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Use of Spring beauty latent virus to identify compatible interactions between bromovirus components required for virus infection.
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Spring beauty latent virus (SBLV) is a member of the genus Bromovirus, and is closely related to Brome mosaic virus (BMV) and Cowpea chlorotic mottle virus (CCMV). Compatible interactions between viral components are required for successful infection of plants by BMV and CCMV. To further our
The role of mesophyll conductance during water stress and recovery in tobacco (Nicotiana sylvestris): acclimation or limitation?
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While the responses of photosynthesis to water stress have been widely studied, acclimation to sustained water stress and recovery after re-watering is poorly understood. In particular, the factors limiting photosynthesis under these conditions, and their possible interactions with other
First Report of Natural Infection of Greenhouse-Grown Tomato and Weed Species by Pelargonium zonate spot virus in Spain.
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Tomato (Lycopersicon esculentum Mill.) plants showing severe chlorotic and necrotic ringspots, line patterns on leaves, and concentric chlorotic ringspots on stems and fruits were observed in plastic greenhouse-grown tomato crops cv. Royesta during the spring of 1996 in Zaragoza province, Northeast
Lfo-miR164b and LfNAC1 as autumn leaf senescence regulators in Formosan sweet gum (Liquidambar formosana Hance).
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In this study, a microRNA microarray was used to investigate the microRNA profiles from young green leaves, and senescent red leaves and yellow leaves of Formosan sweet gum (Liquidambar formosana Hance). The conserved microRNA miR164 was highly expressed in green leaves compared to senescent leaves.
Crystallization and preliminary X-ray crystallographic analysis of S-allelic glycoprotein S(F11)-RNase from Nicotiana alata.
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Nicotiana alata S(F11)-RNase is an S-glycoprotein associated with gametophytic self-incompatibility. Crystals of S(F11)-RNase have been grown at room temperature using polyethylene glycol as a precipitant. A crystal diffracted to better than 1.4 A resolution at 100 K at the SPring-8
Assessment of Atmospheric ozone levels in Israel through foliar injury to Bel-W3 tobacco plants.
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Nicotiana tabacum L. Bel-W3, which is highly sensitive to ozone, was grown in two glass chambers and exposed to the ambient air at the periphery of Tel-Aviv, during winter, spring, summer and autumn 1978. During the exposure time, atmospheric ozone was continuously measured by a chemiluminescent
Interacting virus abundance and transmission intensity underlie tomato spotted wilt virus incidence: an example weather-based model for cultivated tobacco.
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Through a modeling approach, we investigated weather factors that affect the summer incidence of Tomato spotted wilt virus (TSWV), a virus vectored exclusively by thrips, in cultivated tobacco. Aspects of thrips and plant biology that affect disease spread were treated as functions of weather,
Occurrence of Radish mosaic virus on Cauliflower and Turnip Crops in Iran.
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During the spring and summer of 2003, symptoms of mosaic, mottle, and crinkle were observed in cauliflower (Brassica oleracea) and turnip (Brassica rapa) fields in the Qazvin and Esfahan provinces of Iran, respectively. Leaf extracts of these plants, made infective by mechanical inoculation, caused
Synthesis of infectious in vitro transcripts from Cassia yellow blotch bromovirus cDNA clones and a reassortment analysis with other bromoviruses in protoplasts.
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Cassia yellow blotch virus (CYBV), genus Bromovirus, was isolated from the Australian native legume, Cassia pleurocarpa, in western Queensland, and its host range was found to be distinct from other bromoviruses. In this study, CYBV was shown to infect systemically and efficiently a model plant
Biosynthesis of the leucine derived α-, β- and γ-hydroxynitrile glucosides in barley (Hordeum vulgare L.).
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Barley (Hordeum vulgare L.) produces five leucine-derived hydroxynitrile glucosides (HNGs), of which only epiheterodendrin is a cyanogenic glucoside. The four non-cyanogenic HNGs are the β-HNG epidermin and the γ-HNGs osmaronin, dihydroosmaronin and sutherlandin. By analyzing 247 spring barley lines
A Description of the Possible Etiology of the Cilantro Yellow Blotch Disease.
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A virus-like disease characterized by foliar yellow blotch symptoms and resembling those described for cilantro yellow blotch disease in California was observed in a 4.05-ha cilantro (Coriandrum sativum) cv. Santo field in Hidalgo County, Texas during spring 2019. Disease incidence at harvest
First Report of Fire Blight Caused by Erwinia amylovora on Meadowsweet (Spirea prunifolia) in Turkey.
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Fire blight, caused by Erwinia amylovora (Burr.) Winslow et al., affects plants in the Rosaceae family, which includes trees and shrubs in orchards, nurseries, and landscape plantations. During the springs and summers of 2008 and 2010, dying branches, necrotic leaves attached to shoots, and blighted
First Report of Erysiphe cichoracearum Infecting Hedera canariensis var. azorica in Italy.
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A powdery mildew disease of variegated ivy (Hedera canariensis L. var. azorica) was observed on the Tyrrhenian coast in Tuscany (Italy) in spring 1998. Symptoms began as small, nearly circular reddish spots that later enlarged and coalesced. The hyaline mycelium produced abundant, ellipsoid conidia
Characterization of three related low-temperature-regulated cDNAs from winter Brassica napus.
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A cDNA clone, pBN115, encoding a low-temperature-regulated transcript in winter Brassica napus has been isolated. Northern blot analyses show that levels of transcripts hybridizing to pBN115 increase within 24 h of exposure of B. napus to low temperature, peak at 3 d, and then remain at an elevated
First Report of Parietaria mottle virus on Tomato in Spain.
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During spring 2001, plants of different tomato (Lycopersicon esculentum) cultivars grown in several commercial fields in the eastern Catalonia Region of Spain had fruit with brown patches and young leaves with rings and a bright necrotic mosaic that progressed to stem necrosis of the apex, which
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