Alleviation of drought stress damages by melatonin and associated with adjusting photosynthetic efficiency, antioxidative system, and anatomical structure of (L.).

These experiments were performed to study the effect of exogenous treatment with melatonin at 100 μM and seed treatment with (10 CFU/cm) on growth, physio-biochemical characters, antioxidant enzymes, and anatomical features of soybean plants cv. Giza 111 under drought conditions. The findings showed that leaves number, nodules number, branches number, relative water content (RWC), chlorophyll content, and maximum quantum efficiency of PSII (Fv/Fm) were significantly reduced in soybean under drought stress.

Correction to "Mitigation of Salinity Stress and Lead Toxicity in Maize by Exogenous Application of the Sorghum Water Extract".

[This corrects the article DOI: 10.1021/acsomega.3c09495.

Mitigation of Salinity Stress and Lead Toxicity in Maize by Exogenous Application of the Sorghum Water Extract.

The increased concentration of lead (Pb) in soils is a serious threat to human beings and plants all over the world. Salinity stress is also a major issue across the globe, which limits crop productivity. The use of allelochemicals has become an effective strategy to mitigate the toxic effects of abiotic stresses.

Author Correction: A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate.

The original version of this Article omitted the following from the Acknowledgements: 'We also thank DBT-CREST BT/HRD/03/01/2002.' This has been corrected in both the PDF and HTML versions of the Article.

A mechanistic framework for auxin dependent Arabidopsis root hair elongation to low external phosphate.

Phosphate (P) is an essential macronutrient for plant growth. Roots employ adaptive mechanisms to forage for P in soil. Root hair elongation is particularly important since P is immobile.

Dynamic regulation of auxin oxidase and conjugating enzymes AtDAO1 and GH3 modulates auxin homeostasis.

The hormone auxin is a key regulator of plant growth and development, and great progress has been made understanding auxin transport and signaling. Here, we show that auxin metabolism and homeostasis are also regulated in a complex manner. The principal auxin degradation pathways in Arabidopsis include oxidation by Arabidopsis thaliana gene DIOXYGENASE FOR AUXIN OXIDATION 1/2 (AtDAO1/2) and conjugation by Gretchen Hagen3s (GH3s).

Dioxygenase-encoding AtDAO1 gene controls IAA oxidation and homeostasis in Arabidopsis.

Auxin represents a key signal in plants, regulating almost every aspect of their growth and development. Major breakthroughs have been made dissecting the molecular basis of auxin transport, perception, and response. In contrast, how plants control the metabolism and homeostasis of the major form of auxin in plants, indole-3-acetic acid (IAA), remains unclear.