Agave lechuguilla has one of the widest distributions among other agave species in the Chihuahuan Desert. Their capacity to grow in poorly developed soils and harsh conditions has been related to their association with plant growth-promoting rhizobacteria. In this work, we explored how soil properties and plant growth stage influence the composition of the rhizobacterial communities, their interactions, and the enzymatic activity and abundance of nitrogen-fixing bacteria and organic phosphorus-mineralizing bacteria in two subregions of the Chihuahuan Desert. We found that mature plants of lechuguilla stimulated the activity and abundance of nutrient-improvement rhizobacteria, and these soil samples had a higher content of total organic carbon, ammonium (NH4) and nitrite + nitrate (NO2+NO3). Nutrient availability seems to be an essential driver of the bacterial community's structure since the genera with more connections (hubs) were those with known mechanisms related to the availability of nutrients, such as env. OPS17 (Bacteroidetes), Gemmatimonadaceae uncultured, S0134terrestrial group, BD211terrestrial group (Gemmatimonadetes), Chthoniobacteracea and Candidatus Udaeobacter (Verrucomicrobia). This work shows that the late growth stages of lechuguilla recruit beneficial bacteria that favor its establishment and tolerance to harsh conditions of the arid lands.
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http://dx.doi.org/10.1093/femsec/fiab137 | DOI Listing |
Microb Ecol
August 2023
CONACyT-División de Ciencias Ambientales, Instituto Potosino de Investigación Científica Y Tecnológica, A.C., Camino a La Presa de San José 2055, Lomas 4Ta Secc, 78216, San Luis Potosí, S.L.P., Mexico.
Agave lechuguilla is a widely distributed plant in arid ecosystems. It has been suggested that its microbiome is partially responsible for its great adaptability to the oligotrophic environments of the Chihuahuan Desert. To lead the recruitment of beneficial rhizobacteria, the root exudates are essential; however, the amino acids contained within these compounds had been largely overlooked.
View Article and Find Full Text PDFPLoS One
September 2022
Facultad de Ciencias Forestales y Ambientales, Universidad Juárez del Estado de Durango, Durango, México.
Agave lechuguilla Torr., of the family Agavaceae, is distributed from southwestern United States to southern Mexico and is one of the most representative species of arid and semiarid regions. Its fiber is extracted for multiple purposes.
View Article and Find Full Text PDFMolecules
December 2021
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Instituto Politécnico Nacional 195, Playa Palo Santa Rita Sur, La Paz 23096, Mexico.
agro-waste is a promising renewable material for biorefining purposes. The procurement of added-value co-products, such as bioactive phytochemicals, is required to improve bioprocesses and promote the bio-based economy of the productive areas of Mexico. In this study, we aimed to evaluate the effect of post-harvest management and enzymatic pretreatment as the first stages of the valorization process.
View Article and Find Full Text PDFPlants (Basel)
November 2021
CONACYT-Centro de Investigaciones Biológicas del Noroeste S.C., Av. Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz C.P. 23096, Baja California Sur, Mexico.
In the present study, we used a by-product from () to test its antidiabetic effect, hypolipidemic activity, and capacity to mitigate the oxidative stress in kidney mitochondria from streptozotocin-induced diabetic rats. Orally, a crude aqueous extract from lyophilized was administered over 5 weeks at different doses. Blood glucose and body weight were monitored.
View Article and Find Full Text PDFFEMS Microbiol Ecol
October 2021
CONACyT- Division de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica, A.C., 78216 San Luis Potosi, S.L.P., Mexico.
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