Differences in leaf heat and drought tolerance but not cold tolerance between karst and non-karst forest plants.

Qiufeng Ning, Yin Wen, Hui Liu, Jiawei Li, Yunpeng Nie

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Article in Plant diversity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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5 authors.

Qiufeng NingGuangxi Key Laboratory of Forest Ecology and Conservation, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Forestry, Guangxi University, Nanning 53004, China.

Yin WenInstitute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.

Hui LiuGuangdong Provincial Key Laboratory of Applied Botany, State Key Laboratory of Plant Diversity and Specialty Crops, Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.

Jiawei LiGuangxi Key Laboratory of Forest Ecology and Conservation, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Forestry, Guangxi University, Nanning 53004, China.

Yunpeng NieInstitute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ongoing climate change and increasingly frequent extreme precipitation events pose greater threats to plant survival. Plants in the karst environment may face heightened risks because shallow soils and poor water retention amplify drought and temperature stresses, yet their physiological tolerances remain poorly understood. In this study, we aimed to investigate the leaf physiological tolerance strategies to drought and temperature stress in plants from karst versus non-karst forests, and to quantify the relative contributions of lithology and phylogeny to variation in these tolerances. In this study, we measured leaf photosynthetic heat and cold tolerance, leaf turgor loss points, and morphological and anatomical traits in 39 dominant woody species from karst and non-karst forests in Guangxi, China. We used Welch's t-tests to compare leaf trait differences between forest types, evaluated the trait relationships with Pearson correlation analysis, and partitioned the contributions of lithology and phylogeny to trait variation using phylogenetic eigenvector regression (PVR). Karst species exhibited more negative leaf turgor loss points (π

Indexed as

Heat stressKarst forestsLeaf traitsPhotosynthetic cold tolerancePhotosynthetic heat toleranceTurgor loss point

Identifiers

PMID41982291

DOI10.1016/j.pld.2025.08.006

PMCPMC13071437

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