气候变化领域集成服务门户(CCPortal): A new carnivorous plant lineage (Triantha) with a unique sticky-inflorescence trap

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DOI	10.1073/pnas.2022724118
	A new carnivorous plant lineage (Triantha) with a unique sticky-inflorescence trap
	Lin Q.; Ané C.; Givnish T.J.; Graham S.W.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:33
英文摘要	Carnivorous plants consume animals for mineral nutrients that enhance growth and reproduction in nutrient-poor environments. Here, we report that Triantha occidentalis (Tofieldiaceae) represents a previously overlooked carnivorous lineage that captures insects on sticky inflorescences. Field experiments, isotopic data, and mixing models demonstrate significant N transfer from prey to Triantha, with an estimated 64% of leaf N obtained from prey capture in previous years, comparable to levels inferred for the cooccurring round-leaved sundew, a recognized carnivore. N obtained via carnivory is exported from the inflorescence and developing fruits and may ultimately be transferred to next year’s leaves. Glandular hairs on flowering stems secrete phosphatase, as seen in all carnivorous plants that directly digest prey. Triantha is unique among carnivorous plants in capturing prey solely with sticky traps adjacent to its flowers, contrary to theory. However, its glandular hairs capture only small insects, unlike the large bees and butterflies that act as pollinators, which may minimize the conflict between carnivory and pollination. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Enzymatic digestion; Holocarnivory; Isotopic analysis; Monocotyledons; Pollination conflict; Predation
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238440
作者单位	Department of Botany, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; UBC Botanical Garden, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Department of Botany, University of Wisconsin–Madison, Madison, WI 53706, United States; Department of Statistics, University of Wisconsin–Madison, Madison, WI 53706, United States
推荐引用方式 GB/T 7714	Lin Q.,Ané C.,Givnish T.J.,et al. A new carnivorous plant lineage (Triantha) with a unique sticky-inflorescence trap[J],2021,118(33).
APA	Lin Q.,Ané C.,Givnish T.J.,&Graham S.W..(2021).A new carnivorous plant lineage (Triantha) with a unique sticky-inflorescence trap.Proceedings of the National Academy of Sciences of the United States of America,118(33).
MLA	Lin Q.,et al."A new carnivorous plant lineage (Triantha) with a unique sticky-inflorescence trap".Proceedings of the National Academy of Sciences of the United States of America 118.33(2021).