How Cabbage Aphids Brevicoryne brassicae (L.) Make a Choice to Feed on Brassica napus Cultivars

Purification and characterization of myrosinase from the cabbage aphid (Brevicoryne brassicae), a brassica herbivore.

Aphids are among the most serious insect pests of agricultural crops in the world. They often have specific hosts, and the cabbage aphid (Brevicoryne brassicae) is a specialist on Cruciferae. It has previously been described that certain insects contain the enzyme myrosinase (EC 3.2.3.1), which is considered an important defence enzyme of crucifers. Myrosinase was purified to homogeneity from c...

Factors Affecting Abundance and Damage Caused by Cabbage Aphid, Brevicoryne brassicae on Four Brassica Leafy Vegetables: Brassica oleracea var. Acephala, B. chinense, B. napus and B. carinata

Resistance of four brassica leafy vegetables: kale, Chinese cabbage, rape and Ethiopian mustard to cabbage aphid, Brevicoryne brassicae (L.) was studied in cage experiments at the Botswana College of Agriculture, Gaborone, Botswana. A completely randomised design with cultivars as treatments and four replicates per treatment was used. One newly laid nymph was placed on each of the four potted p...

Purification and characterisation of a non-plant myrosinase from the cabbage aphid Brevicoryne brassicae (L.).

Plant myrosinases and glucosinolates constitute a defence system in cruciferous plants towards pests and diseases. We have purified for the first time a non-plant myrosinase from the cabbage aphid Brevicoryne brassicae (L.) to homogeneity. The protein was N-terminally blocked and protease (trypsin and lys c) degradation gave peptides of which five were sequenced. The protein is a dimer with sub...

بررسی مقاومت 5 رقم کلزا (Brassica napus L.) به شته مومی کلم (Brevicoryne brassicae L.)

بررسی مقاومت 48 ژنوتیپ کلزا .Brassica napus L به شته مومی کلم Brevicoryne brassicae (L.)

علی‌رغم تلاش‌های گسترده‌ای که در سراسر دنیا برای کنترل شته مومی کلم Brevicoryne brassicae (L.) صورت می‌گیرد، این آفت هنوز یکی از مهمترین آفات گیاهان خانواده Brassicaceae می‌باشد. این تحقیق طی سال‌های 1381-1382 به­ منظور بررسی وجود مقاومت در 48 ژنوتیپ کلزا به شته مومی کلم Brevicoryne brassicae (L.) در ایستگاه تحقیقات کشاورزی بروجرد اجرا گردید. در سال اول تعداد هشت ژنوتیپ نسبت به شته مومی مقاومت ...