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Wyszukujesz frazę "causal agent" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Molecular identification of pathogenic Fusarium species, the causal agents of tomato wilt in western Iran
Autorzy:
Chehri, K.
Powiązania:
https://bibliotekanauki.pl/articles/66185.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
molecular identification
pathogen
Fusarium
causal agent
tomato
Lycopersicon esculentum
wilt pathogen
pathogenicity
phylogenetic analysis
Iran
Opis:
Fusarium species are causal agents of fungal diseases occurring frequently in numerous agriculturally important plants, including potato, garlic and are one of the common pathogens of tomato, causing root rot in the west part of Iran. Therefore, the objectives of this study were to isolate and identify disease-causing Fusarium species from infected tomatoes based on the morphological and molecular characteristics. Twenty-five isolates of Fusarium were obtained from infected root of tomato plants collected from the fields in different regions of western Iran. Based on morphological features, the strains were classified into four following Fusarium species: F. oxysporum, F. redolens, F. proliferatum and F. verticillioides. The phylogenetic trees based on tef1 and tub2 dataset clearly distinguished closely related species. All of the isolates were evaluated for their pathogenicity on healthy tomato seedlings in the greenhouse. This is the first report on molecular identification of Fusarium species isolated from tomato plants cultivated in Iran.
Źródło:
Journal of Plant Protection Research; 2016, 56, 2
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phenotypic and molecular characterization of the causal agent of chafer beetle mortality in the wheat fields of the Kurdistan province, Iran
Autorzy:
Karimi, K.
Arzanlou, M.
Ahari, A.B.
Ghazi, M.M.
Powiązania:
https://bibliotekanauki.pl/articles/65470.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phenotypic characteristics
molecular characteristics
causal agent
chafer beetle zob.scarab beetle
Anisoplia austriaca
scarab beetle
mortality
wheat field
Kurdistan region
Iran
Opis:
We report the first case of chafer beetle [Anisoplia austriaca (Herbst 1783)] mortality caused by Actinomucor elegans var. elegans in wheat fields of the Kurdistan province, Iran. For three years, dead larvae of Anisoplia austriaca were collected from wheat fields of the Kurdistan province. Similar isolates of a fast-growing fungus were recovered from all samples. The fungal isolates were identified as A. elegans var. elegans based on morphological and cultural characteristics. The identity of the species was further confirmed using sequence data of the ITS (Internal Transcribed Spacer) region of ribosomal DNA. Koch’s postulates were fulfilled by the inoculation of the larvae of A. austriaca and Galleria mellonella (Linnaeus, 1758) (as the model insect) using the spore suspension of A. elegans var. elegans. The viability of sporangiospores was evaluated using a spore dilution technique on germination medium. The results on the pathogenicity (100% mortality in A. austriaca larvae) and viability tests (germination: 95.45%) demonstrated that A. elegans var. elegans can be considered as a potential biocontrol agent against the chafer beetle. Field experiments are still required to evaluate the capacity of A. elegans as a biological control agent.
Źródło:
Journal of Plant Protection Research; 2015, 55, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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