气候变化领域集成服务门户(CCPortal): Mediterranean pine forest decline: A matter of root-associated microbiota and climate change

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DOI	10.1016/j.scitotenv.2024.171858
	Mediterranean pine forest decline: A matter of root-associated microbiota and climate change
	Lasa, Ana V.; Fernandez-Gonzalez, Antonio Jose; Villadas, Pablo J.; Mercado-Blanco, Jesus; Perez-Luque, Antonio J.; Fernandez-Lopez, Manuel
发表日期	2024
ISSN	0048-9697
EISSN	1879-1026
起始页码	926
卷号	926
英文摘要	Forest ecosystems worldwide currently face worrying episodes of forest decline, which have boosted weakening and mortality of the trees. In the Mediterranean region, especially in the southeast Iberian Peninsula, Pinus sylvestris forests are severely affected by this phenomenon, and it has been commonly attributed to drought events. Remarkably, the role of root microbiota on pine decline has been overlooked and remains unclear. We therefore used metabarcoding to identify the belowground microbial communities of decline-affected and unaffected pine trees. Taxonomic composition of bacterial and fungal rhizosphere communities, and fungal populations dwelling in root endosphere showed different profiles depending on the health status of the trees. The root endosphere of asymptomatic trees was as strongly dominated by 'Candidatus Phytoplasma pini' as the root of decline-affected pines, accounting for >99 % of the total bacterial sequences in some samples. Notwithstanding, the titer of this phytopathogen was four-fold higher in symptomatic trees than in symptomless ones. Furthermore, the microbiota inhabiting the root endosphere of decline-affected trees assembled into a less complex and more modularized network. Thus, the observed changes in the microbial communities could be a cause or a consequence of forest decline phenomenon. Moreover, ' Ca . Phytoplasma pini' is positively correlated to Pinus sylvestris decline events, either as the primary cause of pine decline or as an opportunistic pathogen exacerbating the process once the tree has been weaken by other factors.
英文关键词	Pine forest decay; Rhizosphere microbiota; Root endosphere microbiota; Phytoplasmas; Pathogen detection; Sierra Nevada National Park
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001221637300001
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298223
作者单位	Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Estacion Experimental del Zaidin (EEZ); Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Estacion Experimental del Zaidin (EEZ); Consejo Superior de Investigaciones Cientificas (CSIC)
推荐引用方式 GB/T 7714	Lasa, Ana V.,Fernandez-Gonzalez, Antonio Jose,Villadas, Pablo J.,et al. Mediterranean pine forest decline: A matter of root-associated microbiota and climate change[J],2024,926.
APA	Lasa, Ana V.,Fernandez-Gonzalez, Antonio Jose,Villadas, Pablo J.,Mercado-Blanco, Jesus,Perez-Luque, Antonio J.,&Fernandez-Lopez, Manuel.(2024).Mediterranean pine forest decline: A matter of root-associated microbiota and climate change.SCIENCE OF THE TOTAL ENVIRONMENT,926.
MLA	Lasa, Ana V.,et al."Mediterranean pine forest decline: A matter of root-associated microbiota and climate change".SCIENCE OF THE TOTAL ENVIRONMENT 926(2024).