干旱区生态环境知识资源中心(Arid): Physiological Responses and Gene Expression Patterns in Open-Pollinated Seedlings of a Pummelo-Mandarin Hybrid Rootstock Exposed to Salt Stress and Huanglongbing

Arid

DOI	10.3390/plants10071439
	Physiological Responses and Gene Expression Patterns in Open-Pollinated Seedlings of a Pummelo-Mandarin Hybrid Rootstock Exposed to Salt Stress and Huanglongbing
	Mahmoud, Lamiaa M.; Huyck, Patrick J.; Vincent, Christopher I.; Gmitter, Frederick G.; Grosser, Jude W.; Dutt, Manjul
通讯作者	Dutt, M (corresponding author), Univ Florida, Citrus Res & Educ Ctr, Lake Alfred, FL 33850 USA.
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2021
卷号	10 期号:7
英文摘要	Huanglongbing (HLB), caused by the phloem-limited bacterium Candidatus Liberibacter asiaticus (CaLas), is the primary biotic stress causing significant economic damage to the global citrus industry. Among the abiotic stresses, salinity affects citrus production worldwide, especially in arid and coastal regions. In this study, we evaluated open-pollinated seedlings of the S10 (a diploid rootstock produced from a cross between two siblings of the Hirado Buntan Pink pummelo (Citrus maxima (Burm.) Merr.) with the Shekwasha mandarin (Citrus reticulata Blanco)) for their ability to tolerate HLB and salinity stresses. In a greenhouse study, 'Valencia' sweet orange (either HLB-positive or negative) was grafted onto six clonally propagated lines generated from the screened seedlings in the greenhouse and the trees were irrigated with 150 mM NaCl after eight months of successful grafting and detection of CaLas in the leaf petioles. Cleopatra mandarin was used as a salt-tolerant and HLB-sensitive rootstock control. CaLas infection was monitored using a quantitative polymerase chain reaction before and after NaCl treatments. Following three months of NaCl treatment, 'Valencia' leaves on the S10 rootstock seedlings recorded lower levels of chlorophyll content compared to Cleopatra under similar conditions. Malondialdehyde content was higher in HLB-infected 'Valencia' grafted onto Cleopatra than in the S10 lines. Several plant defense-related genes were significantly upregulated in the S10 lines. Antioxidant and Na+ co-transporter genes were differentially regulated in these lines. Based on our results, selected S10 lines have potential as salt-tolerant rootstocks of 'Valencia' sweet orange under endemic HLB conditions. However, it is necessary to propagate selected lines through tissue culture or cuttings because of the high percentage of zygotic seedlings derived from S10.
英文关键词	Candidatus Liberibacter asiaticus (CaLas) salt stress citrus rootstocks genetic improvement
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000676982200001
WOS关键词	PHENYLALANINE AMMONIA-LYASE ; TRIFOLIATA L. RAF. ; OXIDATIVE STRESS ; ARABIDOPSIS-THALIANA ; SIGNAL-TRANSDUCTION ; SALINITY TOLERANCE ; PROTOPLAST FUSION ; ABIOTIC STRESSES ; VALENCIA ORANGE ; FRUIT-QUALITY
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368636
作者单位	[Mahmoud, Lamiaa M.; Huyck, Patrick J.; Vincent, Christopher I.; Gmitter, Frederick G.; Grosser, Jude W.; Dutt, Manjul] Univ Florida, Citrus Res & Educ Ctr, Lake Alfred, FL 33850 USA; [Mahmoud, Lamiaa M.] Mansoura Univ, Fac Agr, Pomol Dept, Mansoura 35516, Egypt
推荐引用方式 GB/T 7714	Mahmoud, Lamiaa M.,Huyck, Patrick J.,Vincent, Christopher I.,et al. Physiological Responses and Gene Expression Patterns in Open-Pollinated Seedlings of a Pummelo-Mandarin Hybrid Rootstock Exposed to Salt Stress and Huanglongbing[J],2021,10(7).
APA	Mahmoud, Lamiaa M.,Huyck, Patrick J.,Vincent, Christopher I.,Gmitter, Frederick G.,Grosser, Jude W.,&Dutt, Manjul.(2021).Physiological Responses and Gene Expression Patterns in Open-Pollinated Seedlings of a Pummelo-Mandarin Hybrid Rootstock Exposed to Salt Stress and Huanglongbing.PLANTS-BASEL,10(7).
MLA	Mahmoud, Lamiaa M.,et al."Physiological Responses and Gene Expression Patterns in Open-Pollinated Seedlings of a Pummelo-Mandarin Hybrid Rootstock Exposed to Salt Stress and Huanglongbing".PLANTS-BASEL 10.7(2021).