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Shi Fachao,Dong Yijie,Wang Min,Qiu Dewen 한국식물생명공학회 2020 Plant biotechnology reports Vol.14 No.3
Drought stress, as a key negative factor, could result in the reduction of yield and quality in rice. Myo-inositol oxygenase (MIOX), a unique monooxygenase, exerts an essential role in plant drought resistance. To investigate the function of the OsMIOX gene in drought process, a transcriptomic profile between OsMIOX-overexpressing (OE) plants and wild-type (WT) was performed by RNA-sequencing in rice. Under drought stress, a total of 23 million high-quality reads, assembled into 28,552 unigenes, were generated and 743 genes (534 up-regulated and 209 down-regulated) were significantly differentially expressed between OE plants and WT. These detected genes were mainly associated with plant hormones transduction and sugar metabolism. Interestingly, several transcription factors (TFs) were prominently identified in OE lines. A significant positive correlation between RNA-Seq data and qRT-PCR results was identified. In all, our results could partially provide relatively valuable clues in identifying candidate genes involved in drought-stress resistance and elucidating basis theory underlying the role of OsMIOX in drought resistance.
Jatoi, Ghulam Hussain,Lihua, Guo,Xiufen, Yang,Gadhi, Muswar Ali,Keerio, Azhar Uddin,Abdulle, Yusuf Ali,Qiu, Dewen The Korean Society of Plant Pathology 2019 Plant Pathology Journal Vol.35 No.3
Here, we reported a novel secreted protein elicitor PeBL2 from Brevibacillus laterosporus A60, which can induce hypersensitive response in tobacco (Nicotiana benthamiana). The ion-exchange chromatography, high-performance liquid chromatography (HPLC) and mass spectrometry were performed for identification of protein elicitor. The 471 bp PeBL2 gene produces a 17.22 kDa protein with 156 amino acids containing an 84-residue signal peptide. Consistent with endogenous protein, the recombinant protein expressed in Escherichia coli induced the typical hypersensitive response (HR) and necrosis in tobacco leaves. Additionally, PeBL2 also triggered early defensive response of generation of reactive oxygen species ($H_2O_2$ and $O_2{^-}$) and systemic resistance against of B. cinerea. Our findings shed new light on a novel strategy for biocontrol using B. laterosporus A60.
Ghulam Hussain Jatoi,Guo Lihua,Yang Xiufen,Muswar Ali Gadhi,Azhar Uddin Keerio,Yusuf Ali Abdulle,Dewen Qiu 한국식물병리학회 2019 Plant Pathology Journal Vol.35 No.3
Here, we reported a novel secreted protein elicitor PeBL2 from Brevibacillus laterosporus A60, which can induce hypersensitive response in tobacco (Nicotiana benthamiana). The ion-exchange chromatography, high-performance liquid chromatography (HPLC) and mass spectrometry were performed for identification of protein elicitor. The 471 bp PeBL2 gene produces a 17.22 kDa protein with 156 amino acids containing an 84-residue signal peptide. Consistent with endogenous protein, the recombinant protein expressed in Escherichia coli induced the typical hypersensitive response (HR) and necrosis in tobacco leaves. Additionally, PeBL2 also triggered early defensive response of generation of reactive oxygen species (H2O2 and O2 -) and systemic resistance against of B. cinerea. Our findings shed new light on a novel strategy for biocontrol using B. laterosporus A60.