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作 者 ：樊明寿;陈刚;孙国荣

期 刊 ：作物学报 2005年 31卷 09期 页码：1120-1124

关键词：磷胁迫；玉米；通气组织；基因型；变异；

Keywords:P stress, Maize, Aerenchyma, Genotype, Variation,

摘 要 ：为了研究通气组织在缺磷植物中的生理作用，对低磷胁迫下玉米种子根通气组织的形成时间进行了观察，并比较了磷营养效率不同的8个玉米自交系根组织结构的差异。结果表明，在低磷胁迫下，玉米种子根内皮层细胞解体及通气组织的形成早于植株生物量、根冠比、比根长的变化，甚至早于茎叶磷浓度的变化；在相同的磷胁迫下，不同基

Abstract:It is well known that aerenchyma formation in root cortical section is due to hypoxia and this has been considered as an adaptation of landplant to flooding.It has been shown recently by our work that hypoxia is not the only factor which can induce aerenchyma formation in root cortex. Using wheat, m

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