Sugarcane metabolites produced in CO2-rich temporary immersion bioreactors (TIBs) induce tomato (Solanum lycopersicum) resistance against bacterial wilt (Ralstonia solanacearum)
文献类型: 外文期刊
作者: Yang, Liu 2 ; Zambrano, Yumarys 1 ; Hu, Chun-Jin 2 ; Carmona, Elva R. 1 ; Bernal, Aydiloide 1 ; Perez, Alicia 1 ; Zaya 1 ;
作者机构: 1.Inst Sugarcane Res, Havana 19390, Cuba
2.Guangxi Acad Agr Sci, Nanning 530007, Peoples R China
3.Calesa Grp, Biotechnol & Res Lab, Aguadulce, Panama
关键词: Phenylpropanoid;Temporary immersion bioreactors (TIBs);Induced disease resistance;Sugarcane
期刊名称:IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-PLANT ( 影响因子:2.252; 五年影响因子:2.139 )
ISSN:
年卷期:
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收录情况: SCI
摘要: The production of phenolic metabolites has been optimized in parallel to sugarcane micropropagation in temporary immersion bioreactors (TIBs). Culturing micropropagated plants in 0.4% CO2-rich air induced their photosynthetic activity by enhancing the change from a heterotrophic to a photomixotrophic metabolic stage. Under 0.4% CO2 enrichment, the transcript levels of both phenylalanine ammonia-lyase (PAL EF189195) and ribulose-1,5-biphosphate carboxylase/oxygenase (Rubisco CF576750) increased and were correlated to a 4.6- and 6.3-fold increase in the phenolic levels when plants were multiplied in 20 or 30 g/l sucrose, respectively. A novel application of plant phenolic metabolites as elicitors of resistance to tomato bacterial wilt in the Solanum lycopersicum-Ralstonia solanacearum pathosystem has been identified. The culture media was collected, and the phenolics were sprayed onto tomato plants infected with R. solanacearum, eliciting and/or maintaining an early defense signaling mechanism that resulted in the protection of the plant against the tomato bacterial wilt disease. RT-PCR analyses confirmed that selected genes from defense-related pathways were differentially expressed between plants treated with sugarcane metabolites, non-treated pathogen-free plants, and non-treated plants inoculated with R. solanacearum.
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