Grey mold disease of eggplant (Botrytis cinerea Pers.) causes serious yield losses on eggplant (Solanum melongena L.) production in greenhouses in Turkey. In this study, effects of some plant growth regulating rhizobacteria against grey mold disease were investigated.Bacillus spp. (B379c, B10a and 76A-1) and Pseudomonas spp. (P07-1, P07-4 and 85A-2) isolates inhibited mycelial development of B. cinerea (Bc-TR07) under in vitro conditions at varying rates (21-33%). Among the PGPR isolates, P. aeruginosa (P07-1) was found as the most successful isolate in pot experiments with an efficiency rate of 58.1%, compared to positive control containing only pathogen inoculum. Similarly, this isolate significantly increased some plant growth parameters. The P07-1 isolate resulted a 27.0% increase in total proline content of eggplants 72 h after pathogen inoculation, and in the same period, defense enzymes catalase (CAT) and peroxidase (POX) were also increased 22.8% and 27.7% respectively, compared to positive control. This isolate was followed by P. putida (P11-4) and then B. amyloliquefaciens (76A-1) by means of CAT and POX enzymes activity. The major disease suppression mechanisms of the tested PGPR isolates were identified as their plant growth regulation and resistance induction abilities.
|Journal Section||RESEARCH ARTICLE|
: December 6, 2018
|APA||Altınok, H , Çi̇fçi̇, G . (2019). Patlıcan Tohumlarında Bitki Büyüme Düzenleyici Rizobakteri Uygulamalarının Kurşuni Küf (Botrytis cinerea Pers.: Fr.) Hastalığına Etkileri . Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi , 22 (3) , 421-429 . DOI: 10.18016/ksutarimdoga.vi.492824|