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Auxin response factors ARF6 and ARF8 promote jasmonic acid production and flower maturation
TLDR
Arf6 and arf8 single mutants and sesquimutants had delayed stamen development and decreased fecundity, indicating that ARF6 and ARF8 gene dosage affects timing of flower maturation quantitatively.
PHYTOCHROME-INTERACTING FACTOR 4 (PIF4) regulates auxin biosynthesis at high temperature
  • K. Franklin, S. Lee, +9 authors W. Gray
  • Biology, Medicine
    Proceedings of the National Academy of Sciences
  • 28 November 2011
TLDR
It is demonstrated that PIF4 regulates levels of auxin and the expression of key auxin biosynthesis genes at high temperature and a family of SMALL AUXIN UP RNA genes that are expressed at highTemperature in a PIF 4-dependent manner and promote elongation growth are identified.
Biosynthesis, conjugation, catabolism and homeostasis of indole-3-acetic acid in Arabidopsis thaliana
TLDR
This review focuses on IAA metabolism in Arabidopsis and draws complementary information from the literature on other species to delineate as completely as possible the most current views on processes responsible for IAA production and its regulation.
Arabidopsis ASA1 Is Important for Jasmonate-Mediated Regulation of Auxin Biosynthesis and Transport during Lateral Root Formation[W][OA]
TLDR
A role for jasmonate is revealed in the attenuation of auxin transport in the root and the fine-tuning of local auxin distribution in theRoot basal meristem, showing that the action mechanism of jasMonate to regulate LR formation through ASA1 differs from that of ethylene.
Interplay between MAMP-triggered and SA-mediated defense responses.
TLDR
It is found that SA accumulated at a higher level 6 h after treatment with a MAMP, flg22 or inoculation with Pseudomonas syringae pv, indicating that the SA increase triggered by MAMPs is a major component of the MAMP-triggered signaling mechanism, explaining the overlapping spectra of MAMP and SA-mediated responses.
vanishing tassel2 Encodes a Grass-Specific Tryptophan Aminotransferase Required for Vegetative and Reproductive Development in Maize[C][W][OA]
TLDR
Phylogenetic analyses indicate that vt2 is a co-ortholog of TRYPTOPHAN AMINOTRANSFERASE of ARABIDOPSIS1 (TAA1), which converts Trp to indole-3-pyruvic acid in one of four hypothesized Trp-dependent auxin biosynthesis pathways.
Interplay between MAMP-triggered and SA-mediated defense responses.
TLDR
It is found that SA accumulated at a higher level 6 h after treatment with a MAMP, flg22 or inoculation with Pseudomonas syringae pv, indicating that the SA increase triggered by MAMPs is a major component of the MAMP-triggered signaling mechanism, explaining the overlapping spectra of MAMP and SA-mediated responses.
Pseudomonas syringae type III effector AvrRpt2 alters Arabidopsis thaliana auxin physiology
TLDR
Application of the auxin analog 1-naphthaleneacetic acid promoted disease symptom development in PstDC3000-infected plants, suggesting that elevated auxin levels within host tissue promote Pst DC3000 virulence.
Evolutionary patterns in auxin action
TLDR
The seed plants did not evolve de novo mechanisms for mediating IAA responses, but have rather modified pre-existing mechanisms already operating in the early land plants.
Auxin levels at different stages of carrot somatic embryogenesis
TLDR
The present results suggest that high IAA levels may be necessary but are not sufficient for the initial events in plant embryogenesis, whereas low IAA Levels are associated with the later stages of embryo development.
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