Aster yellows disease survey in Saskatchewan, Canada, 2001-2006
Phytoplasmas are wall-less prokaryotes belonging to the class Mollicutes. The organisms are obligate parasites and are transmitted by phloem feeding insects, mainly leafhoppers. Aster Yellows (AY) disease in canola is associated with the Since the AY epidemic in canola crops in 2000, AY disease surveys have been conducted annually in oilseed, cereal, and pea crops throughout Saskatchewan, Canada. In 2000, AY disease incidence reached 12％ in canola crops; a few fields in northern Saskatchewan had 30-45％ infected plants. In 2001-2005, AY incidence in canola declined to less than 1％. In 2006, 19 canola fields, 20 cereal fields, four pea fields and two flax fields were surveyed to estimate AY incidence. Plants and populations of M. fascifrons were sampled to investigate the presence and identity of phytoplasmas using PCR technology and DNA sequencing.Results of the 2001-2006 surveys are presented.
Canola cereals aster yellows phytoplasma leafhopper Macrosteles quadrilineatus survey
Chrystel Olivier Brian Galka Gillian Murza Dwayne Hegedus Xiaomeng Peng Ginette Séguin-Swartz Elisabeth Boudon-Padieu Tharcisse Barasubiye
Agriculture andAgri-Food Canada, Saskatoon Research Centre, Saskatoon, Saskatchewan S7N 0X2, Canada INRA-Université de Bourgogne, 21065 Dijon Cedex, France Agriculture and Agri-Food Canada, Eastern Cereal and Oilseed Research Centre, Ottawa, Ontario K1A OC
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
1388-1390
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）