Plant growth promoting bacteria promote rice growth cultivated in two different sandy soils subjected distinct climates conditions.

Autor: de Holanda SF; Graduate Program in Biotechnology, University of Taquari Valley-Univates, Lajeado, RS, Brazil., Berghahn E; Graduate Program in Biotechnology, University of Taquari Valley-Univates, Lajeado, RS, Brazil., Vargas LK; Department of Agricultural Research and Diagnosis, Secretariat of Agriculture, Livestock and Rural Development, 570 Gonçalves Dias St, Porto Alegre, Brazil., Granada CE; Graduate Program in Biotechnology, University of Taquari Valley-Univates, Lajeado, RS, Brazil. camille.granada@ufrgs.br.; Department of Genetics, Institute of Biosciences, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil. camille.granada@ufrgs.br.
Jazyk: angličtina
Zdroj: World journal of microbiology & biotechnology [World J Microbiol Biotechnol] 2024 Oct 16; Vol. 40 (11), pp. 352. Date of Electronic Publication: 2024 Oct 16.
DOI: 10.1007/s11274-024-04161-1
Abstrakt: Sandy soils contain around 70% sand in their composition, making them highly fragile and susceptible to land degradation. Practices such as no-tillage cultivation, the use of bioinoculants, and the application of organic amendments can restore the organic matter in these soils, ensuring sustainable production. In this context, this work aimed to study the microbiological aspects of two sandy soil areas (Brazilian Northeast and South) under contrasting climatic conditions (tropical and temperate). With this purpose, prokaryotic communities were evaluated, and the plant growth-promoting potential of isolated bacteria was assessed by rice inoculation in sandy soil. Despite the high sand content in both soils, soil from the NE was related to the highest phosphorous, calcium, potassium, copper, sodium, zinc, magnesium, and manganese contents, organic matter percentage, and pH. The Shannon diversity index indicated that prokaryotic communities in NE were more diverse than in SU, and PCA revealed that microbial composition exhibited distinct patterns. The rice inoculation experiments were executed to verify if the bacterial isolates displayed a similar growth promotion potential when inoculated in sandy soil areas subjected to different climatic conditions. When all PGP characteristics evaluated were pooled in a PCA, a similar pattern was observed for SU and NE. Burkholderia sp. SU94 was related to highest PGP characteristics evaluated. Paraburkholderia sp. NE32 showed similar results to those of the non-inoculated control. This similar effect of rice growth in the Northeast and South of Brazil suggests that isolate SU94 adapts to different environmental conditions.
(© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
Externí odkaz: