气候变化领域集成服务门户(CCPortal): Impact of a drier climate on the exotic pathogen Phytophthora cinnamomi in Mediterranean forests differing in soil properties and species composition

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DOI	10.1016/j.foreco.2024.121721
	Impact of a drier climate on the exotic pathogen Phytophthora cinnamomi in Mediterranean forests differing in soil properties and species composition
	Serrano, Maria Socorro; Villa-Sanabria, Elena; Homet, Pablo; Gutierrez, Eduardo; Gomez-Aparicio, Lorena
发表日期	2024
ISSN	0378-1127
EISSN	1872-7042
起始页码	556
卷号	556
英文摘要	As climate becomes drier, plant disease dynamics will change. However, there is a lack of experimental data exploring how climate change scenarios will modify the abundance of aggressive pathogens threating forest ecosystems. In this study, we aimed to fill this gap by analysing the effect of a drier climate on the population dynamics of Phytophthora cinnamomi, one of the 100 worst invasive alien species on earth. The study was conducted over 5 years (2016-2020) in two Mediterranean mixed forests of Southern Spain invaded by the pathogen. The two forests varied in soil properties (texture) and species composition (closed forest of Quercus suber and Quercus canariensis vs. open woodland of Quercus suber and Olea europaea). The abundance of P. cinnamomi resistance spores in the forest soil was analysed every spring taking advantage of rainfall exclusion infrastructures that removed 30 % of the rainfall, simulating predicted climate change scenarios for the Mediterranean basin. Results showed that P. cinnamomi abundance in the forest soil was influenced by both soil texture and tree species composition, being lower in sandy soils and under Olea europaea compared to Quercus species. More importantly, we found a general negative effect of the rainfall exclusion treatment on pathogen abundance across soils and species. The longitudinal assessment of P. cinnamomi abundance in the soil also revealed that the pathogen had the capacity to survive at low density during dry years and increase its population in response to subsequent wet years. Overall, our findings suggest that the aridification of the Mediterranean climate might imply a reduction in average pathogen abundance, but that it would not be enough to preclude peaks of high pathogen abundance in response to the extreme heavy rains and floods also predicted by climate change models.
英文关键词	Climate change; Oak forests; Olea europaea var. sylvestris; Quercus suber; Quercus canariensis; Soil-borne pathogens
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:001179713900001
来源期刊	FOREST ECOLOGY AND MANAGEMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/308999
作者单位	Universidad de Cordoba; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Instituto de Recursos Naturales y Agrobiologia de Sevilla (IRNAS)
推荐引用方式 GB/T 7714	Serrano, Maria Socorro,Villa-Sanabria, Elena,Homet, Pablo,et al. Impact of a drier climate on the exotic pathogen Phytophthora cinnamomi in Mediterranean forests differing in soil properties and species composition[J],2024,556.
APA	Serrano, Maria Socorro,Villa-Sanabria, Elena,Homet, Pablo,Gutierrez, Eduardo,&Gomez-Aparicio, Lorena.(2024).Impact of a drier climate on the exotic pathogen Phytophthora cinnamomi in Mediterranean forests differing in soil properties and species composition.FOREST ECOLOGY AND MANAGEMENT,556.
MLA	Serrano, Maria Socorro,et al."Impact of a drier climate on the exotic pathogen Phytophthora cinnamomi in Mediterranean forests differing in soil properties and species composition".FOREST ECOLOGY AND MANAGEMENT 556(2024).