Effects of transgenic poplars expressing increased levels of cellular cytokinin on rhizosphere microbial communities

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dc.contributor.authorKi Jung Nam-
dc.contributor.authorDo Young Kim-
dc.contributor.authorKyong Hee Nam-
dc.contributor.authorIn Soon Pack-
dc.contributor.authorJung Ho Park-
dc.contributor.authorSoon Chun Jeong-
dc.contributor.authorY I Choi-
dc.contributor.authorE W Noh-
dc.contributor.authorChang-Gi Kim-
dc.date.accessioned2017-04-19T09:54:40Z-
dc.date.available2017-04-19T09:54:40Z-
dc.date.issued2014-
dc.identifier.issn1164-5563-
dc.identifier.uri10.1016/j.ejsobi.2014.06.001ko
dc.identifier.urihttps://oak.kribb.re.kr/handle/201005/12056-
dc.description.abstractConsiderable effort has been made in biotechnology to increase plant biomass. Altering cellular levels of plant hormones, including cytokinin, by genetic modification, has been one way to achieve the goal as it is involved in a variety of processes related to plant growth and development. However, the alteration inevitably may change physiological and biochemical characteristics of plants, and thus could affect the relationship between plants and other organisms interacting with the plants such as microorganisms inhabiting in the rhizosphere. To determine if these indirect effects on rhizosphere microorganisms, mediated by hormonal changes in plants, do occur, we investigated the microbial biomass and community structure associated with transgenic Populus trees with altered cellular cytokinin levels, using phospholipid fatty acid (PLFA) analysis. Three transgenic lines expressing increased levels of cellular cytokinin (T1403, T1410, and T1413) and their non-transgenic isoline (BH) were planted at three locations (Suwon, Cheongwon, and Jinju) in 2011. Soil samples were collected near the base of each tree monthly, from May to September. Indicator PLFAs were utilized to calculate the microbial (bacterial and fungal) biomass, and PLFA profiles were developed to characterize the structure of those communities. Over the growing season, soils from Cheongwon and Jinju had similar microbial biomasses (PLFAs indicating functional groups) whereas, at Suwon, the biomass associated with the rhizosphere of Line T1413 was significantly different from that of the other transgenics and the control. At Cheongwon and Jinju, the structure of the rhizosphere microbial communities differed significantly between Lines T1403 or T1410 and BH, but only in May and June. By contrast, those structures were similar in all sampling months for each line at Suwon. Our results indicate that the influence resulting from genetic modification of the poplar trees on the rhizosphere microbial community is only temporary and inconsistent depending upon location and genetic line.-
dc.publisherElsevier-
dc.titleEffects of transgenic poplars expressing increased levels of cellular cytokinin on rhizosphere microbial communities-
dc.title.alternativeEffects of transgenic poplars expressing increased levels of cellular cytokinin on rhizosphere microbial communities-
dc.typeArticle-
dc.citation.titleEuropean Journal of Soil Biology-
dc.citation.number1-
dc.citation.endPage82-
dc.citation.startPage78-
dc.citation.volume63-
dc.contributor.affiliatedAuthorKi Jung Nam-
dc.contributor.affiliatedAuthorDo Young Kim-
dc.contributor.affiliatedAuthorKyong Hee Nam-
dc.contributor.affiliatedAuthorIn Soon Pack-
dc.contributor.affiliatedAuthorJung Ho Park-
dc.contributor.affiliatedAuthorSoon Chun Jeong-
dc.contributor.affiliatedAuthorChang-Gi Kim-
dc.contributor.alternativeName남기정-
dc.contributor.alternativeName김도영-
dc.contributor.alternativeName남경희-
dc.contributor.alternativeName백인순-
dc.contributor.alternativeName박정호-
dc.contributor.alternativeName정순천-
dc.contributor.alternativeName최영임-
dc.contributor.alternativeName노은운-
dc.contributor.alternativeName김창기-
dc.identifier.bibliographicCitationEuropean Journal of Soil Biology, vol. 63, no. 1, pp. 78-82-
dc.identifier.doi10.1016/j.ejsobi.2014.06.001-
dc.subject.keywordGenetically modified tree-
dc.subject.keywordPhytohormone-
dc.subject.keywordPLFA (phospholipid fatty acid)-
dc.subject.keywordRhizosphere-
dc.subject.keywordSoil microorganisms-
dc.subject.localGenetically modified tree-
dc.subject.localPhytohormones-
dc.subject.localPhytohormone-
dc.subject.localPLFA-
dc.subject.localPLFA (phospholipid fatty acid)-
dc.subject.localRhizosphere-
dc.subject.localrhizosphere-
dc.subject.localSoil microorganisms-
dc.subject.localsoil microorganism-
dc.description.journalClassY-
Appears in Collections:
Division of Bio Technology Innovation > Bio-Evaluation Center > 1. Journal Articles
Ochang Branch Institute > 1. Journal Articles
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