<i>Peribacillus frigoritolerans</i>T7-IITJ, a potential biofertilizer, induces plant growth-promoting genes of<i>Arabidopsis thaliana</i>

Marik, Debankona; Sharma, Pinki; Chauhan, Nar Singh; Jangir, Neelam; Shekhawat, Rajveer Singh; Verma, Devanshu; Mukherjee, Manasi; Abiala, Moses; Roy, Chandan; Yadav, Pankaj; Sadhukhan, Ayan

doi:10.1101/2023.12.09.570910

Cited by 1 publication

(1 citation statement)

References 97 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bacteria with beneficial effects on plants, such as Plant Growth-Promotion Rhizobacteria (PGPR), were detected in our samples. Peribacillus frigoritolerans, isolated for the first time in arid soils from Morocco, is an extremophilic microorganism, involved in soil bioremediation, with a promising PGPR activity [68][69][70]. Bacillus safensis subsp.…”

Section: Description Of Culturable Microbial Communitiesmentioning

confidence: 99%

Microorganisms Isolated from Saharan Dust Intrusions in the Canary Islands and Processes of Mineral Atmospherogenesis

Navarro,

del Moral,

de Pablos

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

Global warming due to climate change has increased the frequency of sand and dust storms that affect air quality and ecosystems in general, contributing to air pollution. The Sahara Desert is the most potent emitter of atmospheric dust. The atmosphere is an extreme environment and microorganisms living in the troposphere are exposed to greater ultraviolet radiation, desiccation, low temperatures and nutrient deprivation than in other habitats. The Iberian Peninsula, and specifically the Canary Islands—due to its strategic location—is one of the regions that receive more Saharan dust particles annually, increasing year after year, although culturable microorganisms had previously never been described. In the present work, dust samples were collected from three calima events in the Canary Islands between 2021 and 2022. The sizes, mineralogical compositions and chemical compositions of dust particles were determined by laser diffraction, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), respectively. Particle morphology and biological features were also studied by scanning electron microscopy (SEM-EDX) and confocal laser scanning microscopy (CLSM). The mineral–bacteria interactions were described from microscopic observations, which revealed the presence of iberulites and small neoformed kaolinite crystals in association with bacteria. This article defines the term “mineral atmospherogenesis” and its variant, “mineral bioatmospherogenesis”, through microbial interaction. This is the first described case of kaolinite produced through mineral bioatmospherogenesis. The bacterial growth in atmospheric dust was illustrated in SEM images, constituting a novel finding. Twenty-three culturable microorganisms were isolated and identified by 16S rRNA sequencing. Members of the phyla Pseudomonadota, Bacillota and Actinomycetota have been found. Some of these microorganisms, such as Peribacillus frigoritolerans, have Plant Growth-Promoting Rhizobacteria (PGPR) properties. Potential human pathogenic bacteria such as Acinetobacter lwoffii were also found. The presence of desert dust and iberulites in the Canary Islands, together with transported biological components such as bacteria, could have a significant impact on the ecosystem and human health.

show abstract

Section: Description Of Culturable Microbial Communitiesmentioning

confidence: 99%