热带亚热带26种蕨类植物的吸收根解剖特征

doi:10.17521/cjpe.2021.0328

植物生态学报 ›› 2022, Vol. 46 ›› Issue (5): 593-601.DOI: 10.17521/cjpe.2021.0328

热带亚热带26种蕨类植物的吸收根解剖特征

项伟, 黄冬柳, 朱师丹()

广西大学亚热带农业生物资源保护与利用国家重点实验室, 广西大学林学院广西森林生态与保育重点实验室, 南宁 530004

收稿日期:2021-09-10 接受日期:2021-12-22 出版日期:2022-05-20 发布日期:2022-02-16
通讯作者: 朱师丹
作者简介:* (zhushidan@gxu.edu.cn) ORCID: 朱师丹: 0000-0002-9228-368X
基金资助:
广西八桂青年学者项目

Absorptive root anatomical traits of 26 tropical and subtropical fern species

XIANG Wei, HUANG Dong-Liu, ZHU Shi-Dan()

State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning 530004, China

Received:2021-09-10 Accepted:2021-12-22 Online:2022-05-20 Published:2022-02-16
Contact: ZHU Shi-Dan
Supported by:
Bagui Young Scholarship of Guangxi Zhuang Autonomous Region

摘要/Abstract

摘要：

植物吸收根的生理功能是从土壤中吸收水分和营养物质, 研究其解剖结构有助于揭示植物的环境适应策略。热带亚热带地区蕨类植物丰富, 生态和经济价值较高, 但目前对这一重要植物类群的吸收根解剖特征的研究仍然缺乏。该研究测定了分布在热带亚热带地区4种典型森林的共26种蕨类植物吸收根的解剖特征, 分析它们的种间差异, 结合系统发育与全球自然分布区的气候因子解释根系性状的变异。同时, 通过收集亚热带木本被子植物和温带蕨类植物相关的已发表数据, 比较不同类群的根系性状相关关系的差异。结果表明: (1)这些蕨类植物吸收根特征的种间差异显著, 8个根系性状的种间变异系数范围为20.61%-41.75%。(2)除皮层厚度外根系性状无显著的系统发育信号, 说明性状变异受系统发育的影响较小; 气候因子显著影响根系特征, 根直径和皮层厚度随着最干月(季)降水量减少而增大。(3)随着吸收根直径的减小, 亚热带木本被子植物趋于具有更低的皮层厚度/中柱直径比值, 而蕨类植物则相反; 与温带蕨类相比, 该研究中蕨类植物具有更大的根直径、皮层厚度和管胞直径。该研究有助于提高对热带亚热带蕨类植物根系生理生态适应性的认识。

关键词: 吸收根, 气候, 系统发育, 根直径, 皮层厚度, 中柱直径

Abstract:

Aims The plant absorptive roots function to absorb water and nutrients. Investigations of anatomical traits of the roots are to understanding environmental adaptations of plant species. Ferns in tropical and subtropical regions are abundant and of important ecological and economic values. However, the anatomical traits of the absorptive roots of ferns are not fully comprehended.

Methods We investigated anatomical traits of absorptive roots for 26 fern species from four typical tropical/ subtropical forests by analyzing inter-specific differences in the traits across the species to explain the influence of phylogeny and climate. In addition, we compiled relevant root traits of subtropical angiosperm tree species and temperate fern species from literature to explore the trait differences among the groups.

Important findings (1) We found significant differences in eight root anatomical traits among the 26 fern species, with coefficient of variation ranging from 20.61% to 41.75%. (2) Root traits showed no significant phylogeny signal except in cortex thickness (CT), indicating little affection from phylogeny. However, climate might exert significant impacts on root traits, i.e., root diameter (RD) and CT significantly increased with decreasing precipitation of the driest month (quarter). (3) As RD decreases, the subtropical angiosperm woody plants showed a significant decrease in the ratio of CT to stele diameter (SD), but fern had an opposite pattern. Compared to temperate ferns, the tropical and subtropical ferns had higher RD, CT, and tracheid diameter (TD).

Key words: absorptive root, climate, phylogeny, root diameter, cortex thickness, stele diameter

项伟, 黄冬柳, 朱师丹. 热带亚热带26种蕨类植物的吸收根解剖特征. 植物生态学报, 2022, 46(5): 593-601. DOI: 10.17521/cjpe.2021.0328

XIANG Wei, HUANG Dong-Liu, ZHU Shi-Dan. Absorptive root anatomical traits of 26 tropical and subtropical fern species. Chinese Journal of Plant Ecology, 2022, 46(5): 593-601. DOI: 10.17521/cjpe.2021.0328

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2021.0328

https://www.plant-ecology.com/CN/Y2022/V46/I5/593

图/表 5

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物种 Species	缩写 Abbreviation	科 Family	地点 Site	海拔¹⁾ Altitude¹⁾ (m)
无腺毛蕨 Cyclosorus procurrens	Cp	金星蕨科 Thelypteridaceae	大明山 Damingshan	200-1 900
披针贯众 Cyrtomium devexiscapulae	Cd	鳞毛蕨科 Dryopteridaceae	大明山 Damingshan	380-700
薄叶双盖蕨 Diplazium pinfaense	Dp	蹄盖蕨科 Athyriaceae	大明山 Damingshan	400-1 800
双扇蕨 Dipteris conjugata	Dc	双扇蕨科 Dipteridaceae	大明山 Damingshan	1 400-2 100
栗蕨 Histiopteris incisa	Hi	碗蕨科 Dennstaedtiaceae	大明山 Damingshan	500-1 900
华南鳞盖蕨 Microlepia hancei	Mh	碗蕨科 Dennstaedtiaceae	大明山 Damingshan	300-800
斜方鳞盖蕨 Microlepia rhomboidea	Mr	碗蕨科 Dennstaedtiaceae	大明山 Damingshan	<1 000
乌蕨 Odontosoria chinensis	Oc	鳞始蕨科 Lindsaeaceae	大明山 Damingshan	200-1 900
紫萁 Osmunda japonica	Oj	紫萁科 Osmundaceae	大明山 Damingshan	<2 300
钝角金星蕨 Parathelypteris angulariloba	Pa	金星蕨科 Thelypteridaceae	大明山 Damingshan	500-800
瘤足蕨 Plagiogyria adnata	Pla	瘤足蕨科 Plagiogyriaceae	大明山 Damingshan	500-2 000
华中瘤足蕨 Plagiogyria euphlebia	Ple	瘤足蕨科 Plagiogyriaceae	大明山 Damingshan	500-1 200
井栏边草 Pteris multifida	Pm	凤尾蕨科 Pteridaceae	大明山 Damingshan	<1 000
半边旗 Pteris semipinnata	Ps	凤尾蕨科 Pteridaceae	大明山 Damingshan	<850
蜈蚣凤尾蕨 Pteris vittata	Pv	凤尾蕨科 Pteridaceae	大明山 Damingshan	<2 000
卤蕨 Acrostichum aureum	Aa	凤尾蕨科 Pteridaceae	东寨港 Dongzhaigang	-
桫椤 Alsophila spinulosa	As	桫椤科 Cyatheaceae	伏波 Fubo	260-1 600
乌毛蕨 Blechnum orientale	Bo	乌毛蕨科 Blechnaceae	伏波 Fubo	300-800
金毛狗 Cibotium barometz	Cb	金毛狗科 Cibotiaceae	伏波 Fubo	150-1 800
长叶实蕨 Bolbitis heteroclita	Bh	鳞毛蕨科 Dryopteridaceae	十万大山 Shiwandashan	50-1 500
芒萁 Dicranopteris pedata	Dip	里白科 Gleicheniaceae	十万大山 Shiwandashan	1 880
中华里白 Diplopterygium chinense	Dic	里白科 Gleicheniaceae	十万大山 Shiwandashan	800-1 650
肾蕨 Nephrolepis cordifolia	Nc	肾蕨科 Nephrolepidaceae	十万大山 Shiwandashan	30-1 500
华南紫萁 Osmunda vachellii	Ov	紫萁科 Osmundaceae	十万大山 Shiwandashan	<700
红色新月蕨 Pronephrium lakhimpurense	Pl	金星蕨科 Thelypteridaceae	十万大山 Shiwandashan	300-1 550
条裂叉蕨 Tectaria phaeocaulis	Tp	叉蕨科 Tectariaceae	十万大山 Shiwandashan	400-500

物种 Species	缩写 Abbreviation	科 Family	地点 Site	海拔¹⁾ Altitude¹⁾ (m)
无腺毛蕨 Cyclosorus procurrens	Cp	金星蕨科 Thelypteridaceae	大明山 Damingshan	200-1 900
披针贯众 Cyrtomium devexiscapulae	Cd	鳞毛蕨科 Dryopteridaceae	大明山 Damingshan	380-700
薄叶双盖蕨 Diplazium pinfaense	Dp	蹄盖蕨科 Athyriaceae	大明山 Damingshan	400-1 800
双扇蕨 Dipteris conjugata	Dc	双扇蕨科 Dipteridaceae	大明山 Damingshan	1 400-2 100
栗蕨 Histiopteris incisa	Hi	碗蕨科 Dennstaedtiaceae	大明山 Damingshan	500-1 900
华南鳞盖蕨 Microlepia hancei	Mh	碗蕨科 Dennstaedtiaceae	大明山 Damingshan	300-800
斜方鳞盖蕨 Microlepia rhomboidea	Mr	碗蕨科 Dennstaedtiaceae	大明山 Damingshan	<1 000
乌蕨 Odontosoria chinensis	Oc	鳞始蕨科 Lindsaeaceae	大明山 Damingshan	200-1 900
紫萁 Osmunda japonica	Oj	紫萁科 Osmundaceae	大明山 Damingshan	<2 300
钝角金星蕨 Parathelypteris angulariloba	Pa	金星蕨科 Thelypteridaceae	大明山 Damingshan	500-800
瘤足蕨 Plagiogyria adnata	Pla	瘤足蕨科 Plagiogyriaceae	大明山 Damingshan	500-2 000
华中瘤足蕨 Plagiogyria euphlebia	Ple	瘤足蕨科 Plagiogyriaceae	大明山 Damingshan	500-1 200
井栏边草 Pteris multifida	Pm	凤尾蕨科 Pteridaceae	大明山 Damingshan	<1 000
半边旗 Pteris semipinnata	Ps	凤尾蕨科 Pteridaceae	大明山 Damingshan	<850
蜈蚣凤尾蕨 Pteris vittata	Pv	凤尾蕨科 Pteridaceae	大明山 Damingshan	<2 000
卤蕨 Acrostichum aureum	Aa	凤尾蕨科 Pteridaceae	东寨港 Dongzhaigang	-
桫椤 Alsophila spinulosa	As	桫椤科 Cyatheaceae	伏波 Fubo	260-1 600
乌毛蕨 Blechnum orientale	Bo	乌毛蕨科 Blechnaceae	伏波 Fubo	300-800
金毛狗 Cibotium barometz	Cb	金毛狗科 Cibotiaceae	伏波 Fubo	150-1 800
长叶实蕨 Bolbitis heteroclita	Bh	鳞毛蕨科 Dryopteridaceae	十万大山 Shiwandashan	50-1 500
芒萁 Dicranopteris pedata	Dip	里白科 Gleicheniaceae	十万大山 Shiwandashan	1 880
中华里白 Diplopterygium chinense	Dic	里白科 Gleicheniaceae	十万大山 Shiwandashan	800-1 650
肾蕨 Nephrolepis cordifolia	Nc	肾蕨科 Nephrolepidaceae	十万大山 Shiwandashan	30-1 500
华南紫萁 Osmunda vachellii	Ov	紫萁科 Osmundaceae	十万大山 Shiwandashan	<700
红色新月蕨 Pronephrium lakhimpurense	Pl	金星蕨科 Thelypteridaceae	十万大山 Shiwandashan	300-1 550
条裂叉蕨 Tectaria phaeocaulis	Tp	叉蕨科 Tectariaceae	十万大山 Shiwandashan	400-500

根解剖特征 Root anatomical trait	Blomberg’s K	p
根直径 Root diameter	0.44	0.18
中柱直径 Stele diameter	0.32	0.62
皮层厚度 Cortex thickness	0.60	0.03
中柱直径/根直径 Stele diameter/root diameter	0.43	0.22
皮层厚度/中柱直径 Cortex thickness/stele diameter	0.38	0.41
木质部面积比 Xylem area ratio	0.28	0.82
管胞数量 Tracheid number	0.42	0.25
管胞直径 Tracheid diameter	0.34	0.52

根解剖特征 Root anatomical trait	Blomberg’s K	p
根直径 Root diameter	0.44	0.18
中柱直径 Stele diameter	0.32	0.62
皮层厚度 Cortex thickness	0.60	0.03
中柱直径/根直径 Stele diameter/root diameter	0.43	0.22
皮层厚度/中柱直径 Cortex thickness/stele diameter	0.38	0.41
木质部面积比 Xylem area ratio	0.28	0.82
管胞数量 Tracheid number	0.42	0.25
管胞直径 Tracheid diameter	0.34	0.52

热带亚热带26种蕨类植物的吸收根解剖特征

Absorptive root anatomical traits of 26 tropical and subtropical fern species

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