Although indole-3-acetic acid (IAA), the predominant auxin in plants, plays a critical role in various plant growth and developmental processes, its biosynthesis and regulation have not been clearly elucidated.
by a simple, two-step, process. TheTAA1/TARgenes encode the enzymes for the first step, while YUCCA enzymes catalyse the second, resulting in the bioactive auxins, indole-3-acetic acid (IAA), and in developing pea seeds, chlorinated IAA. Mutations inYUCCAgenes have provided...
Auxin biosynthesis by the YUCCA genes in rice Plant Physiol., 143 (2007), pp. 1362-1371 CrossrefView in ScopusGoogle Scholar 12 Y.M. Woo, H.J. Park, M. Su'udi, J.I. Yang, J.J. Park, K. Back, Y.M. Park, G. An Constitutively wilted 1, a member of the rice YUCCA gene ...
Molecular mechanisms underlying the regulation of cellular IAA levels still remain unclear due to the multiple regulatory steps involving the biosynthesis, directional transport and inactivation of auxin. In addition, the redundant functions of the large family of YUC genes prevent the access of reverse...
Yamamoto Y, Kamiya N, Morinaka Y, Matsuoka M, Sazuka T (2007) Auxin biosynthesis by the YUCCA genes in rice. Plant Physiol 143(3):1362–1371 PubMed CentralPubMedCASGoogle Scholar Zhang S-W, Li C-H, Cao J, Zhang Y-C, Zhang S-Q, Xia Y-F, Sun D-Y, Sun Y (2009) Altered ar...
], suggesting the crucial role ofpolar auxin transportin the generation of auxin gradients. By contrast, mutation of auxin biosynthesis-related genes also affects auxin gradient formation[3]. A growing body of recent studies further demonstrates that local auxin biosynthesis has an important role in...
Auxin biosynthesis by the YUCCA flavin monooxygenases controls the formation of floral organs and vascular tissues in Arabidopsis. Genes Dev , 2006 , 20: 1790 -1799 CrossRef PubMed Google Scholar [14] Kim J I, Murphy A S, Baek D, et al. YUCCA6 over-expression demonstrates auxin func...
& Zhao, Y. Auxin biosynthesis by the YUCCA flavin monooxygenases controls the formation of floral organs and vas- cular tissues in Arabidopsis. Genes Dev. 20, 1790–1799 (2006). 44. Huang, J. et al. Ectopic expression of TAPETUM DETERMINANT1 affects ovule development in Arabidopsis. J. Exp...
OsYUCCA4, during the late development of anthers. This confers a key switch of auxin levels between meiosis of microspore mother cells and pollen mitotic divisions, thus controlling the timing of anther dehiscence during rice anthesis. Our findings shed light on the mechanism of hormonal control ...
thaliana mutants deficient in auxin biosynthesis genes exhibited infertile phenotypes24. TENGU is thought to downregulate early auxin-responsive genes4, suggesting that repression of the auxin signaling pathway by TENGU may play a role in flower sterility. Based on these observations, although it ...