气候变化领域集成服务门户(CCPortal): Physiological and hormonal responses of drought-stressed Eucalyptus seedlings infected with Neofusicoccum kwambonambiense

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DOI	10.1111/ppa.13857
	Physiological and hormonal responses of drought-stressed Eucalyptus seedlings infected with Neofusicoccum kwambonambiense
	Santos, Beatriz; Pinto, Gloria; Berenguer, Helder; Correia, Barbara; Amaral, Joana; Gomez-Cadenas, Aurelio; Alves, Artur
发表日期	2024
ISSN	0032-0862
EISSN	1365-3059
起始页码	73
结束页码	4
卷号	73 期号:4
英文摘要	The contribution of Eucalyptus globulus plantations to timber production for pulp, paper and energy production may be hampered by climate change. It is expected that Eucalyptus productivity may be affected through drought stress and changes to both pathogen distribution/pathogenicity and host-pathogen interactions. The impact of the fungal pathogen Neofusicoccum kwambonambiense on E. globulus, causing cankers and dieback, is well known but the impact of drought on disease development is still understudied. Our aim was to study the effect of drought on N. kwambonambiense infection by inoculating E. globulus plants under well-watered conditions or with water limitation. Non-infected plants for both water regimes were also analysed. Morphophysiological, biochemical and hormonal parameters were assessed 65 days post-inoculation. Inoculation under conditions of water stress decreased water potential and photosynthetic efficiency and increased abscisic acid, jasmonic acid and lipid peroxidation. Water-stressed infected plants also showed higher fungal colonization and external lesion length in comparison with well-watered inoculated plants. Our results indicate that drought increased E. globulus predisposition to N. kwambonambiense infection and may also have promoted a change in the lifestyle of the fungus. Identifying host-pathogen interaction responses under different stress conditions is necessary to provide knowledge for decision-making in the management of forest systems in general and of Eucalyptus production in particular.
英文关键词	forest species; pathogenicity; plant performance; predisposition; stress combinations; water deficit
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences
WOS记录号	WOS:001141811900001
来源期刊	PLANT PATHOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296956
作者单位	Universidade de Aveiro; Universitat Jaume I
推荐引用方式 GB/T 7714	Santos, Beatriz,Pinto, Gloria,Berenguer, Helder,et al. Physiological and hormonal responses of drought-stressed Eucalyptus seedlings infected with Neofusicoccum kwambonambiense[J],2024,73(4).
APA	Santos, Beatriz.,Pinto, Gloria.,Berenguer, Helder.,Correia, Barbara.,Amaral, Joana.,...&Alves, Artur.(2024).Physiological and hormonal responses of drought-stressed Eucalyptus seedlings infected with Neofusicoccum kwambonambiense.PLANT PATHOLOGY,73(4).
MLA	Santos, Beatriz,et al."Physiological and hormonal responses of drought-stressed Eucalyptus seedlings infected with Neofusicoccum kwambonambiense".PLANT PATHOLOGY 73.4(2024).