Pea seed-borne mosaic virus: occurrence in faba bean (Vicia faba) and lentil (Lens culinaris) in West Asia and North Africa, and further information on host range, transmission characteristics, and purification uri icon

abstract

  • A pea isolate (SP9-88) from Syria was further characterized. Out of 57 plant species tested, 35 were found susceptible, 19 of which are newly reported hosts of the virus. The virus was transmitted efficiently in the non-persistent manner by five aphid species, especially Myzus persicae. Purification from systemically infected faba bean plants yielded 10-15 mg of purified virus per kg of infected tissue. Sap-inoculation of the food and forage legume species chickpea, faba bean, lentil, pea, Vicia narbonensis, V. sativa, Lathyrus ochrus and L. sativus at flowering stage led to 66.0, 40.5, 44.6, 49.2, 31.7, 7.5, 35.7 and 12.0% yield loss, respectively, and to seed-transmission rates of 0.7, 6.0, 10.8, 1.1, 0.3, 0.2 and 0.4%, respectively. No transmission was detected in chickpea seed embryo axes. However, the virus was detected in the seed coat of PSbMV-infected chickpea at an estimated rate of 1.81%.
  • In a survey for viruses of cultivated legumes in West Asia and North Africa, pea seed-borne mosaic virus (PSbMV) was found in faba bean, lentil and pea. Using ELISA, it was detected in 107 out of 1554 faba bean samples and 40 out of 496 lentil samples with virus-like symptoms collected in Algeria, Egypt, Ethiopia, Jordan, Lebanon, Libya, Morocco, Sudan, Tunisia and Turkey.

publication date

  • 1993
  • 1993