Aphids on Aphid-Susceptible Cultivars Have Easy Access to Turnip Mosaic Virus, and Effective Inoculation on Aphid-Resistant Cultivars of Oilseed Rape (Brassica napus)

Plant viruses improve transmission efficiency by directly and indirectly influencing vector behavior, but the impact of plant cultivars on these modifications is rarely studied. Using electropenetrography (EPG) technology, a comparative study effects turnip mosaic virus (TuMV) infection quantitative probing behaviors cabbage aphid (Brevicoryne brassicae) was conducted two oilseed rape (‘Deleyou6’ ‘Zhongshuang11’). Compared to mock-inoculated plants, aphids infected plants increased frequency brief probing, cell penetration, salivation. Additionally, ‘Deleyou6’ prolonged penetration time decreased ingestion, not ‘Zhongshuang11’, suggesting that were more likely acquire TuMV aphid-susceptible cultivar than resistant cultivars. also affected behavior directly. Viruliferous reduced pathway duration, secreted saliva, ingested less sap non-viruliferous aphids. In comparison with aphids, viruliferous started first probe earlier frequencies aphid-resistant ‘Zhongshuang11’. Based observations, can be inoculated efficiently ‘Zhongshuang11’ ‘Deleyou6’. Although resistance may influence does impede effectively.