http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Murugesan Chandrasekaran,Dharaneedharan Subramanian,Ee Yoon,Taehoon Kwon,천세철 한국식물병리학회 2016 Plant Pathology Journal Vol.32 No.3
Biological control agents (BCAs) from different micro-bial taxa are increasingly used to control bacterial wilt caused by Ralstonia solanacearum. However, a quan-titative research synthesis has not been conducted on the role of BCAs in disease suppression. Therefore, the present study aimed to meta-analyze the impacts of BCAs on both Ralstonia wilt disease suppression and plant (host) growth promotion. The analysis showed that the extent of disease suppression by BCAs varied widely among studies, with effect size (log response ra-tio) ranging from –2.84 to 2.13. The disease incidence and severity were significantly decreased on average by 53.7% and 49.3%, respectively. BCAs inocula-tion also signifiantly increased fresh and dry weight by 34.4% and 36.1%, respectively on average. Also, BCAs inoculation significantly increased plant yield by 66%. Mean effect sizes for genus Pseudomonas sp. as BCAs were higher than for genus Bacillus spp. Among antagonists tested, P. fluorescens, P. putida, B. cereus, B. subtilis and B. amyloliquefaciens were found to be more effective in general for disease re-duction. Across studies, highest disease control was found for P. fluoescens, annual plants, co-inoculation with more than one BCA, soil drench and greenhouse condition were found to be essential in understanding plant responses to R. solanacearum. Our results sug-gest that more efforts should be devoted to harnessing the potential beneficial effects of these antagonists, not just for plant growth promoting traits but also in mode of applications, BCAs formulations and their fieldstudies should be considered in the future for R. solanacearum wilt disease suppression.
Md. Ashaduzzaman Siddikee,Subbiah Sundaram,MURUGESANCHANDRASEKARAN,김기윤,셀바,사동민 한국응용생명화학회 2015 Applied Biological Chemistry (Appl Biol Chem) Vol.58 No.2
Amelioration of salt stress effect on canola seed germination was investigated using 1-aminocyclopropane- 1-carboxylic acid (ACC) deaminase-producing plant growth promoting halotolerant bacteria. NaCl at 120 mM concentration reduced canola seed germination by 50 %. The inoculation of ACC deaminase-producing halotolerant Brevibacterium epidermidis RS15 and Bacillus aryabhattai RS341 at 120 mM NaCl significantly increased the seed germination with decreased seed ACC content. Notably, the hydrolytic enzymes activities like amylase, invertase, and protease also increased due to inoculation of RS15 and RS341 compared to uninoculated salt stress imposed germinating canola seeds. Ethylene emission of salt stress exposed eight-day-old canola seedlings was reduced by 35.4 and 41.1 % compared to uninoculated salt stressed control due to respective inoculation of RS341 and RS15. The amelioration of salt stress inhibitory effect on the canola seed germination was attributed to the inoculation of ACC deaminase-producing halotolerant bacteria modulating ethylene emission and inducing hydrolytic enzymes.