Mechanism of fertilization-induced auxin synthesis in the endosperm for seed and fruit development [PDF]
Nature Communications, 2022 In flowering plants, fertilization triggers auxin synthesis in the endosperm to promote seed and fruit development. Here the authors show that an MADS-box transcription factor AGL62 is required to activate auxin synthesis in the endosperms of Fragaria ...
Lei Guo +5 more
doaj +2 more sources
Local auxin synthesis mediated by YUCCA4 induced during root-knot nematode infection positively regulates gall growth and nematode development [PDF]
Frontiers in Plant Science, 2022 Parasites and pathogens are known to manipulate the host’s endogenous signaling pathways to facilitate the infection process. In particular, plant-parasitic root-knot nematodes (RKN) are known to elicit auxin response at the infection sites, to aid the ...
Reira Suzuki +11 more
doaj +2 more sources
Melatonin regulates root meristem by repressing auxin synthesis and polar auxin transport in Arabidopsis [PDF]
Frontiers in Plant Science, 2016 Melatonin (N-acetyl-5-methoxytryptamine) plays important roles in regulating both biotic and abiotic stress tolerance, biological rhythms, plant growth and development.
Qiannan Wang +6 more
doaj +3 more sources
Melatonin regulates gene expressions through activating auxin synthesis and signaling pathways. [PDF]
Front Plant Sci, 2022 BackgroundBoth melatonin and indole-3-acetic acid (IAA) are derived from tryptophan. And the most interesting and unsolved puzzle in melatonin research is that what is the relationship between melatonin and auxin?MethodsIn this study, we performed transcriptome analysis with a time series method to disclose the connection of the two metabolites in ...
Wei W +5 more
europepmc +4 more sources
Stress-Induced Microspore Embryogenesis Requires Endogenous Auxin Synthesis and Polar Transport in Barley [PDF]
Frontiers in Plant Science, 2019 Stress-induced microspore embryogenesis is a model in vitro system of cell reprogramming, totipotency acquisition, and embryo development. After induction, responsive microspores abandon their developmental program to follow an embryogenic pathway ...
Yolanda Pérez-Pérez +5 more
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Molecular machinery of auxin synthesis, secretion, and perception in the unicellular chlorophyte alga Chlorella sorokiniana UTEX 1230. [PDF]
PLoS ONE, 2018 Indole-3-acetic acid is a ubiquitous small molecule found in all domains of life. It is the predominant and most active auxin in seed plants, where it coordinates a variety of complex growth and development processes.
Maya Khasin +3 more
doaj +2 more sources
Synthesis and regulation of auxin and abscisic acid in maize [PDF]
Plant Signaling & Behavior, 2021 Indole-3-acetic acid (IAA), the primary auxin in higher plants, and abscisic acid (ABA) play crucial roles in the ability of maize (Zea mays L.) to acclimatize to various environments by mediating growth, development, defense and nutrient allocation. Although understanding the biochemical reactions for IAA and ABA biosynthesis and signal transduction ...
Kai Yue +4 more
openaire +2 more sources
A New Gene for Auxin Synthesis [PDF]
Cell, 2008 There is much interest in understanding the pathways that trigger biosynthesis of the plant hormone auxin. In this issue, Stepanova et al. (2008) and Tao et al. (2008) reveal that a small family of tryptophan aminotransferases catalyze formation of indole-3-pyruvic acid (IPA) from L-tryptophan (L-Trp), the first step in a pathway for auxin biosynthesis.
Palme, Klaus, Nagy, Ferenc
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Plant Signaling & Behavior, 2022 Plants have the potency to regenerate adventitious roots from aerial organs after detachment. In Arabidopsis thaliana, de novo root regeneration (DNRR) from leaf explants is triggered by wounding signaling that rapidly induces the expression of the ...
Jingjing Tian +5 more
doaj +1 more source
Auxin Synthesis-Encoding Transgene Enhances Grape Fecundity [PDF]
Plant Physiology, 2007 Grape (Vitis vinifera) yield is largely dependent on the fecundity of the cultivar. The average number of inflorescences per shoot (i.e. shoot fruitfulness) is a trait related to fecundity of each grapevine. Berry number and weight per bunch are other features affecting grape yield.
Costantini E. +5 more
openaire +2 more sources