<i>Phytophthora melonis</i> Associated with Fruit and Vine Rot Disease of Pointed Gourd in India as Revealed by RFLP and Sequencing of ITS Region

Guharoy, S.; Bhattacharyya, Sukanta; Mukherjee, S. K.; Mandal, Namita; Khatua, D. C.

doi:10.1111/j.1439-0434.2006.01155.x

Cited by 22 publications

(10 citation statements)

References 10 publications

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“…In addition to cucumber, P . melonis infects other cucurbits such as Cucurbita pepo , Cucumis melo , Benincasa hispida [ 38 ], and Trichosanthes dioica [ 39 ]. It has also been reported on Pistacia vera causing blight, dieback, root rot, foot rot and crown rot resulting in gummosis [ 28 ].…”

Section: Discussionmentioning

confidence: 99%

Diversity of Phytophthora Species from Declining Mediterranean Maquis Vegetation, including Two New Species, Phytophthora crassamura and P. ornamentata sp. nov.

et al. 2015

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The Mediterranean basin is recognized as a global biodiversity hotspot accounting for more than 25,000 plant species that represent almost 10% of the world’s vascular flora. In particular, the maquis vegetation on Mediterranean islands and archipelagos constitutes an important resource of the Mediterranean plant diversity due to its high rate of endemism. Since 2009, a severe and widespread dieback and mortality of Quercus ilex trees and several other plant species of the Mediterranean maquis has been observed in the National Park of La Maddalena archipelago (northeast Sardinia, Italy). Infected plants showed severe decline symptoms and a significant reduction of natural regeneration. First studies revealed the involvement of the highly invasive wide-host range pathogen Phytophthora cinnamomi and several fungal pathogens. Subsequent detailed research led to a better understanding of these epidemics showing that multiple Phytophthora spp. were involved, some of them unknown to science. In total, nine Phytophthora species were isolated from rhizosphere soil samples collected from around symptomatic trees and shrubs including Asparagus albus, Cistus sp., Juniperus phoenicea, J. oxycedrus, Pistacia lentiscus and Rhamnus alaternus. Based on morphological characters, growth-temperature relations and sequence analysis of the ITS and cox1 gene regions, the isolates were identified as Phytophthora asparagi, P. bilorbang, P. cinnamomi, P. cryptogea, P. gonapodyides, P. melonis, P. syringae and two new Clade 6 taxa which are here described as P. crassamura sp. nov. and P. ornamentata sp. nov. Pathogenicity tests supported their possible involvement in the severe decline that is currently threatening the Mediterranean maquis vegetation in the La Maddalena archipelago.

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Section: Discussionmentioning

confidence: 99%

Diversity of Phytophthora Species from Declining Mediterranean Maquis Vegetation, including Two New Species, Phytophthora crassamura and P. ornamentata sp. nov.

et al. 2015

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“…The major changes taking place during its storage include loss in weight due to moisture loss, degradation of chlorophyll, change in colour, loss of turgidity, change in texture, loss of nutritional value and reduction in marketability. Fruit surface wrinkling is more prominent in pointed gourd even with a low water loss (Guharoy, Bhattacharyya, Mukherjee, Mandal, & Khatua, 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of packaging conditions on quality and shelf-life of fresh pointed gourd (Trichosanthes dioica Roxb.) during storage

Sahoo

Bal

Pal

et al. 2015

Food Packaging and Shelf Life

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“…Actively growing mycelial plugs were inoculated in 50 ml of potato dextrose broth and incubated for 5 days at 28°C. High quality genomic DNA isolation was done for ten isolates of R. solani according to Guha et al (2006). Isolated DNA was quantified on 1% Agarose gel.…”

Section: Isolation Of Genomic Dnamentioning

confidence: 99%

Characterization of molecular variability in Rhizoctonia solani isolates from different agro-ecological zones by random amplified polymorphic DNA (RAPD) markers

Banerjee¹

2012

Afr. J. Biotechnol.

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Rhizoctonia solani is a plant pathogenic fungus which is the causal organism of sheath blight of rice.Yield losses due to the sheath blight, caused by R. solani Kuhn is reported to range from 5.2 to 50%, depending on environmental conditions, crop stages at which the disease appears, cultivation practices and cultivars in India. Rice sheath blight has become a major constraint to rice production during the last two decades. In India, breeding for sheath blight resistant cultivars has been a priority area of research. Sheath blight disease caused by R. solani Kuhn was first recorded as minor disease of rice in West Bengal (a major rice growing province of India), later the disease was referred to as a major one in West Bengal, probably second only to blast in its crop damage potential. The present work was done to assess the molecular variability in 22 isolates of sheath blight fungus, collected from four different ecological regions of West Bengal, ranging from coastal, alluvial, red-lateritic to terai belts using random amplified polymorphic DNA (RAPD) markers. A total of 267 reproducible and scorable polymorphic bands ranging approximately as low as 200 bp to as high as 1500 bp were generated with eight RAPD primers. The similarity values of RAPD profiles ranged from 0.41 to 0.94 with an average of 0.67 among all the isolates. Most of the isolates collected from similar agro-ecological location clustered together in the present study. Our results indicate high genetic variability in the pathogen population in different epidemiological regions of West Bengal. Our study also reveals host-specific banding profile for the two isolates RS21 and RS22, which were collected from cabbage and were confirmed to belong to anastomosis group 4 (AG4).

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Phytophthora melonis Associated with Fruit and Vine Rot Disease of Pointed Gourd in India as Revealed by RFLP and Sequencing of ITS Region

Cited by 22 publications

References 10 publications

Diversity of Phytophthora Species from Declining Mediterranean Maquis Vegetation, including Two New Species, Phytophthora crassamura and P. ornamentata sp. nov.

Diversity of Phytophthora Species from Declining Mediterranean Maquis Vegetation, including Two New Species, Phytophthora crassamura and P. ornamentata sp. nov.

Effect of packaging conditions on quality and shelf-life of fresh pointed gourd (Trichosanthes dioica Roxb.) during storage

Characterization of molecular variability in Rhizoctonia solani isolates from different agro-ecological zones by random amplified polymorphic DNA (RAPD) markers

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