نتایج جستجو برای: alternaria alternata f sp lycopersici
تعداد نتایج: 422473 فیلتر نتایج به سال:
میوههای گوجهفرنگی هم در مزرعه و هم در انبار در معرض پوسیدگیهای میکروبی پس از برداشت قرار دارند. در این پژوهش پس از جداسازی عوامل پوسیدگیگوجهفرنگی، دو باکتری بیوکنترل Bacillus subtilis UTB96 و Pseudomonas fluorescens UTPf68 که تولید نیمهانبوه آنها در بیوراکتور صنعتی با موفقیت به انجام رسیده بود، در دو حالت کشت متقابل و بررسی روی میوهها، بر این بیمارگرها بررسی شدند.طبق نتایج بهدستآمده از ...
The aim of this study was to determine the effect of 6 common soil fungi species: Alternaria alternata (Fr.) Keissl., Aspergillus candidus Link, Penicillium chrysogenum Thom, P. commune Thom, Trichothecium roseum (Pers.) Link and Ulocladium sp., on the hatching of miracidia, i.e., free living larvae of liver fluke (Fasciola hepatica). To this end, the eggs of F. hepatica were incubated in water...
Ocimum gratissimum L. or clove basil, belongs to the Lamiaceae family, has various desirable uses and applications. Beyond its aromatic, seasoning, and medicinal applications, this plant also has antimicrobial activity. This study was aimed at assessing the antifungal activity, yield, and composition of the essential oil (EO) of O. gratissimum. The species was cultivated in garden beds with dys...
The in vitro biocontrol ability of Trichoderma harzianum on the phytopathogen Alternaria alternata improved in the presence of the growth regulators gibberellic acid (GA3), or indolacetic acid (IAA) or benzylaminopurine (BAP) or foliar nutrient at concentrations similar or higher than those used at the field level. These plant hormones decreased the secretion of endopolygalacturonase (endo-PG) ...
The present study aimed at the molecular characterization of pathogenic and non pathogenic F. oxysporum f. sp. lycopersici strains isolated from tomato. The causal agent isolated from symptomatic plants and soil samples was identified based on morphological and molecular analyses. Pathogenicity testing of 69 strains on five susceptible tomato varieties showed 45% of the strains were highly viru...
سیانوباکتریها بهعلت تولید انواع متابولیتهای ثانویه و ترکیبات ضدمیکروبی موردتوجه بسیاری از محققان قرارگرفتهاند. این تحقیق بهمنظور بهینهسازی محیط کشت BG11 با هدف افزایش تأثیر ضدقارچی سیانوباکتری Cyanobacteriumsp.PGU1 علیه دو قارچ بیماریزای گیاهی Fusarium oxysporum f. sp. lycopersici و Rhizoctonia solani AG2-2-IIIB انجام شد. سیانوباکتری جداسازیشده از آب خلیجفارس با دو روش ریختشناختی (مو...
Alternaria alternata f.sp. Lycopersici (AAL) toxin induces programmed cell death (PCD) in susceptible tomato (Solanum lycopersicum) leaves. Jasmonate (JA) promotes AAL toxin induced PCD in a COI1 (coronatine insensitive 1, JA receptor)-dependent manner by enhancement of reactive oxygen species (ROS) production. To further elucidate the underlying mechanisms of this process, we performed a compa...
The endoplasmic reticulum (ER)-resident BAX INHIBITOR-1 (BI-1) protein is one of a few cell death suppressors known to be conserved in animals and plants. The function of BI-1 proteins in response to various biotic and abiotic stress factors is well established. However, little is known about the underlying mechanisms. We conducted co-immunoprecipitation (co-IP) experiments to identify Arabidop...
Alternaria brown spot is one of the most important diseases of tangerines and their hybrids worldwide. Recently, outbreaks in Mediterranean areas related to susceptible cultivars, refocused attention on the disease. Twenty representatives were selected from a collection of 180 isolates of Alternaria spp. from citrus leaves and fruit. They were characterized along with reference strains of Alter...
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