Phylogenetic independence in the variations in leaf functional traits among different plant life forms in an arid environment

被引：39

作者：

Akram, Muhammad Adnan ^{[1
,2
]}

Zhang, Yahui ^{[2
]}

Wang, Xiaoting ^{[2
]}

Shrestha, Nawal ^{[2
,3
,4
]}

Malik, Kamran ^{[2
,5
]}

Khan, Imran ^{[6
]}

Ma, Weijing ^{[7
]}

Sun, Ying ^{[2
]}

Li, Fan ^{[2
]}

Ran, Jinzhi ^{[2
]}

Deng, Jianming ^{[2
]}

机构：

[1] Lanzhou Univ, Sch Econ, Lanzhou 730000, Peoples R China

[2] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China

[3] Lanzhou Univ, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China

[4] Lanzhou Univ, Coll Ecol, Lanzhou 730000, Peoples R China

[5] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Ctr Grassland Microbiome, Lanzhou 730000, Peoples R China

[6] Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730000, Peoples R China

[7] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China

来源：

JOURNAL OF PLANT PHYSIOLOGY | 2022年 / 272卷

基金：

中国国家自然科学基金;

关键词：

Interspecific variations; Trade-offs; Phylogenetic signals; Plant functional groups; Convergent and divergent variations; CONVERGENCE; ADAPTATION; GRASSLANDS; CLIMATE; GROWTH; AREA; MASS;

D O I：

10.1016/j.jplph.2022.153671

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Leaf traits of global plants reveal the fundamental trade-offs in plant resource acquisition to conservation strategies. However, which leaf traits are consistent, converged, or diverged among herbs, shrubs, and subshrubs in an arid environment remains unclear. In the present study, we evaluated the trade-offs in six leaf functional traits (LFTs): leaf fresh mass (LFM), leaf dry mass (LDM), leaf dry matter content (LDMC), leaf area (LA), specific leaf area (SLA), and leaf thickness (LTh) of 37 desert plant species. LFTs differed between different plant life forms; LFM, LDM, and LA were slightly higher in herbs, LDMC and LTh in shrubs, and SLA in subshrubs. Conversely, the correlations among LFTs were inconsistent in different life forms, which may indicate their different adaptation strategies in an arid environment. Legumes and C3 plants exhibited slightly higher LDMC, LA, and SLA than non legumes and C-4 plants, whereas non-legumes and C4 plants showed higher (nonsignificant) LFM, LDM, and LTh than legumes and C3 plants. A significant phylogenetic signal (PS) and maximum K-value were found for SLA (K = 0.32). LFTs exhibited convergent and divergent variations among different life forms. However, these variations in LFTs were not influenced by phylogeny. Together, these findings increase our understanding of the variations in ecological adaptations of desert plants as well as adaption strategies of different life forms in an arid environment.

引用

页数：10