Underground fires shape the structure of microbial communities and select for thermophilic bacteria through a temperature gradient.

A detailed diversity analysis of the prokaryotic and fungal communities in soil impacted by an underground fire located in the Trans-Mexican volcanic belt, Mexico, is described. Microbial diversity data obtained from soils at different depths and temperatures (27 °C, 42 °C, 50 ºC and 54 ºC) were analyzed, and Firmicutes increased in abundance as the temperature augmented, and Proteobacteria mainly decreased in abundance at high temperatures compared to unaffected soils. The fungal phylum Ascomycota was the most abundant, with no significant changes.

multifunctional allies for plant growth and health in saline soils: recent advances and future challenges.

Saline soils pose significant challenges to global agricultural productivity, hindering crop growth and efficiency. Despite various mitigation strategies, the issue persists, underscoring the need for innovative and sustainable solutions. One promising approach involves leveraging microorganisms and their plant interactions to reclaim saline soils and bolster crop yields.

Microbial Volatile Organic Compounds: Insights into Plant Defense.

Volatile organic compounds (VOCs) are low molecular weight molecules that tend to evaporate easily at room temperature because of their low boiling points. VOCs are emitted by all organisms; therefore, inter- and intra-kingdom interactions have been established, which are fundamental to the structuring of life on our planet. One of the most studied interactions through VOCs is between microorganism VOCs (mVOCs) and plants, including those of agricultural interest.

Arthrobacter sp. UMCV2, and its compound N,N-dimethylhexadecilamine promote nodulation in Medicago truncatula by Sinorhizobium medicae.

The actinobacterium Arthrobacter sp. UMCV2 promotes plant growth through the emission of N,N-dimethylhexadecilamine (DMHDA). The Medicago-Sinorhizobium nodulation has been employed to study symbiotic nitrogen fixation by rhizobia in nodulating Fabaceae.

Hydrogen peroxide modulates the expression of the target of rapamycin (TOR) and cell division in Arabidopsis thaliana.

Hydrogen peroxide (HO) is naturally produced by plant cells during normal development and serves as a messenger that regulates cell metabolism. Despite its importance, the relationship between hydrogen peroxide and the target of rapamycin (TOR) pathway, as well as its impact on cell division, has been poorly analyzed. In this study, we explore the interaction of HO with TOR, a serine/threonine protein kinase that plays a central role in controlling cell growth, size, and metabolism in Arabidopsis thaliana.