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POTENTIAL ACTINOMYCETES FROM BANG KRAJCHAO SOIL FOR THE PRODUCTION OF PLANT GROWTH-PROMOTING BIOPRODUCTS |
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| รหัสดีโอไอ | |
| Creator | Phatchani Srikhumsuk |
| Title | POTENTIAL ACTINOMYCETES FROM BANG KRAJCHAO SOIL FOR THE PRODUCTION OF PLANT GROWTH-PROMOTING BIOPRODUCTS |
| Contributor | Phichamon Noisuwan, Chantamanee Poonjarernsilp, Wasana Phantewee |
| Publisher | Pibulsongkram Rajabhat University |
| Publication Year | 2568 |
| Journal Title | Life Sciences and Environment Journal |
| Journal Vol. | 26 |
| Journal No. | 2 |
| Page no. | 427-442 |
| Keyword | actinomycetes, plant growth-promoting, phosphate solubilization, biofertilizer, Streptomyces sennicomposti |
| URL Website | https://ph01.tci-thaijo.org/index.php/psru/index |
| Website title | Life Sciences and Environment Journal |
| ISSN | 2773-9201 |
| Abstract | This research aimed to isolate potent plant growth-promoting actinomycetes (PGPA) from the saline soil of the Bang Krachao agroforestry area in Samut Prakan Province. Soil samples were collected from 11 distinct locations. A total of 219 actinomycete isolates were successfully recovered. A Screening for phosphate-solubilizing ability revealed 20 isolates capable of solubilizing phosphate on three different test media: PKV agar, LB agar, and NBRIP agar, using the spot test method at 28 °C for 7 days. The results indicated that phosphate degradation was most effective on PKV agar. The phosphate solubilization index (PSI) was measured, and only 3 isolates out of the 20 exhibited a PSI value greater than 3.50. These isolates coded BJ01-4, BJ09-4, and BJ01-2 yielded PSI values of 5.02±0.07, 4.30±0.50 and 3.90±0.09, respectively. 16S rRNA gene sequencing of isolate BJ01-4 showed high sequence similarity to Streptomyces sennicomposti. The promising isolate, BJ01-4, was subsequently tested as an inoculant for the production of a biofertilizer powder. Four different biofertilizer formulations were compared in growth trials with chili and tomato plants for 30 days. The results demonstrated that the BJ01-4 isolate maximized the growth promotion of chili plants when incorporated into Formulation 4, which consisted of a rice flour and rice bran mixture (80:20 w/w) with 30 mL of water. This actinomycete isolate presents a promising opportunity for developing a cost-effective biofertilizer to potentially reduce the reliance on chemical fertilizers in agricultural practices in the future. |
