叶序对复叶植物小叶性状变异及内在联系的影响

doi:10.13287/j.1001-9332.202302.006

应用生态学报 ›› 2023, Vol. 34 ›› Issue (3): 577-587.doi: 10.13287/j.1001-9332.202302.006

叶序对复叶植物小叶性状变异及内在联系的影响

郭羽, 金光泽, 刘志理^*

东北林业大学生态研究中心, 森林生态系统可持续经营教育部重点实验室, 东北亚生物多样性研究中心, 哈尔滨 150040

收稿日期:2022-09-25 接受日期:2022-12-14 发布日期:2023-09-15
通讯作者: *E-mail: liuzl2093@126.com
作者简介:郭羽, 女, 1998年生, 硕士研究生。主要从事植物生理生态学研究。E-mail: 1459054864@qq.com
基金资助:
国家重点研发青年科学家项目(2022YFD2201100)、国家自然科学基金项目(31971636)和中央高校基本科研业务费专项资金项目(2572022DS13)资助。

Effects of phyllotaxy on variation and inner relationships of leaflet traits in compound-leaved plants

GUO Yu, JIN Guangze, LIU Zhili^*

Northeast Asia Biodiversity Research Center, Ministry of Education Key Laboratory of Sustainable Forest Ecosystem Management, Center for Ecological Research, Northeast Forestry University, Harbin 150040, China

Received:2022-09-25 Accepted:2022-12-14 Published:2023-09-15

摘要/Abstract

摘要： 为了解复叶内小叶性状随叶序的分布格局,以小兴安岭3种具有对生叶序的复叶植物水曲柳、黄菠萝和胡桃楸为研究对象,通过测定复叶内不同叶序位置小叶的叶厚、叶面积、比叶面积、叶干物质含量、栅栏组织厚度(栅)、海绵组织厚度(海)、栅海比以及碳、氮、磷含量,探讨小叶性状随叶序的变异规律及叶序对小叶性状间内在联系的影响。结果表明: 3种树小叶的叶面积、叶干物质含量、海绵组织厚度、栅海比随叶序的变化规律主要分为3种:增加、减小、先增加后减小;叶厚、比叶面积、栅栏组织厚度随叶序无明显变化;碳、氮、磷含量随叶序以无明显变化为主。3种树的复叶内部,叶厚、叶面积、比叶面积、叶干物质含量、栅栏组织厚度、海绵组织厚度和栅海比的变异系数和可塑性指数变化范围分别为6.1%～28.6%和0.14～0.70。叶序对小叶性状间的双变量相关关系产生显著影响,小叶干物质含量与比叶面积在水曲柳和胡桃楸不同叶序位置呈现负相关,氮含量与磷含量在水曲柳和黄菠萝不同叶序位置呈现正相关。胡桃楸的一、二级小叶(离叶柄基部最远端为一级小叶)表现为保守策略,七、八级小叶表现为获取策略,而水曲柳和黄菠萝不同叶序位置的小叶未表现出明显不同的生态策略。

关键词: 复叶, 叶序, 小叶性状

Abstract: To understand the distribution pattern of leaflet traits in compound-leaved along with phyllotaxy, we selected three compound-leaved trees with opposite phyllotaxy in Xiaoxing’ an Mountains, Fraxinus mandshurica, Phellodendron amurense, Juglans mandshurica, as the research objects. We measured leaf thickness, leaf area, specific leaf area, leaf dry matter content, palisade tissue thickness, spongy tissue thickness, ratio of palisade tissue thickness to spongy tissue thickness, and carbon content, nitrogen content, phosphorus content of leaflets at different phyllotaxy positions. We analyzed the variation of leaflet traits with phyllotaxy and the influence of phyllotaxy on the inner relationships between leaflet traits. The results showed that the variation of leaflet area, leaflet dry matter content, spongy tissue thickness and ratio of palisade tissue thickness to spongy tissue thickness with the increase of phyllotaxy were mainly divided into three types: increase, decrease, first increase and then decrease. Leaflet thickness, specific leaflet area, palisade tissue thickness, as well as nutrient contents did not change with phyllotaxy. Within compound leaves of three species, the variation coefficients and plasticity index of leaflet thickness, leaflet area, specific leaflet area, leaflet dry matter content, palisade tissue thickness, spongy tissue thickness, ratio of palisade tissue thickness to spongy tissue thickness ranged from 6.1% to 28.6% and from 0.14 to 0.70, respectively. Phyllotaxy had a significant effect on the bivariate correlation between leaflet traits. Specific leaflet area and leaflet dry natter content were negatively correlated in different phyllotaxy positions of F. mandshurica and J. mandshurica. Leaflet nitrogen content and phosphorus content showed a positive correlation in different phyllotaxy positions of F. mandshurica and P. amurense. The first and secondary leaflets (the first leaflets farthest from the base of the petiole) of J. mandshurica showed a conservative strategy, while the seventh and eighth leaflets showed an acquisition strategy. Leaflets of F. mandshurica and P. amurense did not show different ecological strategies.

Key words: compound leaf, phyllotaxy, leaflet trait

郭羽, 金光泽, 刘志理. 叶序对复叶植物小叶性状变异及内在联系的影响[J]. 应用生态学报, 2023, 34(3): 577-587.

GUO Yu, JIN Guangze, LIU Zhili. Effects of phyllotaxy on variation and inner relationships of leaflet traits in compound-leaved plants[J]. Chinese Journal of Applied Ecology, 2023, 34(3): 577-587.

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叶序对复叶植物小叶性状变异及内在联系的影响

Effects of phyllotaxy on variation and inner relationships of leaflet traits in compound-leaved plants

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