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Showing 3 results for Globodera
Ten Useful Penicillium Species
Mehdi Sadravi, Mahya Rahimizadeh,
Volume 5, Issue 1 (2-2016)
Abstract

Sadravi  M. & Rahimizadeh  M. 2016. Ten  useful  Penicillium species. Plant Pathology Science 5(1):1-13.

Penicillium species have saprophytic live on plants debris, in the soil and also on some plant products, fresh and juicy damaged fruits as well as the storage fruit and grains.  They can characterized by studying the features of their colony, conidiophores, phialids  and conidia on selective culture media. The ability of some isolates of P. aurantiogriseum, P. bilaiae, P. chrysogenum, P. citrinum, P. funiculosus, P. glabrum, P. griseofulvum, P. oxalicum, P. purpurogenum and P. simplicissimum to control plants diseases such as Fusarium and Verticillium wilt of tomato, pulse white and gray molds, brown rot and blight twig of peach, late blight and cyst of potato has been proved. They also can act as plant growth promoter. Key  morphological characteristics of  these ten species of Penicillium  is described in this paper. Most of these species are reported from Iran, thus identification and use of the efficient isolates of them can be suggested in management of plants diseases or in enhancement of plants growth programs. 


Distribution and Population Density of Cereal Cyst Nematode in Ardabil Province
Laleh Ebrahimi, Zahra Tanhamaafi, Hossein Karbalaei Khiavi , Gorban Didehbaz Moghanlo, Yahya Azarmi, Rauf Zamani,
Volume 8, Issue 2 (9-2019)
Abstract
Ebrahimi L, TanhaMaafi Z, KarbalaeiKhiavi H, Didehbaz G, Azarmi Y and Zamani R (2019) Distribution and population density of cereal cyst nematode in Ardabil province. Plant Pathology Science 8(2):9-15. DOI: 10.2982/PPS.8.2.9
Introduction: Cereal cyst nematodes (CCN), Heterodera species, are important parasitic nematodes of cereal. Potato cyst nematodes (PCN), Globodera species, are also serious pests of potato world-wide. Continuous monitoring of these nematodes is necessary to prevent their damage to their host plants. This study was conducted to determine the distribution and density of these nematodes in Ardabil province, northwest of Iran, where potatoes are planted in rotation with cereals. Materials and Methods: One hundred and two soil samples were collected from potato fields in the suburbs of Ardebil, Nair and Namin cities in the first year, and 116 soil samples were collected from the wheat fields that were cultivated in the rotation with potato in the second year. The samples were transferred to the laboratory and examined for cyst nematodes. After isolating the cysts, identification of the species was performed based on morphological and morphometrical characteristics of the cysts and the second stage larvae. Results: Examination of the collected samples in both of two years indicated the presence of CCN in some soil samples, but PCN were not observed in none of the soil samples. The morphological and morphometrical data of isolated cereal cysts and comparison with valid identification keys led to the identification of Heterodera filipjevi. Mean numbers of the cysts with eggs and larvae in those samples that were collected in the first and second year were respectively 0.76 and 0.11 in 100 g of the soil. Wheat fields of Ardebil had the highest and fields of Nair had the least number of cyst nematode.  Conclusions: The results of this study showed that some of the wheat fields in the province were infected with H. filipjevi and potato fields were not infected with any cyst nematode.

Introduction of eight fungi isolated from potato golden cyst nematode in Iran
Khadijeh Abbasi, Saeed Afzalinia,
Volume 11, Issue 2 (9-2022)
Abstract
Abbasi K, Afzalinia S (2022) Introduction of eight fungi isolated from potato golden cyst nematode in Iran. Plant Pathology Science 11(2):22-31.  
 Doi: 10.2982/PPS.11.2.22
 
Introduction: The golden cyst nematode, Globodera rostochiensis, is considered as one of the most damaging potato pathogens in the world. Considering the skin composition of cyst nematodes and the ability of some fungi to produce enzymes that decompose it, this research was conducted to identify the fungi associated with potato cyst nematode. Materials and Methods: Eighty-six fungal isolates infecting potato golden cyst nematode in Hamedan province in western Iran were isolated and purified and identified based on morphological characteristics by valid keys. Results: Eight species of fungi belonging to three genera Alternaria, Clonostachys, Fusarium were isolated and identified from potato golden cyst nematode. The highest frequency was related to different species of Fusarium. Conclusion: The morphological characteristics of these eight fungi have been described and illustrated.

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