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Occurrence of Sweet potato feathery mottle virus and Sweet potato leaf curl Georgia virus on Sweet Potato in India.
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Viruses are a major biotic constraint on sweet potato (Ipomoea batatas (L.) Lam) production worldwide. In 2005, 10 to 60% viral disease incidence was observed in sweet potato fields. Symptoms include ring and chlorotic spots, puckering, feathering, vein clearing, and leaf curl with chlorotic specks
Agroinfection of sweet potato by vacuum infiltration of an infectious sweepovirus.
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Sweepovirus is an important monopartite begomovirus that infects plants of the genus Ipomoea worldwide. Development of artificial infection methods for sweepovirus using agroinoculation is a highly efficient means of studying infectivity in sweet potato. Unlike other begomoviruses, it has proven
Sweet potato feathery mottle potyvirus (C1 isolate) virion and RNA purification.
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A procedure for the purification of a Peruvian isolate (C1) of sweet potato feathery mottle potyvirus (SPFMV) and infective RNA has been developed. The use of Hepes [N-(2-hydroxyethyl)piperazine-N'-2-ethanesulfonic acid] buffer containing urea and sodium EDTA as a base for tissue extraction and
Characterization of Cherry leafroll virus in Sweet Cherry in Washington State.
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A visual survey in 1998 of a commercial block of 594 sweet cherry trees (Prunus avium) in Yakima County, WA, revealed three trees of cv. Bing growing on Mazzard rootstock that exhibited a progressive decline characterized by a premature drop of yellowed leaves prior to fruit maturity and small, late
Promoter analysis of the sweet potato ADP-glucose pyrophosphorylase gene IbAGP1 in Nicotiana tabacum.
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CONCLUSIONS
The IbAGP1 gene of sweet potato ( Ipomoea batatas ) encodes the sucrose-inducible small subunit of ADP-glucose pyrophosphorylase. Through expression analysis of 5'-truncations and synthetic forms of the IbAGP1 promoter in transgenic tobacco, we show that SURE-Like elements and W-box
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.
Elucidation of the Amygdalin Pathway Reveals the Metabolic Basis of Bitter and Sweet Almonds (Prunus dulcis).
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Almond (Prunus dulcis) is the principal Prunus species in which the consumed and thus commercially important part of the fruit is the kernel. As a result of continued selection, the vast majority of almonds have a nonbitter kernel. However, in the field, there are trees carrying bitter kernels,
First Report of Tomato spotted wilt virus in Sweet Pepper in Taiwan.
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A new disorder on pepper showing symptoms of chlorosis and chlorotic spots on leaves was observed in sweet pepper (Capsicum annuum cv. Andalus) fields in Ren-Ai Township, Nantou County in July, 2009. The disorder occurred in more than 30% of the pepper plants, with a height of approximately 40 cm
A novel sweet potato potyvirus open reading frame (ORF) is expressed via polymerase slippage and suppresses RNA silencing.
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The single-stranded, positive-sense RNA genome of viruses in the genus Potyvirus encodes a large polyprotein that is cleaved to yield 10 mature proteins. The first three cleavage products are P1, HCpro and P3. An additional short open reading frame (ORF), called pipo, overlaps the P3 region of the
A R2R3-MYB Gene LfMYB113 is Responsible for Autumn Leaf Coloration in Formosan sweet gum (Liquidambar formosana Hance).
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The regulation of autumn leaf coloration in deciduous trees has long been an enigma. Due to the fact that different coloration phenotypes may be considered when planting, more understanding of the regulation mechanism is needed. In this study, a R2R3-MYB transcription factor gene LfMYB113 was
Comparative studies on tobacco pith and sweet potato root isoperoxidases in relation to injury, indoleacetic Acid, and ethylene effects.
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Sweet potato (Ipomoea batatas) root parenchyma and tobacco (Nicotiana tabacum) stem pith, both known to increase peroxidase activity after excision, differed from each other in their isoperoxidase patterns and in the isoperoxidase responses to injury and exogenous ethylene.In potato root sections,
The Helper Component-Proteinase of Sweet potato feathery mottle virus Facilitates Systemic Spread of Potato virus X in Ipomoea nil.
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ABSTRACT When Ipomoea nil was coinfected with Sweet potato feathery mottle virus (SPFMV), a member of the genus Potyvirus, and Potato virus X (PVX) typical symptoms caused by PVX were observed on those by SPFMV on the first upper true leaves at 14 days postinoculation (dpi). On the other hand, no
Sweepoviruses cause disease in sweet potato and related Ipomoea spp.: fulfilling Koch's postulates for a divergent group in the genus begomovirus.
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Sweet potato (Ipomoea batatas) and related Ipomoea species are frequently infected by monopartite begomoviruses (genus Begomovirus, family Geminiviridae), known as sweepoviruses. Unlike other geminiviruses, the genomes of sweepoviruses have been recalcitrant to rendering infectious clones to date.
Analysis of transitive RNA silencing after grafting in transgenic plants with the coat protein gene of Sweet potato feathery mottle virus.
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We have previously reported the graft transmission of target specificity for RNA silencing using transgenic Nicotiana benthamiana plants expressing the coat protein gene (CP, including the 3' non-translated region) of Sweet potato feathery mottle virus. Transgenic plants carrying the 5' 200 and 400
C4 Protein of Sweet Potato Leaf Curl Virus Regulates Brassinosteroid Signaling Pathway through Interaction with AtBIN2 and Affects Male Fertility in Arabidopsis.
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Sweepoviruses have been identified globally and cause substantial yield losses and cultivar decline in sweet potato. This study aimed to investigate the interaction between sweepovirus and plant host by analyzing the function of the viral protein C4 of Sweet potato leaf curl virus-Jiangsu
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