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الرئيسية > Potential Impacts of Bioagents...>الوصف

Potential Impacts of Bioagents to Improve Strawberry to Plant Disease Resistance

المصدر: المجلة الجامعة
الناشر: جامعة الزاوية - مركز البحوث والدراسات العليا
المؤلف الرئيسي: Abied, Mohamed Ali (Author)
مؤلفين آخرين: Ghazala, Alsadek Mohamed (Co-Author) , Abuhligha, Eltaher Ahmed (Co-Author)
المجلد/العدد: مج23, ع1
محكمة: نعم
الدولة: ليبيا
التاريخ الميلادي: 2021
الشهر: مارس
الصفحات: 53 - 76
رقم MD: 1265782
نوع المحتوى: بحوث ومقالات
اللغة: الإنجليزية
قواعد المعلومات: EduSearch, EcoLink, IslamicInfo, AraBase, HumanIndex
مواضيع:
المحاصيل الفراولة | العناصر الغذائية | التربية الزراعية
كلمات المؤلف المفتاحية:
Macrophomina Phaseolina | Trichoderma Harzianum | Strawberry Plant | Subtilis | Bacillus | Disease Index | Antioxidant Enzymes | Disease Symptoms
رابط المحتوى:

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المستخلص: The current study was conducted to investigate the ability of two fungal strains Trichodermaharzianum (Tl), T.viride (T2) and two bacterial strains, Bacillus subtilis (Bl), Streptomyces griseus (SI) to antagonize Macrophomina phaseolina the causal agent of Strawberry (Fragaria ananossa Duchesne) root rot disease. Induction of plant defense to the pathogen was also studied. Disease symptoms, disease index and phytochemical indicators of plant resistance were recorded. All experiments were carried out at Techogreen Agricultural Company, Ismailia, Egypt. Maximum growth inhibition of M. phaseolina was achieved by T. harzianum(2.16 mm)followed by T.viride (T2)(2.66mm ) and B. subtilis (3 mm ), meanwhile, S. griseus recorded the lowest antagonistic effect (3.16 mm). T. viride as well as, B. subtilis showed highly significant reduction in percentage of disease infection 10 %, followed by Streptomyces griseus and T. harzianum (20 %), compared to 70% of infected control. Application of all tested inducers caused highly significant increases in chlorophyll A and chlorophyll B as well as carotenoids. The positive responses of the tested elicitors were extended to increase total phenol and activities of antioxidant enzymes (superoxide dismutase, Peroxidase, Polyphenol oxidase and catalase). At the same time, the results showed that strawberry infected plants treated with elicitors showed variation in number, molecular weight of protein bands as well as variation in number, relative mobility and density of enzymes bands of polypeptide peroxidase and polyphenol oxidase.

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