Partial mycoheterotrophy in Apostasia wallichii, an early-diverging Asian tropical orchid

IF 3.6 3区 生物学 Q1 PLANT SCIENCES Plant Biology Pub Date : 2025-03-17 DOI:10.1111/plb.70004
K. Suetsugu, H. Okada, M. Suleiman, H. Tsukaya
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早期分化的亚洲热带兰花的部分分枝异养性。
所有兰花在其早期发育阶段都表现出真菌异养性,这使得某些物种在成年期保持这种营养模式。因此,许多兰花采用部分分枝异养,这是一种混合营养策略,通过自养和分枝异养结合碳获取。然而,这种策略是否代表了祖先的特征仍然存在争议。本研究探讨了亚洲热带地区(沙巴,马来西亚婆罗洲)早分化兰花Apostasia wallichii和同域光合兰花Cystorchis variegata的真菌共生体和营养策略。具体来说,我们通过分析δ13C和δ15N同位素剖面和采用高通量DNA测序来探索它们潜在的营养模式和分枝菌。基于元条形码的群落分析显示,所调查的A. wallichii个体主要与推定的腐坏性Botryobasidium真菌相关,而C. variegata个体同时与非外生菌根性根丝胞菌、腐坏性非根丝胞菌和外生菌根真菌相关。此外,稳定同位素分析表明,与共生自养植物相比,金合欢和金合欢的13C和15N含量均显著增加,表现出部分菌异养的特征。我们的研究结果,特别是在A. wallichii中发现的与非外生菌根真菌相关的部分分枝异养性,表明绿色兰花的部分分枝异养性可能比以前认为的更广泛,并且可能代表了兰花固有的祖先特征。
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来源期刊
Plant Biology
Plant Biology 生物-植物科学
CiteScore
8.20
自引率
2.60%
发文量
109
审稿时长
3 months
期刊介绍: Plant Biology is an international journal of broad scope bringing together the different subdisciplines, such as physiology, molecular biology, cell biology, development, genetics, systematics, ecology, evolution, ecophysiology, plant-microbe interactions, and mycology. Plant Biology publishes original problem-oriented full-length research papers, short research papers, and review articles. Discussion of hot topics and provocative opinion articles are published under the heading Acute Views. From a multidisciplinary perspective, Plant Biology will provide a platform for publication, information and debate, encompassing all areas which fall within the scope of plant science.
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