A review on potential role of auxins in plants, current …

ResultAuxin is a plant hormone that significantly plays important role in plant growth cell division and differentiation, in fruit development, in the formation of roots from …

A network of transcriptional repressors modulates auxin responses

ResultA subset of these, the conserved class A ARFs5, are transcriptional activators of auxin-responsive target genes that are essential for regulating auxin signalling throughout the plant lifecycle2,3 ...

Auxin receptor OsTIR1 mediates auxin signaling during seed …

ResultAbstract. Cereal endosperm represents the most important source of the world's food. Nevertheless, the molecular mechanisms behind sugar import into rice (Oryza sativa) endosperm and their relationship with auxin signaling are poorly understood.Here, we report that auxin transport inhibitor response 1 (TIR1) plays …

Mechanism of auxin perception by the TIR1 ubiquitin ligase

ResultAbstract. Auxin is a pivotal plant hormone that controls many aspects of plant growth and development. Perceived by a small family of F-box proteins including transport inhibitor response 1 (TIR1 ...

Auxin in action: signalling, transport and the control of

ResultAuxins are a class of plant hormones that affect various aspects of plant development. Recent studies have identified certain F-box-domain proteins as auxin receptors that control auxin-regulated ...

4.4.1: Auxin

ResultWhile many synthetic auxins are used as herbicides, indole-3-acetic acid ( IAA) is the only naturally occurring auxin that shows physiological activity (Figure 4.4.1.1 4.4.1. 1 ). Auxin is synthesized in apical meristems, young leaves, and developing seeds. Figure 4.4.1.1 4.4.1. 1: Chemical structure of indole-3-acetic acid (IAA)

Q&A: Auxin: the plant molecule that influences almost anything

ResultAuxin response can be found in what could be considered gradients [3, 23] and this has led to speculation that auxin may act in a concentration-dependent manner to instruct cells along those gradients. While attractive, the evidence supporting a morphogen-like action is limited. If auxin concentration …

A mechanistic framework for auxin dependent

ResultHere Bhosale et al. show that root hair elongation requires auxin synthesis mediated by TAA1, auxin transport by AUX1 in the lateral root cap and epidermis, and signaling via the auxin-inducible ...

ABP1–TMK auxin perception for global phosphorylation and auxin

ResultAn ABP1 (M2X) variant that lacks the capacity to bind auxin is unable to complement these defects in abp1 mutants. These data indicate that ABP1 is the auxin receptor for TMK1-based cell-surface ...

On the trail of auxin: Reporters and sensors

ResultPromoter-based reporters. In the first generation of auxin reporters, the expression of the β-GLUCURONIDASE (GUS) reporter gene was driven by …

Auxin action | Nature

ResultAuxin has long been a fixture in the textbooks, so you might be surprised to learn that until now the identity of the auxin receptor has been unknown. Two groups working independently have now ...

Auxin | Definition, Functions, & Uses | Britannica

Resultgibberellic acid. auxin, any of a group of plant hormones that regulate growth, particularly by stimulating cell elongation in stems. Auxins also play a …

Mechanisms of auxin signaling

ResultAuxin is a plant hormone that has a role in most aspects of plant growth and development. Four native auxins have been identified in plants, with indole-3-acetic acid (IAA) being the most abundant form. Auxin distribution within plant tissues is regulated by biosynthesis, inactivation and transport pathways …

Genetic robustness control of auxin output in priming organ

ResultGenetic robustness control of auxin output in priming organ initiation. 10.1073/pnas.2221606120., the paralogous gene of, acts redundantly with but is not coexpressed with in the organ founder cells in which is expressed. We demonstrate that DRNL directly inhibits expression in the peripheral zone, whereas transcripts …

Auxin and Its Role in Plant Senescence

ResultModel of the integration of auxin-related genes with senescence. The transcription factor ARF2 represses the expression of the GATA genes GNC and GNL by directly binding to their promoters, concomitant with a reduction of chlorophyll accumulation, thus contributing to shifting the regulatory balance toward …

The Small Auxin-Up RNA SAUR10 Is Involved in the Promotion of …

ResultSmall auxin-up-regulated RNAs (SAURs) are genes rapidly activated in response to auxin hormones, significantly affecting plant growth and development. However, there is limited information available about the specific functions of SAURs in rice due to the presence of extensive redundant genes. In this study, we found …

Plant root development: is the classical theory for auxin-regulated

ResultOne of the longest standing theories and, therein-based, regulation-model of plant root development, posits the inhibitory action of auxin (IAA, indolylacetic acid) on elongation growth of root cells. This effect, as induced by exogenously supplied IAA, served as the foundation stone for root growth …

Auxin: small molecule, big impact

ResultAuxin research touches on a very wide variety of processes in plant development, and correspondingly a range of systems and approaches is revealing new understanding. This special issue spans this range, from research on mosses and liverworts which is revealing evolutionary aspects to the exquisite detail of …

The Role of Auxin in Abscission of Organs and Tissues

ResultWhile auxin gradients have been implicated in various growthrelated processes our - work provides novel data in support of a regulatory role of distinct auxin maxima and minima in organ and tissue abscission. Keywords: Populus, auxin, ethylene, abscission, cell separation, PIN proteins, Arabidopsis, root cap, auxin transport.

Auxin(English)

ResultBeijing Auxin Chemical Technology Ltd. (hereinafter referred to as Auxin or the Company), affiliated to China North Industries Group Corporation Limited …

Genetic dissection of the auxin response network | Nature Plants

ResultThe Solanum lycopersicum auxin response factor 7 (SlARF7) regulates auxin signaling during tomato fruit set and development. Plant J. 57, 160–170 (2009). PubMed Google Scholar

The role of auxin during early berry development in grapevine as

ResultAuxin is a key phytohormone that modulates fruit formation in many fleshy fruits through the regulation of cell division and expansion. Auxin content …

O auxin, where art thou? | Nature Plants

ResultThe plant hormone auxin acts as a morphogen throughout the plant's life cycle, shaping growth, tropisms and developmental patterns from embryo establishment to vegetative growth and flower and ...

DOC Issues Final Decision in Auxin Solar Case on Certain Cells …

ResultThe US Department of Commerce (DOC) issued its Final Determination on August 18, 2023 related to circumvention of antidumping and …

Auxin 2016: a burst of auxin in the warm south of China

ResultDevelopment (2017) 144 (4): 533–540. The luxurious vegetation at a, the most southern location in China on the island of Hainan, provided a perfect …

Chemical Biology in Auxin Research

ResultChemical biology methods applied in auxin research have been greatly expanded through the understanding of auxin regulatory pathways. Many small-molecule …

Auxin in action: signalling, transport and the control of

ResultAuxins are a class of plant hormones that affect various aspects of plant development. Recent studies have identified certain F-box-domain proteins …

Auxin Metabolism in Plants

ResultThe major natural auxin in plants, indole-3-acetic acid (IAA), orchestrates a plethora of developmental responses that largely depend on the formation of auxin concentration gradients within plant tissues. Together with inter- and intracellular transport, IAA metabolism-which comprises biosynthesis, …

Roles of auxin pathways in maize biology

ResultIntroduction. The pervasiveness and longevity of auxin research among plant biologists is well appreciated (and often lamented). Some of the earliest reports on the roles of auxin in maize indicate that this hormone plays a key role in controlling organ size and growth in response to light (Overbeek, 1938; Briggs et …

WUSCHEL acts as an auxin response rheostat to maintain apical

ResultSpatial control of auxin signaling maintains a balance between stem-cell self-renewal and differentiation at the plant shoot apex. Here Ma et al. show that rheostatic control of auxin response by ...

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