Elucidation of the morphological changes in graminoid salt glands in the process of leaf development and the signals causing their differentiation in response to salinity stress

2016 Fiscal Year Final Research Report

• Project/Area Number: 15H06273
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Crop production science
• Research Institution: Nagoya University
• Principal Investigator: Oi Takao 名古屋大学, 生命農学研究科, 助教 (60752219)
• Project Period (FY): 2015-08-28 – 2017-03-31
• Keywords: 植物 / ストレス / 生理学 / 形態学 / 毛状突起 / 走査型電子顕微鏡 / 透過型電子顕微鏡 / FIB-SEM

Outline of Final Research Achievements

Microhairs, which are considered to increase salt tolerance, and macrohairs, which are considered to increase insect resistance, are distributed on the leaf surface of salt-tolerant plants belonging to the subfamily Chloridoideae in the Poaceae. The numbers of microhairs and macrohairs are considered to increase or decrease by salt-stress or feeding damage. We have showed by scanning electron microscopy that both of the microhairs and macrohairs developed from undifferentiated cells in the same position of the leaves. We have also clarified that the salt-treatment increased the number of microhairs but did not affect that of macrohairs. The treatment of jasmonic acid, abscisic acid, and cytokinin did not cause such as phenomenon.

Free Research Field

作物生産科学