Insight into the mode of action of 2,4-dichlorophenoxyacetic acid (2,4-D) as an herbicide. | Semantic Scholar (2024)

The results indicate a potential 2,4-D tolerance mechanism in CS-B15sh involving altered movement of 2, 4-D and Gene set enrichment analysis on the union DEGs of the three cotton genotypes revealed the depletion of transcripts involved in photosynthesis and enrichment of transcriptsinvolved in ABA response and signaling.

The results indicate that the use of 2,4‐D herbicides for weed control in aquatic ecosystems at current recommended concentrations could present risks to fathead minnow larval survival.

Investigation of the molecular background by using different growth conditions under which three different auxinic herbicides were administered found a role for GH3 genes and genes encoding auxin efflux proteins, and genes for were found that confirm the upregulation of the ethylene pathway.

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It is shown that AXR4 is a previously unidentified accessory protein of the endoplasmic reticulum (ER) that regulates localization ofAUX1 but not of PIN proteins, indicating that the axr4 agravitropic phenotype is caused by defective AUX1 trafficking in the root epidermis.

It is demonstrated that TIR1, AFB2, and AFB3, but not AFB1 exhibit significant posttranscriptional regulation and the microRNA miR393 is expressed in a pattern complementary to that of the auxin receptors and appears to regulate T IR1/AFB expression, which suggests that this regulation is complex.

Global analysis of cotton transcriptome dynamics during SE in different sister lines revealed the substantial changes in gene type and abundance between two sister lines, and suggested auxin and cytokinin play a primary role in SE, but potential cross-talk with each other or other factors remains unclear.

This study isolated and identified an Aux/IAA protein gene from rice, OsIAA4, whose protein contains a dominant mutation-type domain II and has very low expression in the entire life cycle of rice.

It is demonstrated that SMAP1 is required for normal plant growth and development and the root response to indole-3-acetic acid or methyl jasmonate in the auxin resistant1 (axr1) mutation background and the extremely dwarf phenotype of the aar1-1 csn5a-1 double mutant confirms the functional role of SMAP2 under limiting CSN functionality.

2,4-D, an auxin hom*olog and widely used herbicide in monocotyledonous crops, is identified as a potent elicitor of rice defenses and the potential of the herbicide to turn rice into a selective catch crop for an economically important pest is shown.

The S-nitrosylation levels of catalase and glycolate oxidase changed under cadmium and 2,4-D treatments, suggesting that this post-translational modification could be involved in the regulation of H2O2 level under abiotic stress.

It is suggested that ROS overproduction is a key factor in the effect of high concentrations of 2,4-D, and ROS can trigger a differential response in young and adult leaves, either epinasty development in young leaves or senescence processes in adult tissues.

This review aims to connect the novel findings with the more classical literature on ABP1 and to point out the many open questions that still separate us from a comprehensive model ofABP1 action, almost 40 years after the first reports of its existence.

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