Expression of Plant Genes for Arbuscular Mycorrhiza-Inducible Phosphate Transporters and Fungal Vesicle Formation in Sorghum, Barley, and Wheat Roots
Expression of Plant Genes for Arbuscular Mycorrhiza-Inducible Phosphate Transporters and Fungal Vesicle Formation in Sorghum, Barley, and Wheat Roots
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DOI：
10.1271/bbb.120782
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
T. Sisaphaithong;Daisuke Kondo;H. Matsunaga;Yoshihiro Kobae;S. Hata
中科院分区：
文献类型：
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作者：
T. Sisaphaithong;Daisuke Kondo;H. Matsunaga;Yoshihiro Kobae;S. Hata
高粱对丛枝菌根（AM）共生表现出强烈的生长刺激，而大麦和小麦则表现出生长抑制。我们鉴定了这些谷物的 AM 诱导型磷酸盐转运蛋白基因。他们的蛋白质产品在丛枝、细胞内真菌结构的磷酸盐吸收中发挥着重要作用。出乎意料的是，大麦和小麦高水平表达了 AM 诱导基因。因此，它们生长抑制的原因似乎与这些基因的转录无关。值得注意的是，大麦和小麦中形成的真菌囊泡明显多于高粱。这项研究为研究这些不同反应的机制提供了新的线索。
Sorghum shows strong growth stimulation on arbuscular mycorrhizal (AM) symbiosis, while barley and wheat show growth depression. We identified the AM-inducible phosphate transporter genes of these cereals. Their protein products play major roles in phosphate absorption from arbuscules, intracellular fungal structures. Unexpectedly, barley and wheat expressed the AM-inducible genes at high levels. Hence the cause of their growth depression appears to be unrelated to the transcription of these genes. Notably, fungal vesicles were formed significantly more in barley and wheat than in sorghum. This study yielded new clues for investigation of the mechanism underlying these various responses.