Convolvulus arvensis: A new natural alternative host for ‘Candidatus Phytoplasma australasia’ associated with a chickpea phyllody disease in Pakistan

Pervaiz Akhtar, Khalid; Ullah, Najeeb; Mahmud Shah, Tariq

doi:10.48311/jcp.2024.1666

Convolvulus arvensis: A new natural alternative host for ‘Candidatus Phytoplasma australasia’ associated with a chickpea phyllody disease in Pakistan

https://doi.org/10.48311/jcp.2024.1666

Volume 13, Issue 2
June 2024

Pages 209-214

Document Type : Brief Communication

Authors

K. Pervaiz Akhtar ¹

N. Ullah ¹

T. Mahmud Shah ²

¹ Plant Protection Division, NIAB, Faisalabad, Pakistan.

² Plant Breeding and Genetics Division, NIAB, Faisalabad, Pakistan.

Abstract

Chickpea is an important pulse crop extensively grown in the arid and semi-arid areas of Pakistan. In April 2019, during routine data collection from chickpea fields in NIAB, Faisalabad, a few Convolvulus arvensis plants were observed with symptoms similar to phytoplasma infection. Four symptomatic and two asymptomatic C. arvensis samples were tested for phytoplasma presence using nested-PCR. BLASTn analysis of the obtained sequence and constructed phylogenetic tree confirmed that the detected phytoplasma is clustering with ‘Candidatus Phytoplasma australasia’ subgroup phytoplasma, which was previously reported as associated with a phyllody disease in chickpea and many other crops in Pakistan. The present study reports that, for the first time, C. arvensis is a new host for this phytoplasma in Pakistan, which may act as a primary source of spreading it in important crops.

Keywords

Field bindweed

phyllody

virescence

16SrII-D

Subjects

Plant Pathogen Biology

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