Study on the Physiological Biochemistry of Pre-harvest Sprouting and Scanning 
Electron Microscopy of Glume in Rice

Abstract

Abstract: Scanning electron microscopy of easy or uneasy-germinated glumes, determining the contents of endogenous hormones and the activity of α-amylase were studied from 1~4 day pre-harvest sprouting rice (Oryza sativa ssp.japonica). The results showed that the activity of α-amylase and the contents of IAA、GA1+3 and ZR were higher in easy-germinated rice than those in the uneasy-germinated rice, while ABA content in easy-germinated rice was lower than that in uneasy-germinated rice. The change of GA1+3/ABA rate accorded with that of GA1+3. Scanning electron microscopy showed that the cell surface of glume was loose arranged with more villus and bigger hole and germinal aperture, which had lesser mechanism resistance and better water absorptivity in easy-germinated rice. This research also indicated that pre-harvest sprouting related to α-amylase activity, endogenous hormone contents and glume structure in rice.

CLC Number:

Q945

Cai Jianxiu, Chen Wei. Study on the Physiological Biochemistry of Pre-harvest Sprouting and Scanning Electron Microscopy of Glume in Rice[J]. Chinese Agricultural Science Bulletin, 2007, 23(8): 207-207.

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Study on the Physiological Biochemistry of Pre-harvest Sprouting and Scanning Electron Microscopy of Glume in Rice

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