scholarly journals ROLE OF PARASITOIDS AND HOST PLANT TOLERANCE IN CONTROLLING THE CABBAGE APHID, BREVICORYNE BRASSICAE (L.) (HOMOPTERA : APHIDIDAE) ON CANOLA AT EL-MINIA GOVERNORATE- EGYPT

2008 ◽  
Vol 86 (3) ◽  
pp. 931-941
Author(s):  
TOHAMY H. TOHAMY ◽  
AZIZA M. EL-GANTIRY ◽  
MOHAMED I. EL - KHOULY
Keyword(s):  
Host Plant ◽  
Brevicoryne Brassicae ◽  
Plant Tolerance ◽  
Cabbage Aphid

scholarly journals Seed Gamma Irradiation of Arabidopsis thaliana ABA-Mutant Lines Alters Germination and Does Not Inhibit the Photosynthetic Efficiency of Juvenile Plants

Dose-Response ◽  
2020 ◽  
Vol 18 (4) ◽  
pp. 155932582097924
Author(s):  
Darya Babina ◽  
Marina Podobed ◽  
Ekaterina Bondarenko ◽  
Elizaveta Kazakova ◽  
Sofia Bitarishvili ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Growth Response ◽  
Dose Range ◽  
Fine Tuning ◽  
Plant Tolerance ◽  
Inhibitory Effects ◽  
Γ Irradiation ◽  
Photosynthetic Responses ◽  
Mutant Lines

Plant growth response to γ-irradiation includes stimulating or inhibitory effects depending on plant species, dose applied, stage of ontogeny and other factors. Previous studies showed that responses to irradiation could depend on ABA accumulation and signaling. To elucidate the role of ABA in growth and photosynthetic responses to irradiation, lines Col-8, abi3-8 and aba3 -1 of Arabidopsis thaliana were used. Seeds were γ-irradiated using 60Co in the dose range 50-150 Gy. It was revealed that the dose of 150 Gy affected germination parameters of aba3 -1 and Col-8 lines, while abi3-8 line was the most resistant to the studied doses and even showed faster germination at early hours after γ-irradiation at 50 Gy. These results suggest that susceptibility to ABA is probably more important for growth response to γ-irradiation than ABA synthesis. The photosynthetic functioning of 16-day-old plants mainly was not disturbed by γ-irradiation of seeds, and no indication of photosystem II photoinhibition was noticed, revealing the robustness of the photosynthetic system of A. thaliana. Glutathione peroxidase activity and ABA concentrations in plant tissues were not affected in the studied dose range. These results contribute to the understanding of germination and photosynthesis fine-tuning and of mechanisms of plant tolerance to ionizing radiation.

Incidence of the cabbage aphid, Brevicoryne brassicae L. in potato crops in India and its efficiency for transmission of potato virus Yo

2021 ◽  
Author(s):  
Jandrajupalli Sridhar ◽  
Vallepu Venkateswarlu ◽  
Mohd Abas Shah ◽  
Neelam Kumari ◽  
Anuj Bhatnagar ◽  
...  
Keyword(s):  
Potato Virus ◽  
Brevicoryne Brassicae ◽  
Cabbage Aphid ◽  
Potato Crops
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