutrition (USA)
ISSN : 0190-4167

书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
1997
卷:
20
期:
1
起始页:
55
结束页:
68
所有题名:
"Adjunctive nodule enzyme activities associated with tripartite symbiosis in Astragalus cicer L"@eng
其它:
"references"
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书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
1997
卷:
20
期:
1
起始页:
55
结束页:
68
所有题名:
"Adjunctive nodule enzyme activities associated with tripartite symbiosis in Astragalus cicer L"@eng
其它:
"references"