Article
Plant Sciences
Wandi Liu, Chaohui Yan, Ruimin Li, Guanyu Chen, Xinqi Wang, Yingqiang Wen, Chaohong Zhang, Xiping Wang, Yan Xu, Yuejin Wang
Summary: The discovery of the Chinese wild grape gene VqNSTS3 can be used to breed powdery mildew-resistant grapes. VqNSTS3 expression is regulated by VqWRKY33 and enhances resistance to pathogen invasion through enhanced signal transduction and increased VqNSTS3 expression.
HORTICULTURE RESEARCH
(2023)
Article
Plant Sciences
Wuchen Yin, Xianhang Wang, Hui Liu, Ya Wang, Steve van Nocker, Mingxing Tu, Jinghao Fang, Junqiang Guo, Zhi Li, Xiping Wang
Summary: Transgenic expression of the WRKY transcription factor gene VqWRKY31 from the PM-resistant species Vitis quinquangularis enhanced resistance to powdery mildew in V. vinifera by activating salicylic acid defense signaling and promoting the synthesis of specific disease resistance-related metabolites. These findings have important implications for molecular breeding strategies to produce PM-resistant grapevine germplasm.
HORTICULTURE RESEARCH
(2022)
Article
Plant Sciences
Chaohui Yan, Na Yang, Ruimin Li, Xinqi Wang, Yan Xu, Chaohong Zhang, Xiping Wang, Yuejin Wang
Summary: In this study, we found that the expression of VqNSTS4 gene is enhanced grapevine resistance to powdery mildew by regulating VqAL4 transcription factor. Furthermore, overexpression of VqNSTS4 promotes the accumulation of stilbenes and activates salicylic acid (SA) signaling. These findings may contribute to improving disease resistance in perennial fruit trees.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Plant Sciences
Sri Sunarti, Christos Kissoudis, Yannick Van Der Hoek, Hanneke Van Der Schoot, Richard G. F. Visser, C. Gerard Van Der Linden, Clemens Van De Wiel, Yuling Bai
Summary: Under field conditions, plants often face multiple stresses and need to adapt accordingly. This study investigated the interaction between drought stress and powdery mildew (PM) infection in tomatoes. The results showed that drought stress reduced fungal infection in susceptible genotypes and had varying effects on resistant genotypes. At the molecular level, genes involved in ABA, SA, and ethylene pathways were highly induced under combined stress.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Z. Ogneva, O. A. Aleynova, A. R. Suprun, Y. A. Karetin, A. S. Dubrovina, K. Kiselev
Summary: This study demonstrated that overexpression of VaSTS1 and VaSTS7 genes significantly increased plant tolerance to UV-B and UV-C in A. thaliana plants, while not affecting tolerance to other abiotic stresses. Overexpression of VaSTS1 gene led to the highest levels of trans-piceid and trans-resveratrol in transgenic plants.
BIOLOGIA PLANTARUM
(2021)
Article
Plant Sciences
Amanda G. McRae, Jyoti Taneja, Kathleen Yee, Xinyi Shi, Sajeet Haridas, Kurt LaButti, Vasanth Singan, Igor V. Grigoriev, Mary C. Wildermuth
Summary: Spray-induced gene silencing (SIGS) is a promising tool for crop pest protection by utilizing exogenously applied double-stranded RNA to reduce pest target gene expression. This study optimized SIGS methods for powdery mildew fungi and identified important gene targets and processes for powdery mildew control. The efficacy of SIGS on powdery mildew makes it an exciting prospect for commercial powdery mildew control.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Plant Sciences
Rute Amaro, Ines Diniz, Helena Santos, Diana Pimentel, Cecilia Rego, Axel Mithoefer, Ana Margarida Fortes
Summary: This study compared the hormonal profiles in tolerant and susceptible grape varieties upon infection with Erysiphe necator. The results showed that tolerant varieties had a specific hormonal combination that allowed for a faster and more efficient response against powdery mildew. The balance of different phytohormones plays a crucial role in determining tolerance or susceptibility.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Agronomy
Xenia Palfi, Miklos Lovas, Zsolt Zsofi, Janos Katai, Zoltan Karacsony, Kalman Z. Vaczy
Summary: The study showed that paraffin oil does not have fungicidal activity against powdery mildew, but it induces significant stress-related changes in grapevine physiology, such as elevated H2O2 production and accumulation of the phytohormone salicylic acid.
PEST MANAGEMENT SCIENCE
(2021)
Article
Plant Sciences
Xinshuang Ge, Birgit Hetzer, Christine Tisch, Andreas Kortekamp, Peter Nick
Summary: Wild grapevine has genetic variation in wax formation on leaf surface, which correlates with resistance to E. necator infection. It is suggested as a new source for breeding resistance to powdery mildew.
Article
Biochemistry & Molecular Biology
Olga A. Aleynova, Konstantin V. Kiselev, Andrey R. Suprun, Alexey A. Ananev, Alexandra S. Dubrovina
Summary: CMLs are important plant calcium sensor proteins that sense and decode changes in intracellular calcium concentration. This study found that VaCML92 plays a positive regulatory role in the rapid response to cold stress and stress resistance in Vitis amurensis, as well as increased stilbene production.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Agronomy
Jaroslava Fedorina, Nadezhda Tikhonova, Yulia Ukhatova, Roman Ivanov, Elena Khlestkina
Summary: Grapevine, a widely cultivated fruit crop, is susceptible to various pathogens, leading to decreased yield and quality, requiring heavy fungicide use. Recent technologies, such as CRISPR/Cas9 targeted mutagenesis, offer potential solutions, but challenges remain in developing pathogen-resistant cultivars.
Article
Agronomy
Angela Berrie, Tom Passey, Xiangming Xu
Summary: Research has shown that integrating biopesticides and biostimulants with a decision-based management programme in strawberry production can significantly reduce fungicide use, save costs, and have no negative impacts on yield, fruit quality, or disease control.
Article
Biotechnology & Applied Microbiology
Kai-Cheng Cui, Min Liu, Gui-Hua Ke, Xing-Yuan Zhang, Bo Mu, Min Zhou, Yang Hu, Ying-Qiang Wen
Summary: A grapevine gene CSN5 was identified as playing a key role in response to powdery mildew infection. Transient silencing of VvCSN5 in grapevine leaves enhanced resistance to powdery mildew, and the promoters of CSN5 in susceptible and resistant grapevines showed structural and activity differences.
PLANT CELL TISSUE AND ORGAN CULTURE
(2021)
Article
Agronomy
Agnes Calonnec, Jerome Jolivet, Marie-Louisa Ramaroson, Marie-Cecile Dufour, Marie-France Corio-Costet
Summary: Three grapevine varieties were compared for their susceptibility versus resistance to powdery mildew, with 'Artaban' showing complete resistance and 'Prior' similar to 'Cabernet Sauvignon'. After inoculation, defense genes were overexpressed in the older leaves as potential components of ontogenic resistance.
Article
Plant Sciences
David M. M. Gadoury, Surya Sapkota, Lance Cadle-Davidson, Anna Underhill, Tyler McCann, Kaitlin M. M. Gold, Nikita Gambhir, David B. B. Combs
Summary: Nighttime applications of germicidal ultraviolet effectively suppressed three diseases of grapevine, including powdery mildew, downy mildew, and sour rot. UV-C light with a peak wavelength of 254 nm and a full width at half maximum (FWHM) of 5 nm strongly inhibited the germination of conidia of Erysiphe necator. Exposure to UV-C at a dose of 100 J/m(2) during darkness reduced infection and sporulation of Plasmopara viticola by over 70%.