Search Results - "Valkonen, Jari P. T."

Phenotyping viral infection in sweetpotato using a high-throughput chlorophyll fluorescence and thermal imaging platform by Wang, Linping, Poque, Sylvain, Valkonen, Jari P T

“…Virus diseases caused by co-infection with (SPFMV) and (SPCSV) are a severe problem in the production of sweetpotato ( L.). Traditional molecular virus…”
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Seedborne Pathogenic Fungi in Common Bean (Phaseolus vulgaris cv. INTA Rojo) in Nicaragua by Marcenaro, Delfia, Valkonen, Jari P T

“…Common bean (Phaseolus vulgaris L.) is an important legume with high nutritional value. In Nicaragua, certified healthy seeds of local bean varieties are not…”
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Mixed Infections of Four Viruses, the Incidence and Phylogenetic Relationships of Sweet Potato Chlorotic Fleck Virus (Betaflexiviridae) Isolates in Wild Species and Sweetpotatoes in Uganda and Evidence of Distinct Isolates in East Africa by Tugume, Arthur K, Mukasa, Settumba B, Valkonen, Jari P T

“…Viruses infecting wild flora may have a significant negative impact on nearby crops, and vice-versa. Only limited information is available on wild species able…”
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Helper Component Proteinase of the Genus Potyvirus Is an Interaction Partner of Translation Initiation Factors eIF(iso)4E and eIF4E and Contains a 4E Binding Motif by Ala-Poikela, Marjo, Goytia, Elisa, Haikonen, Tuuli, Rajamäki, Minna-Liisa, Valkonen, Jari P. T.

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Silencing suppressor protein VPg of a potyvirus interacts with the plant silencing-related protein SGS3 by Rajamäki, Minna-Liisa, Streng, Janne, Valkonen, Jari P T

“…Viral genome-linked protein (VPg) of potyviruses is involved in multiple steps of the potyvirus infection cycle, including viral multiplication and movement in…”
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Small-RNA analysis of pre-basic mother plants and conserved accessions of plant genetic resources for the presence of viruses by Rajamäki, Minna-Liisa, Lemmetty, Anne, Laamanen, Jaana, Roininen, Elina, Vishwakarma, Archana, Streng, Janne, Latvala, Satu, Valkonen, Jari P T

“…Pathogen-free stocks of vegetatively propagated plants are crucial in certified plant production. They require regular monitoring of the plant germplasm for…”
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Genetic Determinants of Potato virus Y Required to Overcome or Trigger Hypersensitive Resistance to PVY Strain Group O Controlled by the Gene Ny in Potato by TIAN, Yan-Ping, VALKONEN, Jari P. T

“…Potato virus Y (PVY) (genus Potyvirus) is the most economically damaging and widely distributed virus in potato. Spread of PVY in the field is controlled by…”
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Cassava Brown Streak Virus (Potyviridae) Encodes a Putative Maf/HAM1 Pyrophosphatase Implicated in Reduction of Mutations and a P1 Proteinase That Suppresses RNA Silencing but Contains No HC-Pro by Mbanzibwa, Deusdedith R, Tian, Yanping, Mukasa, Settumba B, Valkonen, Jari P T

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Pathogenic seedborne viruses are rare but Phaseolus vulgaris endornaviruses are common in bean varieties grown in Nicaragua and Tanzania by Nordenstedt, Noora, Marcenaro, Delfia, Chilagane, Daudi, Mwaipopo, Beatrice, Rajamäki, Minna-Liisa, Nchimbi-Msolla, Susan, Njau, Paul J R, Mbanzibwa, Deusdedith R, Valkonen, Jari P T

“…Common bean (Phaseolus vulgaris) is an annual grain legume that was domesticated in Mesoamerica (Central America) and the Andes. It is currently grown widely…”
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Functional diversification of duplicated chalcone synthase genes in anthocyanin biosynthesis of Gerbera hybrida by Deng, Xianbao, Bashandy, Hany, Ainasoja, Miia, Kontturi, Juha, Pietiäinen, Milla, Laitinen, Roosa A. E., Albert, Victor A., Valkonen, Jari P. T., Elomaa, Paula, Teeri, Teemu H.

“…Chalcone synthase (CHS) is the key enzyme in the first committed step of the flavonoid biosynthetic pathway and catalyzes the stepwise condensation of…”
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Viral RNase3 Co-Localizes and Interacts with the Antiviral Defense Protein SGS3 in Plant Cells by Weinheimer, Isabel, Haikonen, Tuuli, Ala-Poikela, Marjo, Moser, Mirko, Streng, Janne, Rajamäki, Minna-Liisa, Valkonen, Jari P T

“…Sweet potato chlorotic stunt virus (SPCSV; family Closteroviridae) encodes a Class 1 RNase III endoribonuclease (RNase3) that suppresses post-transcriptional…”
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Nuclear proteome of virus-infected and healthy potato leaves by Rajamäki, Minna-Liisa, Sikorskaite-Gudziuniene, Sidona, Sarmah, Nandita, Varjosalo, Markku, Valkonen, Jari P T

“…Infection of plants by viruses interferes with expression and subcellular localization of plant proteins. Potyviruses comprise the largest and most…”
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Cryotherapy of shoot tips: novel pathogen eradication method by Wang, Qiaochun, Valkonen, Jari P.T.

“…Cryotherapy is a novel application of plant cryopreservation techniques that allows pathogen eradication at a high frequency. It eliminates plant pathogens…”
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A novel sweet potato potyvirus open reading frame (ORF) is expressed via polymerase slippage and suppresses RNA silencing by Untiveros, Milton, Olspert, Allan, Artola, Katrin, Firth, Andrew E., Kreuze, Jan F., Valkonen, Jari P. T.

“…Summary The single‐stranded, positive‐sense RNA genome of viruses in the genus Potyvirus encodes a large polyprotein that is cleaved to yield 10 mature…”
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Genetically distinct strains of Cassava brown streak virus in the Lake Victoria basin and the Indian Ocean coastal area of East Africa by Mbanzibwa, D. R., Tian, Y. P., Tugume, A. K., Mukasa, S. B., Tairo, F., Kyamanywa, S., Kullaya, A., Valkonen, Jari P. T.

“…Six isolates of Cassava brown streak virus (CBSV, genus Ipomovirus ; Potyviridae ) from the Lake Victoria basin in Uganda and Tanzania were characterized…”
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Small-RNA deep sequencing reveals Arctium tomentosum as a natural host of Alstroemeria virus X and a new putative Emaravirus by Bi, Yaqi, Tugume, Arthur K, Valkonen, Jari P T

“…Arctium species (Asteraceae) are distributed worldwide and are used as food and rich sources of secondary metabolites for the pharmaceutical industry, e.g.,…”
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Recombination of strain O segments to HCpro‐encoding sequence of strain N of Potato virus Y modulates necrosis induced in tobacco and in potatoes carrying resistance genes Ny or Nc by Tian, Yan‐Ping, Valkonen, Jari P. T

“…Hypersensitive resistance (HR) to strains O and C of Potato virus Y (PVY, genus Potyvirus) is conferred by potato genes Nyₜbᵣ and Ncₜbᵣ, respectively; however,…”
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Combined thermotherapy and cryotherapy for efficient virus eradication: relation of virus distribution, subcellular changes, cell survival and viral RNA degradation in shoot tips by WANG, QIAOCHUN, CUELLAR, WILMER J, RAJAMÄKI, MINNA-LIISA, HIRATA, YUKIMASA, VALKONEN, JARI P.T

“…Accumulation of viruses in vegetatively propagated plants causes heavy yield losses. Therefore, supply of virus-free planting materials is pivotal to…”
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Viral Class 1 RNase III Involved in Suppression of RNA Silencing by KREUZE, Jan F, SAVENKOV, Eugene I, CUELLAR, Wilmer, XIANGDONG LI, VALKONEN, Jari P. T

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Infection cycle of Artichoke Italian latent virus in tobacco plants: meristem invasion and recovery from disease symptoms by Santovito, Elisa, Mascia, Tiziana, Siddiqui, Shahid A, Minutillo, Serena Anna, Valkonen, Jari P T, Gallitelli, Donato

“…Nepoviral infections induce recovery in fully expanded leaves but persist in shoot apical meristem (SAM) by a largely unknown mechanism. The dynamics of…”
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