{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T07:18:49Z","timestamp":1772003929361,"version":"3.50.1"},"reference-count":62,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2023,6,15]],"date-time":"2023-06-15T00:00:00Z","timestamp":1686787200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pest Management Science"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Pepper blight, caused by <jats:italic>Phytophthora capsici<\/jats:italic>, is a destructive soilborne disease, which poses a serious threat to pepper, <jats:italic>Capsicum annuum<\/jats:italic> L., production. Chemical fungicides, which mainly are used to control pepper blight, have a negative effect on the environment, rendering biological control as a promising alternative to maintain the balance between ecology and pest management. The purpose of this study was to screen the biocontrol bacteria, reduce the dosage of fungicides and increase the stability of biocontrol bacteria, and to find the mixing ratio of biocontrol bacteria and fungicides giving the best control effect.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We isolated actinomycetes strains from the soil surrounding the roots of healthy pepper plants amongst field\u2010grown plants infected with <jats:italic>P.\u2009capsici<\/jats:italic>. Of these, <jats:italic>Streptomyces albus<\/jats:italic> XJC2\u20101 showed a strong inhibition effect on the growth of <jats:italic>P.\u2009capsici<\/jats:italic>, with an inhibition rate of \u226485%. XJC2\u20101 effectively inhibited the formation of sporangium and release of zoospores of <jats:italic>P.\u2009capsici<\/jats:italic> as well as directly destroyed its hyphae, to achieve the inhibitory effect. Transcriptomic profiling of pepper leaves, postirrigation of plants with the XJC2\u20101 fermentation broth, revealed upregulation of genes related to the photosynthesis pathway in pepper. Furthermore, XJC2\u20101 treatment improved the net photosynthetic rate and intercellular CO<jats:sub>2<\/jats:sub> concentration, thereby improving the pepper plant's resistance to pathogens. The combination of XJC2\u20101 with the fungicide dimethomorph (8\u2009\u03bcg\u2009mL<jats:sup>\u22121<\/jats:sup>) displayed strong synergism in inhibition of <jats:italic>P.\u2009capsici<\/jats:italic> infection, with a control efficiency as high as 75.16%, thus providing a basis for its application in the field.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our study demonstrated that <jats:italic>S.\u2009albus<\/jats:italic> XJC2\u20101 inhibited <jats:italic>Phytophthora<\/jats:italic> pathogens from infecting pepper plants and enhanced plant host resistance. The combination of XJC2\u20101 and dimethomorph displayed a more stable and stronger control effect on pepper blight, showing potential for the future application of XJC2\u20101 in the field of biological control. \u00a9 2023 Society of Chemical Industry.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ps.7591","type":"journal-article","created":{"date-parts":[[2023,5,31]],"date-time":"2023-05-31T01:21:43Z","timestamp":1685496103000},"page":"3871-3882","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Additive effect of the <scp><i>Streptomyces albus<\/i><\/scp> XJC2\u20101 and dimethomorph control pepper blight (<scp><i>Capsicum annuum<\/i><\/scp> L.)"],"prefix":"10.1002","volume":"79","author":[{"given":"Meimei","family":"Long","sequence":"first","affiliation":[{"name":"Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection Southwest University  Chongqing 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