Effect of drought stress on leaf ultrastructure of Rhododendron L.

doi:10.14088/j.cnki.issn0439-8114.2019.24.033

HUBEI AGRICULTURAL SCIENCES ›› 2019, Vol. 58 ›› Issue (24): 136-141.doi: 10.14088/j.cnki.issn0439-8114.2019.24.033

• Horticulture & Local Products • Previous Articles Next Articles

Effect of drought stress on leaf ultrastructure of Rhododendron L.

ZHOU Yuan¹, TONG Jun¹, MAO Jing¹, XU Dong-yun¹, FANG Lin-chuan¹, DONG Yan-fang¹, LIU Yi-man¹, GUO Cai-xia², TAN Qing², YANG Jun-juan³, ZHU An-xin³

1.Institute of Forestry & Fruit-tree,Wuhan Academy of Agricultural Sciences/Hubei Engineering Technology Research Center of Landscape Plant,Wuhan 430075,China;
2.Wuhan Academy of Agricultural Sciences,Wuhan 430065,China;
3.Jiangxia Forestry Science and Technology Promotion Station,Wuhan 430000,China

Received:2019-08-12 Online:2019-12-25 Published:2019-12-25

Abstract

Abstract: Using transmission electron microscope, the leaf ultrastructure were investigated in Rhododendron obtusum cv. Yanzhimi, Rhododendron obtusum cv. Huahudie and Rhododendron obtusum cv. Xishi under drought stress in light incubator. The results showed that the damage of mitochondria and chloroplast increased as the drought degree increased, and chloroplast was more sensitive than mitochondria to the external environment. The plasmolysis appeared later in Rhododendron obtusum ‘Yanzhimi’ with relatively highest drought resistance. In which, the chloroplast and mitochondria were less damaged. There was an important association between leaf cell structure and drought resistance in Rhododendron L..

Key words: Rhododendron L., drought stress, drought resistance, ultrastructure, transmission electron microscope （TEM）

CLC Number:

S685.21

ZHOU Yuan, TONG Jun, MAO Jing, XU Dong-yun, FANG Lin-chuan, DONG Yan-fang, LIU Yi-man, GUO Cai-xia, TAN Qing, YANG Jun-juan, ZHU An-xin. Effect of drought stress on leaf ultrastructure of Rhododendron L.[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(24): 136-141.

References 7

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Effect of drought stress on leaf ultrastructure of Rhododendron L.

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