Plants are capable of orienting their root growth towards gravity in a process termed gravitropism, which is necessary for roots to grow into soil, for water and nutrient acquisition and to anchor plants. Here we show that root gravitropism depends on the novel protein, NEGATIVE GRAVITROPIC ...
Positive gravitropism: As the name implies, this form of gravitropism is characterized by a response toward the direction of gravity. This can be observed in the ability of plant roots to grow downwards, into the soil, in the direction of the Earth's gravity. Sometimes, positive phototropism ...
The arf7 arf19 double mutant shows a more visible auxin-related phenotype not observed in arf7 or arf19 single mutants, with abolished lateral root development and hypocotyl gravitropism19,28. In tomato, 22 putative functional ARF genes have been identified29. ARF7 and ARF9 affect fruit ...
calciumsignalingisinvolvedinnegativephototropismofriceseminal 系统标签: phototropismcalciumrootsseminalricesignaling RiceScience,2014,21(1):39−46 Copyright©2014,ChinaNationalRiceResearchInstitute PublishedbyElsevierBV.Allrightsreserved DOI:10.1016/S1672-6308(13)60162-6 CalciumSignalingisInvolvedinNegativePhototr...
3(81:.Ill、一-_,Il、一～Au鲴lArabidopsisPhytochromeDIsInvolvedinRedLight—InducedNegativeGravitropismofHypocotylesLIJian-ping’一,HOUPei,ZHENGXu一,SONGMei—fang,SULiangandYANGJian—pingInstituteofCropSciences,ChineseAcademyofAgriculturalSciences,Beijing100081,P.RChina。InstituteofNuclearandBiotechnology,Xinjiang...
Negative gravitropism in plant roots. Liangfa Ge,Rujin Chen. Nature Plants . 2016Ge, L., and Chen, R. (2016). Negative gravitropism in plant roots. Nat. Plants 2, 16155. doi: 10.1038/nplants.2016.155Ge, L. & Chen, R. Negative gravitropism in plant roots. Nat Plants 2, 16155, ...
(ASC-2013-0382)Phytochrome D is Involved in Red Light-Induced Negative Gravitropism in Arabidopsis thalianaThe phytochrome gene family, which in most dicot plants consists of phytochromes A-E (phyA-phyE), regulates plant responses to ambient light environments. PhyA and phyB have been characterized ...
In Arabidopsis gravitropism is affected by two antagonistically interacting proteins, AGD12 (ADP㏑IBOSYLATION FACTOR GTPase〢CTIVATING PROTEIN) and EHB1 (ENHANCED BENDING 1). While AGD12 enhances gravitropic bending, EHB1 functions as a negative element. To further characterize their cellular ...
In this study, we show that phyD regulates the Arabidopsis gravitropic response by inhibiting negative gravitropism of hypocotyls under red light condition. PhyD had only a limited effect on the gravitropic response of roots in red light condition. PhyD also enhanced phyB-regulated gravitropic ...
Araniti, F.; Graña, E.; Krasuska, U.; Bogatek, R.; Reigosa, M.J.; Abenavoli, M.R.; Sanchez-Moreiras, A.M. Loss of gravitropism in farnesene-treated arabidopsis is due to microtubule malformations related to hormonal and ROS unbalance.PLoS ONE2016,11, e0160202. [Google Scholar]...