Growth retardation of plants transformed by overexpression of NtFtsZ1-2 in tobacco

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dc.contributor.authorWon Joong Chung-
dc.contributor.authorSuk Won Jeong-
dc.contributor.authorSung Ran Min-
dc.contributor.authorO J Yoo-
dc.contributor.authorJang Ryol Liu-
dc.description.abstractWe transformed tobacco plants (Mcotiana tabacum L, Xanthi) by introducing a sense construct ofNtFtsZ1-2. This tobacco nuclear gene encodes a chloroplast-localized homologue of FtsZ, the bacterial cell-division protein. The overexpressing plants contained enlarged chloroplasts in their leaf mesophyll cells. In the T1 progeny, we observed three different phenotypes: 1 ) plants with cells containing many small chloroplasts, which was the same as for wild-type plants; 2) plants in which the celts contained one to three enlarged chloroplasts (severe type); and 3) plants whose cells contained a combination of many small chloroplasts and one to three enlarged chloroplasts (intermediate type). The outward appearance of the severe and intermediate types of transgenic plants did not differ noticeably from the wild-types. However, the severe-type plants were most retarded in their growth under both high- and low-light conditions, followed by the intermediate-types. Under medium levels of light, the two types of transgenic plants exhibited growth rates comparable to that of the wild types. Based on the overall results, we suggest that many small chloroplasts, rather than a few large chloroplasts, are required for efficient use of light energy in the mesophyll cells.-
dc.titleGrowth retardation of plants transformed by overexpression of NtFtsZ1-2 in tobacco-
dc.title.alternativeGrowth retardation of plants transformed by overexpression of NtFtsZ1-2 in tobacco-
dc.citation.titleJournal of Plant Biology-
dc.contributor.affiliatedAuthorWon Joong Chung-
dc.contributor.affiliatedAuthorSuk Won Jeong-
dc.contributor.affiliatedAuthorSung Ran Min-
dc.contributor.affiliatedAuthorJang Ryol Liu-
dc.identifier.bibliographicCitationJournal of Plant Biology, vol. 45, no. 2, pp. 107-111-
dc.subject.keywordchloroplast division-
dc.subject.keywordchloroplast number and size-
dc.subject.keywordFtsZ overexpression-
dc.subject.keywordplant growth-
dc.subject.localchloroplast division-
dc.subject.localchloroplast number and size-
dc.subject.localFtsZ overexpression-
dc.subject.localplant growth-
dc.subject.localPlant growth-
Appears in Collections:
Synthetic Biology and Bioengineering Research Institute > Cell Factory Research Center > 1. Journal Articles
Division of Research on National Challenges > Plant Systems Engineering Research > 1. Journal Articles
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