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Viruses are a significant challenge in global agriculture. The emergence and re-emergence of viruses in horticultural and field crops continuously threaten crop cultivation in tropical, subtropical, and temperate regions worldwide. Tomato leaf curl New Delhi virus (ToLCNDV), identified in 1995, has emerged as a significant challenge in crop cultivation. This virus has been reported in 23 countries, with Asia and Europe accounting for the majority of reported occurrences. The virus has been extensively intercepted from horticultural crops such as cucurbits, tomato, and potato. The recent outbreak of ToLCNDV in China on the cucurbit host caused a loss of $15 million. In potatoes, apical leaf curl disease caused by ToLCNDV-potato is a significant threat to processing and table potatoes. The wider spread and adaptability of ToLCNDV is due to its nature of transmission through the whitefly vector, seed, mechanically, and pollen. Extensive work has been done on its pathogenicity and host-pathogen interactions. Amino acid substitution-based study confirmed the role of proteins in mechanical transmission ability. This chapter highlights the occurrence of ToLCNDV in diverse hosts, the yield loss, spread in continents and the mechanism of transmission.

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Contemporary Status of Occurrence, Spread, and Yield Loss Due to Tomato Leaf Curl New Delhi Virus in Global Crop Cultivation

  • 章节

  • 发表日期：

    2026年

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  • Ravinder Kumar,
  • Rahul Kumar Tiwari,
  • Milan Kumar Lal,
  • Sayanti Guha Majumdar,
  • Kirtika Swaraj,
  • Ashutosh Kumar Mall,
  • Manoj Kumar Tripathi,
  • Dinesh Singh,
  • Gyanendra Singh

摘要

Viruses are a significant challenge in global agriculture. The emergence and re-emergence of viruses in horticultural and field crops continuously threaten crop cultivation in tropical, subtropical, and temperate regions worldwide. Tomato leaf curl New Delhi virus (ToLCNDV), identified in 1995, has emerged as a significant challenge in crop cultivation. This virus has been reported in 23 countries, with Asia and Europe accounting for the majority of reported occurrences. The virus has been extensively intercepted from horticultural crops such as cucurbits, tomato, and potato. The recent outbreak of ToLCNDV in China on the cucurbit host caused a loss of $15 million. In potatoes, apical leaf curl disease caused by ToLCNDV-potato is a significant threat to processing and table potatoes. The wider spread and adaptability of ToLCNDV is due to its nature of transmission through the whitefly vector, seed, mechanically, and pollen. Extensive work has been done on its pathogenicity and host-pathogen interactions. Amino acid substitution-based study confirmed the role of proteins in mechanical transmission ability. This chapter highlights the occurrence of ToLCNDV in diverse hosts, the yield loss, spread in continents and the mechanism of transmission.