首页|Response of Leaf Tissue Structure to Exogenous ABA in Korla Fragrant Pear

Response of Leaf Tissue Structure to Exogenous ABA in Korla Fragrant Pear

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To study the effects of different concentrations of Abscisic Acid (ABA) on leaf tissue structure of Korla fragrant pear and lay the foundation for the cultivation and regulation of Korla fragrant pear. Using the paraffin section method, the leaf thickness, the epidermis thickness, the palisade tissue thickness and the sponge tissue thickness were measured; palisade spongy ratio, Cell Tightness (CT) and Cell Looseness (CL) were examined after treatments with exogenous ABA. Leaf thickness, leaf palisade spongy ratio and palisade tissue thickness increased significantly after exogenous ABA treatment compared with CK, while the effect on leaf epidermis was not obvious. The leaf thickness and palisade tissue thickness increased evidently after 70 mg ? L-1ABA treatment by 24.89% and 41.10%, respectively. The tissue structures of leaves were more compact, while CL was lower after 70 and 90 mg ? L-1 ABA treatments. The effects of different concentrations of exogenous ABA could increase the leaf thickness, palisade tissue thickness of Korla fragrant pear and CT, reduced the thickness of spongy tissue and CL. Among those concentrations of exogenous ABA, the effect of spraying 70 mg ? L-1exogenous ABA was suitable for improving cold resistance of Korla fragrant pear.

Korla fragrant pearABAleaf tissue structure

Zhou Wei-quan、Cheng Gong、Mansuer ? Nasier、Yang Wen-li、Zhao Shi-rong、Qi Yan-qiao、Zhang Shi-kui、Liao Kang

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Featured Fruit Tree Research Center, Xinjiang Agricultural University, Urumqi 830052, China

Luntai Fruit Resources Nursery of Xinjiang Academy of Agricultural Sciences, Luntai 841600, Xinjiang, China

Supported by Science and Technology Planning Projects of China during the 12th Five-year Plan-key Techniques of High Quality andCentral Finance Forestry Science and Technology Extension ProjectNational Featured Fruit Trees Root Stock Germplasm Resources Platform (Luntai)

2014BAD16B07ZYLTKJTG2015017NICGR2017-60

2017

东北农业大学学报(英文版)
东北农业大学

东北农业大学学报(英文版)

影响因子：0.075
ISSN：1006-8104
年,卷(期)：2017.24(4)
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