scholarly journals Overwintering Physiology and Cold Tolerance of the Sunn Pest, Eurygaster integriceps, an Emphasis on the Role of Cryoprotectants

2020 ◽  
Vol 11 ◽  
Author(s):  
Hamzeh Hasanvand ◽  
Hamzeh Izadi ◽  
Mozhgan Mohammadzadeh
Keyword(s):  
Cold Tolerance ◽  
Sunn Pest ◽  
Eurygaster Integriceps

scholarly journals Role of Symbiotic Bacteria in the Growth and Development of the Sunn Pest,Eurygaster integriceps

2013 ◽  
Vol 13 (99) ◽  
pp. 1-12 ◽  
Author(s):  
Maryam Kafil ◽  
Ali Reza Bandani ◽  
Martin Kaltenpoth ◽  
Seyed Hossein Goldansaz ◽  
Seyed Mehdi Alavi
Keyword(s):  
Growth And Development ◽  
Symbiotic Bacteria ◽  
Sunn Pest ◽  
Eurygaster Integriceps

GRAS-domain transcription factor PAT1 regulates jasmonic acid biosynthesis in grape cold stress response

2021 ◽  
Author(s):  
Zemin Wang ◽  
Darren Chern Jan Wong ◽  
Yi Wang ◽  
Guangzhao Xu ◽  
Chong Ren ◽  
...  
Keyword(s):  
Stress Response ◽  
Cold Stress ◽  
Cold Tolerance ◽  
Cold Treatment ◽  
Ectopic Expression ◽  
Bimolecular Fluorescence Complementation ◽  
Luciferase Reporter ◽  
Vitis Amurensis ◽  
Mobility Shift

Abstract Cultivated grapevine (Vitis) is a highly valued horticultural crop, and cold stress affects its growth and productivity. Wild Amur grape (Vitis amurensis) PAT1 (Phytochrome A signal transduction 1, VaPAT1) is induced by low temperature, and ectopic expression of VaPAT1 enhances cold tolerance in Arabidopsis (Arabidopsis thaliana). However, little is known about the molecular mechanism of VaPAT1 during the cold stress response in grapevine. Here, we confirmed the overexpression of VaPAT1 in transformed grape calli enhanced cold tolerance. Yeast two-hybrid and bimolecular fluorescence complementation assays highlighted an interaction between VaPAT1 with INDETERMINATE-DOMAIN 3 (VaIDD3). A role of VaIDD3 in cold tolerance was also indicated. Transcriptome analysis revealed VaPAT1 and VaIDD3 overexpression and cold treatment coordinately modulate the expression of stress-related genes including lipoxygenase 3 (LOX3), a gene encoding a key jasmonate biosynthesis enzyme. Co-expression network analysis indicated LOX3 might be a downstream target of VaPAT1. Both electrophoretic mobility shift and dual luciferase reporter assays showed the VaPAT1-IDD3 complex binds to the IDD-box (AGACAAA) in the VaLOX3 promoter to activate its expression. Overexpression of both VaPAT1 and VaIDD3 increased the transcription of VaLOX3 and JA levels in transgenic grape calli. Conversely, VaPAT1-SRDX (dominant repression) and CRISPR/Cas9-mediated mutagenesis of PAT1-ED causing the loss of the C-terminus in grape calli dramatically prohibited the accumulation of VaLOX3 and JA levels during cold treatment. Together, these findings point to a pivotal role of VaPAT1 in the cold stress response in grape by regulating JA biosynthesis.

scholarly journals Field-based screening identifies resistance to Sunn pest (Eurygaster integriceps) feeding at vegetative stage in elite wheat genotypes

2017 ◽  
Vol 68 (2) ◽  
pp. 126 ◽  
Author(s):  
Livinus Emebiri ◽  
Mustapha El Bousshini ◽  
Mui-Keng Tan ◽  
Francis C. Ogbonnaya
Keyword(s):  
Strong Association ◽  
Genetic Resistance ◽  
Pest Resistance ◽  
Snp Markers ◽  
Vegetative Stage ◽  
Sunn Pest ◽  
Wheat Varieties ◽  
Wheat Germplasm ◽  
Eurygaster Integriceps ◽  
A Genome

Sunn pest (Eurygaster integriceps Puton) is currently widely distributed in West and Central Asia and Eastern Europe, but has not been found in Australia, Western Europe or North America. Climate warming is known to promote the expansion of its range of distribution, and it is expected that the insect could spread into new territories. Varieties of wheat (Triticum aestivum) carrying resistance remain an important component of managing the biosecurity risk of any potential incursion. Previous studies have identified sources of Sunn pest resistance in wheat, but there is little information on the genes that confer the resistance. This research used field-based, artificial infestation cages to evaluate 204 elite wheat varieties for Sunn pest resistance, at Terbol, Lebanon. A significant (P < 0.001) difference in resistance was observed among the wheat germplasm, with 19 varieties rated as resistant to moderately resistant and 17 as highly susceptible. Three of the elite varieties showed very little damage, a status similar to that of the resistant check, ICBW-209273. In parallel, the research carried out a genome-wide scan with single-nucleotide polymorphism (SNP) markers to identify chromosome regions and putative genes associated with resistance. Association mapping identified SNP markers with significant associations on chromosomes 2D, 4B and 5B. When these markers were projected onto the wheat population sequencing-based (POPSEQ) reference map, they tended to map close to the location of wheat height-reducing genes. The phenotypic variation explained by the identified markers ranged from 7% to 11%, and collectively, they explained 23.9% of the variation or 45% of the generalised heritability. Marker-trait association was confirmed in two independent, doubled-haploid wheat populations, derived from crosses involving wheat landraces from Afghanistan, where Sunn pest is recognised as an endemic problem. In the two wheat populations, the analyses validated the strong association between wsnp_BF483640B_Ta_2_2 and resistance to Sunn pest damage at the vegetative stage. This study demonstrates existence of genetic resistance to Sunn pest feeding at the vegetative stage in elite wheat germplasm. The study also identified and validated SNP markers that could be useful tools for transfer of resistance into new wheat cultivars.

Effect of egg parasitoid density on the population suppression of Sunn Pest, Eurygaster integriceps (Hemiptera: Scutelleridae), and its resulting impact on bread wheat grain quality

2005 ◽  
Vol 79 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Abdul Nasser Trissi ◽  
Mustapha El Bouhssini ◽  
Joumaa Ibrahem ◽  
Mohammed Abdulhai ◽  
Bruce L. Parker ◽  
...  
Keyword(s):  
Bread Wheat ◽  
Grain Quality ◽  
Egg Parasitoid ◽  
Wheat Grain ◽  
Sunn Pest ◽  
Eurygaster Integriceps ◽  
Population Suppression

Beauveria bassiana Characterization and Efficacy vs. Sunn Pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae)

2010 ◽  
Vol 13 (21) ◽  
pp. 1052-1056 ◽  
Author(s):  
M. Abdulhai ◽  
M. El-Bouhssi ◽  
M. Jamal ◽  
A.N. Trissi ◽  
Z. Sayyadi ◽  
...  
Keyword(s):  
Beauveria Bassiana ◽  
Sunn Pest ◽  
Eurygaster Integriceps
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