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DOI	10.1111/ppl.14253
	Coordination of pinna, petiole, and root anatomical traits in 24 tropical-subtropical fern species
	Huang, Dong-Liu; Xiang, Wei; Liu, Hui; Zhu, Shi-Dan
发表日期	2024
ISSN	0031-9317
EISSN	1399-3054
起始页码	176
结束页码	2
卷号	176 期号:2
英文摘要	Ferns are primitive vascular plants with diverse morphologies and structures. Plant anatomical traits and their linkages can reflect adaptation to the environment; however, these remain are still poorly understood in ferns. The main objective of this study was to explore whether there was structural coordination among and within organs in fern species. We measured 16 hydraulically related anatomical traits of pinnae, petioles, and roots of 24 representative fern species from the tropical and subtropical forest understory and analyzed trait correlation networks. In addition, we examined phylogenetic signals for the anatomical traits and analyzed co-evolutionary relationships. These results indicated that stomatal density and all petiole anatomical traits exhibited significant phylogenetic signals. Evolutionary correlations were observed between the tracheid diameter and wall thickness of the petiole and between the water transport capacity of the petiole and stomatal density. Conversely, anatomical traits of roots (e.g., root diameter) showed no phylogenetic signals and were not significantly correlated with those of the pinnae and petioles, indicating a lack of structural coordination between the below- and above-ground organs. Unlike angiosperms, vein density is unrelated to stomatal density or pinna thickness in ferns. As root diameter decreased, the cortex-to-stele diameter ratio decreased significantly (enhanced water absorption) in angiosperms but remained unchanged in ferns. These differences lead to different responses of ferns to climate change and improve our knowledge of the water adaptation strategies of ferns.
英文关键词	anatomy; cortex thickness; fern; petiole; phylogeny; pinna; root; stele diameter; stomatal density; vascular bundle
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001184109600001
来源期刊	PHYSIOLOGIA PLANTARUM
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297969
作者单位	Guangxi University; Chinese Academy of Sciences; South China Botanical Garden, CAS
推荐引用方式 GB/T 7714	Huang, Dong-Liu,Xiang, Wei,Liu, Hui,et al. Coordination of pinna, petiole, and root anatomical traits in 24 tropical-subtropical fern species[J],2024,176(2).
APA	Huang, Dong-Liu,Xiang, Wei,Liu, Hui,&Zhu, Shi-Dan.(2024).Coordination of pinna, petiole, and root anatomical traits in 24 tropical-subtropical fern species.PHYSIOLOGIA PLANTARUM,176(2).
MLA	Huang, Dong-Liu,et al."Coordination of pinna, petiole, and root anatomical traits in 24 tropical-subtropical fern species".PHYSIOLOGIA PLANTARUM 176.2(2024).