The aims of this study were to identify endophytic and epiphytic plant growth promoting bacteria (PGPB) from healthy almond trees and to characterize plant growth promoting mechanisms. By using MALDI-TOF analyses, 19 Gram-negative isolates, belonging to Serratia, Pseudomonas, Ochrobactrum and Enterobacter genus and 26 Gram-positive isolates, belonging to Bacillus and Arthrobacter genus were identified. Among the tested bacterial isolates, 46 isolates were positive for siderophore production, 45 isolates for ammonium production, 35 isolates solubilized phosphorus varying ratios, and all isolates produced IAA between 5.48-127.81 µg/ml concentrations. Isolates of Pseudomonas spp and Enterobacter cloacae were found highly effective for siderophore production, S. marcescens for solubilisation of phosphorus, E. cloacae for IAA production, Bacillus spp for ammonia production. Bacterial isolates tested showed significant differences in siderophore, ammonia and IAA production and phosphorus solubilisation efficiency. It was found that the efficacies of endophytic bacterial isolates were lower compared to the same species of epiphytic bacterial isolates. Overall results suggest that use of the most efficient PGPB isolates have an excellent potential to be used as biofertilizer for cultivation of economically important crops.
|Journal Section||RESEARCH ARTICLE|
|Supporting Institution||Hatay Mustafa Kemal Üniversitesi Bilimsel Araştırma Projeleri Komisyonu Başkanlığı|
|Project Number||MKU BAP-16444|
|Thanks||Bu çalışma Hatay Mustafa Kemal Üniversitesi Bilimsel Araştırma Projeleri Komisyonu Başkanlığı tarafından finansal olarak desteklenmiştir (Proje Numarası: MKU BAP-16444).|
: December 16, 2019
|APA||Aktan, Z , Soylu, S . (2020). Diyarbakır İlinde Yetişen Badem Ağaçlarından Endofit ve Epifit Bakteri Türlerinin İzolasyonu ve Bitki Gelişimini Teşvik Eden Mekanizmalarının Karakterizasyonu . Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi , 23 (3) , 641-654 . DOI: 10.18016/ksutarimdoga.vi.659802|