Rhizospheric actinobacteria of Opuntia sp. “prickly pear” with deaminase activity as growth promoting in Solanum lycopersicum L. under salinity stress

• DOI: 10.17268/sci.agropecu.2023.002
• Publication Date: 2023-01-31T01:50:51Z
• Authors: Marilín Sánchez-P...; Jorge Hernández-H...; Junior Caro-Castro; Carmen Carreño-Fa...
• Keywords: 2. Zero hunger; Salinity; Opuntia sp.; S; Agriculture (General); Opuntia sp; Agriculture; plant growth promoting; 15. Life on land; tomato; ACC deaminase; 6. Clean water; S1-972; Actinobacteria

The growing of Solanum lycopersicum L. "tomato" is affected by salinity, reducing its water consumption, and affecting negatively plant growth development. Therefore, it necessary to seek sustainable cultivation fertilization options, such as the use growth-promoting rhizobacteria. This research aimed determine potential rhizospheric Actinobacteria isolated from Opuntia sp. "prickly pear" tomato promoting under salinity. genera were identified, synthesis 1-aminocyclopropane-1-carboxylic acid deaminase (ACC) was characterized effect on germination cultivar Río Grande seeds evaluated. Two tests non-saline saline soils carried out compare Streptomyces spp. Nocardia in development greenhouse. Several 87.03% samples, highlighting (46.67%) (34.0%). 9.33% presented ACC activity, which increased seed germination, yield seedlings with increases 88.98% (height); 96.30% (number sheets); 201.35% (aerial biomass); 173.77% (root length); 100.0% weight); 150.0% fruits) 173.14% (weight fruits), well 1.37 mg/g chlorophyll content soil. Also, strain 21 decreased sodium potassium K+/Na+ rate leaves roots plants highest (1.068 kg/plant) In conclusion, positive promoters yield, increasing content, decreasing salinity stress demonstrated.