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大豆科学  2009 

大豆与玉米、小麦、高粱根系分泌物的比较分析

DOI: 10.11861/j.issn.1000-9841.2009.06.1021

Keywords: 大豆,GC-MS,根系分泌物,化感物质

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Abstract:

为研究大豆根系分泌物在大豆连作障碍中的作用,以二氯甲烷作为溶剂,提取培养28d的大豆,小麦,玉米,高粱的根系分泌物,运用气质连用仪分离鉴定,找出大豆与其它3种作物根系分泌物的差异。结果表明:用该法鉴定出大豆根系分泌物成分77种,小麦97种,玉米84种,高粱80种。4种作物均鉴定出烷烃、醇、酸、酯、苯、酚、萘、酰胺、酮、醛类以及其他类化合物。将4种作物的根系分泌物进行比较,相同成分有丙三醇、2,4-戊二醇、邻苯二甲酸、乙苯、对二甲苯、苯乙烯、4-甲基-2,6-二叔丁基苯酚、甲基酚和一部分烷烃等。二苯呋喃,芴,3-甲基-4-氧-戊酸,2-亚甲基-丁醛,3-羟基-丁醛,己醛,9,10-二氢-11,12-乙酰-9,10-桥亚乙基蒽等是大豆根系分泌物中独有成分,其在大豆生长过程中的化感作用有待进一步研究。

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