Overwintering performance of bamboo leaves, and establishment of mathematical model for the distribution and introduction prediction of bamboos

作者：Yufang Wu, Jing Li, Lixia Yu, Shuguang Wang, Zhuo Lv, Long Hao, Jingyu Zhai, Shuyan Lin, Yong Meng, Zhihua Cao, Hui Sun · 发表于：Frontiers in Plant Science · 年份：2023 · DOI：10.3389/fpls.2023.1255033 · 被引用次数：12 · 研究领域：Bamboo properties and applications、Plant Water Relations and Carbon Dynamics、Leaf Properties and Growth Measurement

Bamboo has great economic values and is used extensively in many industries, and their natural distribution range was divided into 12 zones in China according to the temperature of their geographical distribution in previous works. Different bamboo species had significantly different abilities in low-temperature tolerance, which need to be considered carefully during ex-situ introduction. In this paper, we observed and evaluated the low-temperature damage of 19 bamboo species in winter, and measured the physiological changes of bamboo leaves. A total of 3060 leaf samples were obtained from 102 core collections in 34 bamboo species from the 5 regions of Chinese mainland for anatomical comparison, in order to screen out the key anatomical indicators related to their low-temperature tolerance and to establish a mathematical prediction model for bamboo introduction. The results showed that the low-temperature resistance of clustered bamboos was generally lower than that of the scattered bamboos. The decreased temperature led to the constant decrease of net photosynthetic rate and transpiration rate, but the increase of soluble sugar content in all bamboo species. There was no dormancy for all bamboo species in winter. The temperate bamboos showed lower photosynthesis as compared to tropical bamboos in winter. The leaf shape of bamboos was closely related to their distribution. A total of 13 leaf indicators were screened and more suitable to estimate the low-temperature tolerant a...