Abstract
Abstract
Background
Verticillium dahliae Kleb. is a soil-borne pathogen with a broad host spectrum and causes yield losses in cotton cultivation worldwide. Beauveria bassiana is an environmentally friendly entomopathogenic fungus (EPF) that has been recognized, used and studied for many years.
Results
As a control, all local of B. bassiana isolates inhibited mycelial growth of the pathogen at different rates. The highest percentage of inhibition against non-defoliating (PHCVd3 isolate) and defoliating (PHCVd47 isolate) pathotypes was determined in Bb18 (85.3; 81.7%) and Bb1 (82.3; 77.5%) isolates, respectively, when applied 2 days ago. Isolates Bb1 (80.6%) and Bb18 (77.8%) had the highest percentages of inhibition against the PHCVd3 isolate, and Bb18 (75.8%) against isolate PHCVd47, when EPF and pathogen were applied at the same time.
Conclusions
Bb18 and Bb1 isolates of B. bassiana showed a hope against both pathotypes of wilt disease caused by V. dahliae under in vitro conditions. Especially, B. bassiana was observed to induce higher inhibition rates, when EPF isolates developed in Petri dish 2 days before the pathogen.
Publisher
Springer Science and Business Media LLC
Subject
Insect Science,Plant Science,Agronomy and Crop Science,Ecology
Reference28 articles.
1. Agrios GN (2005) Plant Pathology, 5th edn. Elsevier Academic Press, San Diego
2. Barra- Bucarei L, Iglesias AF, González MG, Aguayo GS, Fernández JC, Castro JF, Campos JO (2020) Antifungal activity of Beauveria bassiana endophyte against Botrytis cinerea in two solanaceae crops. Microorganisms 8(1):65. https://doi.org/10.3390/microorganisms8010065
3. Baydar R, Güven Ö, Karaca I (2016) Occurrence of entomopathogenic fungi in agricultural soils from Isparta Province in Turkey and their pathogenicity to Galleria mellonella (L.) (Lepidoptera: Pyralidae) larvae. Egypt J Biol Pest Control 26(2):323–327
4. Bejarano-Alcazar J, Blanco LMA, Melero V, Jimenez Diaz RM (1995) Influence of inoculum density of defoliating and nondefoliating pathotypes of V. dahliae on epidemics of Verticillium wilt of cotton in southern Spain. Phytopathol 85:1474–1481. https://doi.org/10.1094/Phyto-85-1474
5. Bell DK, Well HD, Markham CR (1982) In vitro antagonism of Trichoderma spp. against six fungal plant pathogens. Phytopathol 72:379–382. https://doi.org/10.1094/Phyto-72-379
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献