نتایج جستجو برای: pythium sp

تعداد نتایج: 121561  

ژورنال: :آفات و بیماریهای گیاهی 0
سعید شیرزادیان مؤسسه تحقیقات گیاهپزشکی کشور، تهران همایون افشاری آزاد مؤسسه تحقیقات گیاهپزشکی کشور، تهران جواد خلقانی مؤسسه تحقیقات گیاهپزشکی کشور، تهران

تأثیر ضد قارچی عصاره های مختلف 23 آرایه بریوفیت شامل 21 گونه خزه و دو گونه هپاتیک (جگرواش) برای نخستین بار در کشور صورت گرفت. بدین منظور، تأثیر عصاره های هر یک از گونه های مورد نظر روی هفت گونه قارچ بیماریزای گیاهی به اسامی:alternaria alternata, f. oxysporum, fusarium solani, macrophomina phaseolina, pythium sp., rhizoctonia solani, وverticillium dahliae  بررسی گردید. جهت انجام این کار، ابتدا ن...

2017
Elham A. Kazerooni Sajeewa S. N. Maharachchikumbura Velazhahan Rethinasamy Hamed Al-Mahrouqi Abdullah M. Al-Sadi

This study examined fungal diversity and composition in conventional (CM) and desert farming (DE) systems in Oman. Fungal diversity in the rhizosphere of tomato was assessed using 454-pyrosequencing and culture-based techniques. Both techniques produced variable results in terms of fungal diversity, with 25% of the fungal classes shared between the two techniques. In addition, pyrosequencing re...

Journal: :Clinical and vaccine immunology : CVI 2009
Ariya Chindamporn Raquel Vilela Kathleen A Hoag Leonel Mendoza

Studies by Western blot analyses have shown that antibodies in the sera of host species infected by Pythium insidiosum recognized several prominent proteins expressed by this fungus-like pathogen. Although these studies have utilized sera from infected patients and relevant local strains of P. insidiosum, the results are difficult to compare because of the lack of method standardization. In an ...

Journal: :Egyptian Journal of Phytopathology (Print) 2021

Pea (Pisum sativum L.) is subjected to attack by certain soil-borne phylogenetic of fungus-like eukaryotic microorganisms such as Pythium debaryanum and fungi Rhizoctonia solani Fusarium which cause damping-off diseases. Isolation associated P. three species Trichoderma was carried out from soil rhizosphere pea plants. Antagonistic effect Rhizobium leguminosarum combined with lignorum, T. longi...

2015
Kanika Sharma

Pythium species are morphologically polymorphic, physiologically unique and ecologically versatile, which make them significant both theoretically and practically. They are ubiquitous in soil and in water, distributed worldwide, and with very diverse host ranges. They include some of the most important and destructive plant pathogens, causing losses of seeds, pre-emergence and post-emergence da...

Journal: :Journal of clinical microbiology 2004
Andrew M Schurko Leonel Mendoza Arthur W A M de Cock James E J Bedard Glen R Klassen

Pythium insidiosum, the only species in the genus that infects mammals, is the etiological agent of pythiosis, a granulomatous disease characterized by cutaneous and subcutaneous lesions and vascular diseases. Accurate diagnosis of pythiosis and identification of its causal agent are often inconsistent with current immunological diagnostic methods. A species-specific DNA probe was constructed b...

2014
Layla Pires Sandra de Moraes Gimenes Bosco Maurício S. Baptista Cristina Kurachi

Pythiosis is an infectious disease caused by Pythium insidiosum, a fungus-like organism. Due to the lack of ergosterol on its cell membrane, antibiotic therapy is ineffective. The conventional treatment is surgery, but lesion recurrence is frequent, requiring several resections or limb amputation. Photodynamic therapy uses photo-activation of drugs and has the potential to be an attractive alte...

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