热带作物学报2025，Vol.46Issue(7)：1716-1723,8.DOI:10.3969/j.issn.1000-2561.2025.07.018
沿海沙地高节竹叶片生理特征的季节变化
Seasonal Variations in Physiological Characteristics of Leaves of Pleioblastus amarus in Coastal Sandy Land
摘要
Abstract
The three-year-old Phyllostachys prominens in the coastal sandy land of Dongshan was used to determine the contents of chlorophyll(Chl),soluble protein(SP),soluble sugar(SS),proline(Pro),and malondialdehyde(MDA)in the leaves in different seasons,and to explore the difference of physiological indexes of bamboo leaves under different seasonal environmental conditions,and analyze its adaptation in different seasonal environments in coastal sandy land,provide theoretical basis for constructing a more complete,abundant and economically valuable coastal shelter forest ecosystem.The chlorophyll a(Chla)and chlorophyll b(Chlb)had the same seasonal variation trend,and reached the highest content in summer.The total chlorophyll content in summer was 24.54％,11.39％and 21.2％higher than that in autumn,winter and spring,respectively.The content of SP was the highest in winter and the lowest in summer.The content of SP in winter was 50.65％,131.42％and 18.52％higher than that in spring,summer and autumn,respectively.The content of SS in summer was significantly higher than that in other seasons,which was 269.83％,112.65％and 99.93％higher than that in spring,autumn and winter,respectively.The content of MDA decreased gradually from au-tumn to summer,and the difference between seasons was significant.The content of Pro was the highest in summer,which was 18.37％,44.06％and 23.13％higher than that in spring,autumn and winter,respectively.Temperature and precipitation had significant effects on soluble sugar,soluble protein and malondialdehyde content.In the coastal area of Dongshan,during the same period of temperature and precipitation,compared with the highest and lowest periods of temperature(precipitation),the content of soluble sugar increased by 99.93％,the content of soluble protein decreased by 56.79％,and the content of malondialdehyde decreased by 52.72％.In summary,P.prominens ensures the smooth progress of photosynthesis by regulating chlorophyll content,and adapts to seasonal changes by regulating the content of osmotic substances.Photosynthesis and osmotic adjustment system are the key mechanisms for P.prominens to adapt to adversity environment.关键词
高节竹/生理特征/季节变化/沿海沙地Key words
Phyllostachys prominens/physiological characteristics/seasonal changes/coastal sandy land分类
农业科技引用本文复制引用
陈振华,张迎辉,蔡星,何天友,陈凌艳,李云鸽,荣俊冬,郑郁善..沿海沙地高节竹叶片生理特征的季节变化[J].热带作物学报,2025,46(7):1716-1723,8.基金项目
福建省自然科学基金项目(No.2022J01396) （No.2022J01396）
福建省区域发展项目(No.2015N3015). （No.2015N3015）
