#VegetableRes
The role of SlSWEET10a in tomato: essential for regulating sucrose metabolism and plant height. Overexpression decreases sugars; silencing increases them.
Details: maxapress.com/article/doi/10.48130/veg...
#TomatoResearch #PlantScience #SucroseTransport

Billion-Dollar Threat: Could a Tomato From the 90s Stop a Devastating Modern Plague? Temperature shapes tomato resistance. New cultivars could help growers worldwide. Scientists from the USDA’s Agricultural Research Service (ARS), working with university collaborators, are helping American...

Billion-Dollar Threat: Could a Tomato From the 90s Stop a Devastating Modern Plague? #Science #Biology #Genetics #TomatoResearch #GeneticEngineering #FoodSecurity

Impact of elevated temperature on immunity-related hormone signaling in tomato plants
Castroverde, C. D. M., Liu, K. et al.
Paper
Details
#PlantBiology #HormoneSignaling #TomatoResearch

Impacts of Increasing Soil Salinity on Genetic Resistance (I-3 Gene)-Based Management of Fusarium Wilt (Fusarium oxysporum f. sp. lycopercisi Race 3) in California Processing Tomatoes | Phytopathology® California is the primary processing tomato (Solanum lycopersicum) producer in the United States. Fusarium oxysporum f. sp. lycopercisi race 3 (Fol3), the cause of Fusarium wilt, is a major driver of yield losses. Fol3 has recently been observed causing disease in resistant cultivars (I-3 R-gene), often reported in association with high soil salinity. This study was undertaken to better understand the role of salinity in compromising resistance-based management of Fol3. Surveys established opportunity for salinity–Fol3–tomato interactions in 44% of commercial fields examined, with harmful soil salt levels up to 3.6 dS/m (P < 0.001), high sodium (P < 0.001), and high sodicity (sodium adsorption ratio > 13; P < 0.001). In controlled field studies of Fol3 in NaCl/CaCl2-treated soil, Fol3-resistant cultivars either only developed wilt under salt or only developed wilt above the industry non-hybrid threshold (2%) under salt across two trial years. The absence of yield differences indicates low to no economic impact of disease enhancement (P > 0.05). NaCl, CaCl2, and Na2SO4 had no effect on Fol3 propagule production in liquid agar versus water agar controls (P > 0.05), although CaCl2 increased propagule loads sevenfold versus ionic controls (polyethylene glycol) (P = 0.036). NaCl/CaCl2 (2:1) reduced propagule loads up to 65% versus no salt (P = 0.029) in soil with pathogen-infested tomato tissue. These results together establish the opportunity for salinity–Fol3–tomato interactions and potential for salt to influence the efficacy of resistant cultivar-based management—this does not appear to be primarily due to salt enhancement of pathogen populations, pointing to a yet-unexplored direct influence of salt on host resistance.

🍅 Elizabeth Hellman, Thomas Turini, and Cassandra Swett released a paper on ways high soil salinity weakens Fusarium resistance in tomatoes, highlighting the urgent need for better soil management.

▶️ apsjournals.apsnet.org/doi/full/10....

#TomatoResearch #SoilHealth #SustainableAg