Response mechanism of anthocyanins accumulation in young leaves of dominant tree species in different successional stages of subtropical forests to environmental temperature changes

IF 3.4 3区 生物学 Q1 PLANT SCIENCES
Plant Biology Pub Date : 2026-07-13 Epub Date: 2026-06-15 DOI:10.1111/plb.70232
W. Lin, G. Z. Yan, Z. C. Yu, G. Y. Deng, L. N. Fan, W. He, C. L. Peng
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Abstract

Abstract Image

亚热带森林不同演替阶段优势树种幼叶花青素积累对环境温度变化的响应机制
红嫩叶是热带和亚热带森林树种中常见的一种现象。本研究探讨了鼎湖山森林不同演替阶段树种叶片变红的季节规律和幼叶花青素积累的温度机制。在野外条件下,选取定湖山森林19种中期演替树种和34种晚期演替树种,研究了夏季和冬季幼叶颜色和生理参数。选择2个中期演替优势树种和2个后期演替优势树种进行盆栽试验,研究了幼苗叶片颜色和生理参数对季节温度变化的响应。顶虎山森林中,超过一半的中后期演替树种全年在幼叶中积累花青素,而大约40%的后期演替树种只在冬季积累花青素。盆栽试验中,夏季高温条件下,中期演替优势种幼叶积累花青素,而后期演替优势种幼叶在冬季低温条件下积累花青素。在田间和盆栽试验中,花青素积累量与可溶性糖含量呈正相关。此外,花青素积累对抗氧化能力影响不显著。结果表明,亚热带森林不同演替阶段树种幼叶变红具有明显的季节特征。叶片变红似乎受温度调节和可溶性糖诱导。此外,红色为嫩叶提供光保护。这些发现增强了我们对亚热带森林演替动力学的认识。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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