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3. List of contributors

Author

Saman Abeysinghe, Aysha Al-Ghaithi, Abdullah M. Al-Sadi, Ali M. Al-Subhi, Şevket Alp, Mehdi Azadvar, M. Kochu Babu, Assunta Bertaccini, A.I. Bhat, Seyyed Alireza Esmaeilzadeh-Hosseini, Mohammad Mehdi Faghihi, Mona Gazel, Peiwen Gu, Vinayak Hegde, Chamran Hemmati, Trinh Xuan Hoat, Manoj Kumar Kalita, Kiran Kirdat, Nagendran Krishnan, Manish Kumar, Prabhat Kumar, Shweta Kumari, Zhengnan Li, null Madhupriya, Smriti Mall, R. Manimekalai, Carmine Marcone, Surabhi Mitra, Sajad un Nabi, Amin Nikpay, K. Nithya, Hatice Diğdem Oksal, Priyam Panda, Koshlendra Kumar Pandey, B. Parameswari, Govind Pratap Rao, Mina Rastgou, Manish Ravi, Madem Gurivi Reddy, Mohammad Salehi, Shivaji Sathe, Çiğdem Ulubaş Serçe, Gülşen Sertkaya, Akanksha Singh, Jagdish Singh, Hikmet Murat Sipahioğlu, K. Sumi, R. Sundararaj, Kadriye Çağlayan, Bhavesh Tiwarekar, A.K. Tiwari, Mustafa Usta, Pandian Valarmathi, K. Vemana, R. Viswanathan, Yunfeng Wu, Amit Yadav, and Maryam Ghayeb Zamharir

Published
2023
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7. Confirmation of the association of an aster yellows phytoplasma with flat stem and witches’ broom disease of Hibiscus cannabinus in the North East Region of India

Author

Madem Gurivi Reddy, Amar Bahadur, Manish Ravi, Assunta Bertaccini, Govind Pratap Rao, and Rao G.P., M.G. Reddy, M. Ravi, A. Bahadur, A. Bertaccini

Subjects
Microbiology (medical), Broom, Cell Biology, North east, Biology, biology.organism_classification, Hibiscus, Aster yellows, 16SrI-B phytoplasma subgroup, nested PCR assay, virtual RFLP analysis, Infectious Diseases, Phytoplasma, “kenaf”, “mesta”, Botany, Parasitology, Ecology, Evolution, Behavior and Systematics
Abstract

Hibiscus cannabinus also known as “kenaf” is a valuable fiber and medicinal plant growing in tropical and temperate areas of the world. During October 2019, symptoms of flat stem and witches’ broom were observed on 12% of the plants grown in the Agriculture College campus of Lembucherra, Tripura state of India. Samples from four symptomatic and two symptomless plants were subjected to DNA extraction and used as template in nested PCR assays with universal phytoplasma 16S rRNA gene primers. Amplification of about 1.25 kb product was obtained only from symptom-bearing H. cannabinus plants, but not from the asymptomatic ones. These PCR products were purified, cloned and sequenced. The R16F2n/R16R2 gene sequences of the identified phytoplasma strains showed 99.2-100% sequence identity with ‘Candidatus Phytoplasma asteris’ strains also supported by phylogenetic analyses. The virtual RFLP profiles of these phytoplasma strains were identical to each other and to those enclosed in the 16SrI-B subgroup with a similarity coefficient of 1.00. This is the first report of the association of ‘Ca. P. asteris’ with a “kenaf” flat stem and witches’ broom disease in the world.

Published
2020

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