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Molecular detection and phylogeny of phytoplasmas affecting cycads in India.
Kumar, S.; Singh, V.; Lakhanpaul, S.; British Society for Plant Pathology, Reading, UK, New Disease Reports, 2012, 26, pp 27, 6 ref. Recently, abnormal yellowing symptoms were observed on two cycad species of the order Cycadales: Cycas revoluta (family Cycadaceae) and Zamia furfuracea (family Zamiaceae), grown as ornamental plants in gardens of the North Delhi region, India. C. revolut...
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First report of Mirabilis and Chrysanthemum little leaf associated with 'Candidatus Phytoplasma aurantifolia' in India.
Kumar, S.; Singh, V.; Lakhanpaul, S.; Springer, Dordrecht, Netherlands, Australasian Plant Disease Notes, 2012, 7, 1, pp 71-73, 8 ref. Mirabilis jalapa and Chrysanthemum sp. plants showing little leaf symptoms were observed during 2010 in New Delhi, India. Nested-PCR assays using phytoplasma specific 16S ribosomal DNA primers resulted in amplicons with sequence similarity to members of 1...
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First report of a 'Candidatus Phytoplasma aurantifolia' isolate associated with a yellowing disease of Barleria prionitis.
Kumar, S.; Singh, V.; Lakhanpaul, S.; British Society for Plant Pathology, Reading, UK, New Disease Reports, 2012, 25, pp 8, 4 ref. B. prionitis plants showing symptoms of yellowing, little leaf and early senescence were observed during June 2010 at the Botanical Garden of Delhi University, India. Five plants with symptoms indicating phytoplasma infection and two symptomless plants we...
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First report of 'Candidatus Phytoplasma asteris' associated with green ear disease of bajra (pearl millet) in India.
Kumar, S.; Singh, V.; Lakhanpaul, S.; British Society for Plant Pathology, UK, New Disease Reports, 2010, 22, pp Article 27, 4 ref. Pearl millet fields showing distinctly affected plants with bushy tops were spotted in September 2009 in Badaun, Uttar Pradesh, India. Plants exhibited a broom-like appearance of panicles bearing leafy structures in place of florets and panicles looked mu...
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First report of 'Candidatus Phytoplasma asteris' (16SrI) associated with little leaf of cotton and luffa in India.
Kumar, S.; Singh, V.; Lakhanpaul, S.; CSIRO Publishing, Collingwood, Australia, Australasian Plant Disease Notes, 2010, 5, 1, pp 117-119, 8 ref. Cotton and luffa plants with little leaf symptoms were observed during February 2010 at New Delhi, India. Nested polymerase chain reaction with phytoplasma 16S rDNA-specific primers efficiently detected the pathogen in the diseased plants. Sequence compar...
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First report of Crotalaria spectabilis fasciation associated with 'Candidatus Phytoplasma asteris' in India.
Kumar, S.; Singh, V.; Lakhanpaul, S.; American Phytopathological Society (APS Press), St. Paul, USA, Plant Disease, 2010, 94, 10, pp 1265, 4 ref. Fasciated rattlebox (C. spectabilis) were sighted in fields in New Delhi (India) in February 2010, with ~99% of the examined plants symptomatic. Symptoms included flattening of stems in descending gradient of severity from the apex to the base of each aff...
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