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EFFECTS OF DIFFERENT NITROGENS ON ACTIVITIES OF NITRATEREDUCTASE, GLUTAMINE SYNTHETASE AND SEED PROTEINVONTENTS IN SOYBEAN VULTIVARS(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2004年02期
Page:
143-146
Research Field:
Publishing date:

Info

Title:
EFFECTS OF DIFFERENT NITROGENS ON ACTIVITIES OF NITRATEREDUCTASE, GLUTAMINE SYNTHETASE AND SEED PROTEINVONTENTS IN SOYBEAN VULTIVARS
Author(s):
Chen Yu1;  2Zhu Baoge1Zhang Jing1Liang Zongsuo2
1 .Inst itute of Genet ics and Developmental Biology , Chinese Academy of Sciences ,Bej ing , 100101 ;
2 .College of Life Sciences , Northwestern Sci -Tech University ofAgriculture and Forest ry , Yangling , 712100
Keywords:
Soybean ; Nit rate reductase ; Glutamine synthetase ; Seed protein content
PACS:
S 565.1
DOI:
10.11861/j.issn.1000-9841.2004.02.0143
Abstract:
Effect s of different nitrogens(NO3--N ,NH4+ -N , NO3--NH4+)on nit rate reductase (N R)andg lutamine sy nthetase(GS)activities , and seed protein contents of soybean cultivars during pod -bearing periodw ere investigated .The experimental result s indicated that NR activities of leaves in four soybean geno typestreated by NO3- -N were obviously enhanced .However , NR act ivities of these genotypes treated by NH4+-N were the low est in three kinds of nit rogens .GS act ivit ies induced by NO3--NH4+and NH4+ -N w ere remarkablyincreased .Seed protein content s of four genoty pes induced by three kinds of ni trogens were higherthan those done by H2O(CK).The correlation between leaf NR activity and seed protein content w as ex tremelysignif icant (r = 0 .633＊).Hence it is suggested that high N R activity in soybean leaves should be one of bio -chemical index fo r selecting soybean germplasms wi th seed hig h protein .

References:

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