
Life, Год журнала: 2024, Номер 14(11), С. 1461 - 1461
Опубликована: Ноя. 12, 2024
Potassium (K) is immobilized within the clay minerals, making it unavailable for plant use. Therefore, current study aimed to (i) select isolates of purple nonsulfur bacteria that can dissolve K (K-PNSB) and (ii) evaluate production plant-growth-promoting substances by K-PNSB isolates. The results revealed from in-dyked alluvial soils in hybrid maize fields, 61 were obtained under pH 5.50 conditions. total dissolved content (Kdis) fluctuated 56.2 98.6 mg L−1. Therein, three isolates, including M-Sl-09, M-So-11, M-So-14 had Kdis 48.1–48.8 L−1 aerobic dark condition (ADC) 47.6–49.7 microaerobic light (MLC). Moreover, these also fix nitrogen (19.1–21.5 2.64–7.24 L−1), solubilize Ca-P (44.3–46.8 0.737–6.965 produce indole-3-acetic acid (5.34–7.13 2.40–3.23 5-aminolevulinic (1.85–2.39 1.53–2.47 siderophores (1.06–1.52 0.92–1.26 exopolymeric (18.1–18.8 52.0–56.0%), respectively, ADC MLC. identified according their 16S rDNA as Cereibacter sphaeroides Rhodopseudomonas thermotolerans Rhodospeudomonas palustris M-So-14. These potential should be further investigated a biofertilizer.
Язык: Английский