(The) role of REDUCED GRAVITROPIC 1 in regulating gravitropic responses in plants by forming starch granules애기장대 RGV1에 의한 녹말체 형성 및 굴중성 조절 메커니즘 연구

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 171
  • Download : 0
DC FieldValueLanguage
dc.contributor.advisorChoi, Giltsu-
dc.contributor.advisor최길주-
dc.contributor.authorSong, Kijong-
dc.date.accessioned2022-04-15T01:54:12Z-
dc.date.available2022-04-15T01:54:12Z-
dc.date.issued2021-
dc.identifier.urihttp://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=962393&flag=dissertationen_US
dc.identifier.urihttp://hdl.handle.net/10203/294628-
dc.description.abstractIn the dark, plants display hypocotyl negative gravitropism to reach the light. Plants red/far-red light receptor, phytochrome is known to regulate hypocotyl negative gravitropism. In light condition, activated phytochrome inhibits hypocotyl gravitropism by inhibiting starch-filled amyloplasts, which are important for gravity sensing in plants. In the dark, phytochrome is inactivated therefore, downstream transcription factor PIF1 maintains starchfilled amyloplasts and promotes hypocotyl gravitropism. To identify how PIF1 regulates amyloplast formation and hypocotyl gravitropism, we performed EMS mutagenesis, and isolated mutants which showed disrupted gravitropism. Among them, those that not only showed disrupted gravitropism but also had defect in amyloplast formation were named as rgv1. Through the whole-genome sequencing, RGV1 was allelic to previously reported ESV1 which is known to regulate starch accumulation at dawn. RGV1 exists in various starch-synthesizing organisms including rice, potato and even liverwort. We figured out these orthologs are functionally conserved. Also, in rice rgv1 mutant, starch accumulation in leaves, granule, and root was significantly decreased.-
dc.languageeng-
dc.title(The) role of REDUCED GRAVITROPIC 1 in regulating gravitropic responses in plants by forming starch granules-
dc.title.alternative애기장대 RGV1에 의한 녹말체 형성 및 굴중성 조절 메커니즘 연구-
dc.identifier.CNRN325007-
dc.description.department한국과학기술원 :생명과학과,-
dc.description.isOpenAccess학위논문(박사) - 한국과학기술원 : 생명과학과, 2021.8,[iv, 90 p. :]-
dc.publisher.country한국과학기술원-
dc.type.journalArticleThesis(Ph.D)-
dc.contributor.alternativeauthor송기종-
dc.subject.keywordAuthorHypocotyl negative gravitropism▼aPhytochrome▼aPIF1▼aAmyloplast▼aEMS mutagenesis▼aRGV1-
dc.subject.keywordAuthor굴중성▼a피토크롬▼aPIF1▼a녹말체▼a돌연변이 유도▼aRGV1-
Appears in Collection
BS-Theses_Ph.D.(박사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0