自然低温对茶树内源激素含量的影响

Abstract

Abstract: To understand the changes of endogenous hormones in tea plant [Camellia sinensis(L.) O. Kuntze] under natural low-temperature, ten-year-old tea plants of the cultivar ‘Longjingchangye’ were used as the material and the changes of endogenous hormones content were determined by enzyme-linked immunosorbent assay (ELISA). The results showed that the fluctuation amplitude of indole acetic acid (IAA) content is highest among all detected hormones during overwintering period. The change of abscisic acid (ABA) content was smaller than IAA but higher than that of gibberellins (GA₃) and zeatinriboside (ZR). In addition, the changing trends of IAA, ZR and GA₃ content is consistent, while the trend of ABA is different from them. Furthermore, the changes between ZR and GA₃, ZR and IAA, IAA and GA₃ content were significantly related. As well, there are significant positive correlations between ABA and IAA, ZR, respectively. All of the above results suggest that endogenous hormones in tea plant are closely related under natural low-temperature. Tea plant may regulate the ratio of ABA/(GA₃ + IAA + ZR) to adapt to low temperature.

Key words: tea plant, natural low temperature, endogenous hormone

CLC Number:

ZENG Guanghui, MA Qingping, WANG Weidong, ZHOU Lin, YIN Ying, LI Xinghui. Effect of Natural Low-temperature on Endogenous Hormones of Camellia sinensis (L.) Kuntze Plant[J]. Journal of Tea Science, 2016, 36(1): 85-91.

References

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Effect of Natural Low-temperature on Endogenous Hormones of Camellia sinensis (L.) Kuntze Plant

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