Ectopic Expression of Pineapple Actin-Related Protein 6 (AcARP6) Regulates Flowering and Stress Responses in Arabidopsis
文献类型： 外文期刊
作者： Jakada, Bello Hassan 1 ; Fakher, Beenish 1 ; Yao, Li-Ang 1 ; Wang, Xiaomei 3 ; Aslam, Mohammad 1 ; Qin, Yuan 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Coll Life Sci, Fujian Prov Key Lab Haixia Appl Plant Syst Biol, Key Lab Genet Breeding & Multiple Utilizat Crops,M, Fuzhou 350002, Fujian, Peoples R China
2.Guangxi Univ, Coll Agr, Guangxi Key Lab Sugarcane Biol, State Key Lab Conservat & Utilizat Subtrop Agrobio, Nanning 530004, Peoples R China
3.Guangxi Acad Agr Sci, Hort Res Inst, Nanning Invest Stn South Subtrop Fruit Trees, Minist Agr, Nanning 530007, Peoples R China
4.Fujian Agr & Forestry Univ, Pingtan Sci & Technol Res Inst, Pingtan 350400, Peoples R China
关键词： SWR1-C; Ananas comosus; ARP6; Biotic stress; Abiotic stress; Flowering
期刊名称：JOURNAL OF PLANT GROWTH REGULATION （ 影响因子：4.64； 五年影响因子：4.469 ）
ISSN： 0721-7595
年卷期：
页码：
收录情况： SCI
摘要： SWR1 chromatin remodeling complex (SWR1-C) plays a crucial role in gene regulation during growth and development of eukaryotes. ACTIN-RELATED PROTEIN 6 (ARP6), an essential subunit of SWR1-C, is implicated in flowering and stress response. However, the functions of pineapple ARP6 have not been investigated, which limits its potential use in molecular breeding. Here, pineapple ARP6 is functionally characterized and its role in flowering, salt stress, drought, nutrient deficiency and immunity is verified. Phylogenetic analysis showed that AcARP6 is homologous to ARP6 of rice and Arabidopsis. Expression analysis revealed that AcARP6 gets induced by salt, osmotic and nutrient deficiency. Additionally, ectopic expression of AcARP6 in Arabidopsis delayed flowering and increased tolerance to salinity, drought and nutrient deficiency, but displayed sensitivity against Sclerotinia sclerotiorum infection. Furthermore, AcARP6 complemented the phenotypic defects of the arp6 mutation in Arabidopsis. These results provide evidence for the involvement of AcARP6 in multiple stress responses and advocate that AcARP6 could be used as a potential candidate gene for improving tolerance against abiotic stresses.
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