Expression of Plant Genes for Arbuscular Mycorrhiza-Inducible Phosphate Transporters and Fungal Vesicle Formation in Sorghum, Barley, and Wheat Roots
Author(s) -
Thongkhoun Sisaphaithong,
Daisuke Kondo,
Haruka Matsunaga,
Yoshihiro Kobae,
Shingo Hata
Publication year - 2012
Publication title -
bioscience biotechnology and biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.509
H-Index - 116
eISSN - 1347-6947
pISSN - 0916-8451
DOI - 10.1271/bbb.120782
Subject(s) - sorghum , biology , gene , arbuscular mycorrhiza , phosphate , symbiosis , mycorrhiza , poaceae , hordeum vulgare , gene expression , arbuscular mycorrhizal fungi , botany , microbiology and biotechnology , biochemistry , agronomy , genetics , bacteria , horticulture , inoculation
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.
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