干旱区生态环境知识资源中心(Arid): Endophytic bacteria of desert cactus (Euphorbia trigonas Mill) confer drought tolerance and induce growth promotion in tomato (Solanum lycopersicum L.)

Arid

DOI	10.1016/j.micres.2019.126302
	Endophytic bacteria of desert cactus (Euphorbia trigonas Mill) confer drought tolerance and induce growth promotion in tomato (Solanum lycopersicum L.)
	Eke, Pierre; Kumar, Aundy; Sahu, Kuleshwar Prasad; Wakam, Louise Nana; Sheoran, Neelam; Ashajyothi, Mushineni; Patel, Asharani; Fekam, Fabrice Boyom
通讯作者	Kumar, A (corresponding author), Indian Agr Res Inst, ICAR, New Delhi, India.
来源期刊	MICROBIOLOGICAL RESEARCH
ISSN	0944-5013
EISSN	1618-0623
出版年	2019
卷号	228
英文摘要	Endophytic bacteria isolated from cactus were characterized and assessed for their capability to induce drought tolerance and growth promotion in tomato. A total of 191-bacteria representing 13-genera and 18-species were isolated from wild cactus, Euphorbia trigonas. Bacillus (58), Lysinibacillus (36), Enterobacter (29), Stenotrophomonas (18), Lelliottia (12) and Pseudomonas (12) were the most represented genera. 16S rDNA sequence ( > 1400-bp) comparison placed the bacterial isolates with Bacillus xiamenensis; Bacillus megaterium; Bacillus cereus; Bacillus amyloliquefaciens; Bacillus velezensis; Brevibacillus brevis; Lysinibacillus fusifonnis; Enterobacter cloacae; Lelliottia nimipressuralis; Proteus penneri; Sphingobacterium multivorwn; Klebsiella pneumoniae; Pseudomonas putida; Pseudomonas aeruginosa; Stenotrophomonas maltophilia; Citrobacter freundii; Chryseobacterium indologenes and Paracoccus sp. Bacillus xiamenensis was identified for the first time as plant endophyte. Upon bacterization, the endophytes triggered germination and growth promotion in tomato as indicated by 118 % and 52 % more root-biomass under drought-free and drought-induced conditions, respectively. Bacillus amylolique-faciens CBa_RA37 and B. megaterium RR10 displayed broad spectrum endophytism in tomato. Bacterization of tomato with cactus endophyte showed altered oxidative status, stomatal and photosystem II functioning, internal leaf temperature and relative water content suggestive of physiological de-stressing from moisture stress. Activity of oxidative stress enzymes such as guaiacol peroxidase and catalase was also indicative of endophyte assisted de-stressing of tomato. Re-irrigation on 20-days of drought infliction showed 86.9% recovery of B. amyloliquefaciens CBa_RA37 primed tomato when non-primed plantlets succumbed. The cactus endophytic bacterial strain B. amyloliquefaciens CBa_RA37 showed promise for low-cost, efficient and environmentally friendly bio-inoculant technology to mitigate drought in arid zones of Asian and African continents.
英文关键词	Bacterial endophytes Cactus Drought tolerance Growth promotion Tomato
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000504948400005
WOS关键词	STRESS TOLERANCE ; BIOCONTROL AGENT ; PLANT-RESPONSES ; WATER-STRESS ; IDENTIFICATION ; RHIZOBACTERIA ; ROOT ; MAIZE ; COLONIZATION ; ENHANCEMENT
WOS类目	Microbiology
WOS研究方向	Microbiology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369898
作者单位	[Eke, Pierre; Wakam, Louise Nana; Fekam, Fabrice Boyom] Univ Yaounde I, Fac Sci, Dept Biochem, Lab Phytobiochem & Med Plants Studies,Antimicrobi, POB 812, Yaounde, Cameroon; [Kumar, Aundy; Sahu, Kuleshwar Prasad; Sheoran, Neelam; Ashajyothi, Mushineni; Patel, Asharani] Indian Agr Res Inst, ICAR, Div Plant Pathol, New Delhi, India; [Wakam, Louise Nana] Biotechnol Ctr, Dept Microbiol, Lab Soil Microbiol, Yaounde, Cameroon
推荐引用方式 GB/T 7714	Eke, Pierre,Kumar, Aundy,Sahu, Kuleshwar Prasad,et al. Endophytic bacteria of desert cactus (Euphorbia trigonas Mill) confer drought tolerance and induce growth promotion in tomato (Solanum lycopersicum L.)[J],2019,228.
APA	Eke, Pierre.,Kumar, Aundy.,Sahu, Kuleshwar Prasad.,Wakam, Louise Nana.,Sheoran, Neelam.,...&Fekam, Fabrice Boyom.(2019).Endophytic bacteria of desert cactus (Euphorbia trigonas Mill) confer drought tolerance and induce growth promotion in tomato (Solanum lycopersicum L.).MICROBIOLOGICAL RESEARCH,228.
MLA	Eke, Pierre,et al."Endophytic bacteria of desert cactus (Euphorbia trigonas Mill) confer drought tolerance and induce growth promotion in tomato (Solanum lycopersicum L.)".MICROBIOLOGICAL RESEARCH 228(2019).