Results 11 to 20 of about 1,238 (139)

The Roles of Plant MicroRNAs in Defence Against Pathogens. [PDF]

Mol Plant Pathol
miRNAs modulate plant immunity against various pathogens, including fungi, bacteria, viruses, nematodes and oomycetes, by targeting pathogen effectors and modulating hormonal signalling. ABSTRACT MicroRNAs (miRNAs) are a class of noncoding RNAs that play important roles in regulating gene expression.
Mahamadou AM, Abdoulaye AH, Chen Y, Zheng L, Masangano M, Bruno AK, Chen Y.   +6 more
europepmc   +2 more sources

Weather Conditions and the Risk of Tomato Spotted Wilt Virus (TSWV) in Tomato Producing Areas in Southern Ghana. [PDF]

Plant Environ Interact
ABSTRACT Tomato farmers in southern Ghana incur losses due to the infection of crops by the tomato spotted wilt virus (Orthotospovirus tomatomaculae). The occurrence of the virus varies among individual tomato crops, influenced by the vector population and changing weather patterns. This study investigates the effect of early spring weather conditions (
Sarku R, Adjaottor MA, Lossou E.
europepmc   +2 more sources

Tomato chlorotic spot virus in hydroponically-grown lettuce in São Paulo State, Brazil [PDF]

Fitopatologia Brasileira, 2004
In the regions of Campinas and Sumaré, São Paulo, Brazil, hidroponically grown crops of Lettuce (Lactuca sativa) cv. Verônica, which showed virus-like symptoms were examined by electron microscope, biological, serological and molecular tests. Pleomorphic, enveloped particles (80-100 nm in diameter) were always detected in these samples.
Colariccio, Addolorata, Eiras, Marcelo, Chaves, Alexandre L. R., Harakava, Ricardo, Chagas, César M.   +4 more
openaire   +6 more sources

First report of Tomato chlorotic spot virus on Mirabilis jalapa [PDF]

Australasian Plant Disease Notes, 2016
Mosaic symptoms in Mirabilis jalapa plants from a public garden in the city of Sao Paulo, Brazil, were associated with the presence of Tomato chlorotic spot virus (TCSV-Mir-BR07). TCSV-Mir-BR07 was mechanically transmitted to healthy M. jalapa plants. Phylogenetic analysis revealed a monophyletic group formed by South American TCSV isolates separate to
L. M. L. Duarte, A. L. R. Chaves, E. W. Kitajima, L. K. Rodrigues, R. Harakava, M. A. V. Alexandre   +5 more
openaire   +1 more source

Alta incidência de Tomato chlorotic spot virus em jiló no estado de São Paulo [PDF]

Fitopatologia Brasileira, 2002
ABSTRACTHigh incidence of Tomato chlorotic spot virus in Solanum gilo in the State of Sao Paulo, Brazil Biological, serological and electron microscopy assaysconfirmed the presence of Tomato chlorotic spot virus (TCSV)infecting Solanum gilo in commercial plantations in the State ofSao Paulo.
RABELO, LUIZ C., PEDRAZZOLI, DANILO S., NOVAES, QUELMO S., NAGATA, TATSUYA, REZENDE, JORGE A.M., KITAJIMA, ELLIOT W.   +5 more
openaire   +5 more sources

Implementation of Drone System in Survey for Tomato Chlorotic Spot Virus

Journal of Extension, 2020
As a cutting-edge technology, drone systems have shown great potential in agriculture. This article elucidates the implementation of a drone with a multispectral sensing system in a field survey for tomato chlorotic spot virus in south Florida. The findings demonstrate that drone technology can provide growers with precise and timely information about ...
Wang, Qingren, Liu, Qingchun, Zhang, Shouan   +2 more
openaire   +2 more sources

First Report of Tomato chlorotic spot virus Infecting Spilanthes oleracea in Brazil [PDF]

Plant Disease, 2008
Spilanthes oleracea L., popularly known as toothache plant, belongs to the family Asteraceae and is a South American native plant. Fresh leaves can be eaten for their medicinal properties or used by the cosmetics industry for their spilol contents. Plants showing leaf deformation that were collected in a field in São Paulo State, Brazil in March 2005 ...
R, Krause-Sakate, D N, Nozaki, R A, Rosa, G S, Suzuki, M A, Pavan   +4 more
openaire   +2 more sources

Broad-spectrum transgenic resistance against distinct tospovirus species at the genus level. [PDF]

PLoS ONE, 2014
Thrips-borne tospoviruses cause severe damage to crops worldwide. In this investigation, tobacco lines transgenic for individual WLm constructs containing the conserved motifs of the L RNA-encoded RNA-dependent RNA polymerase (L) gene of Watermelon ...
Jui-Chu Peng, Tsung-Chi Chen, Joseph A J Raja, Ching-Fu Yang, Wan-Chu Chien, Chen-Hsuan Lin, Fang-Lin Liu, Hui-Wen Wu, Shyi-Dong Yeh   +8 more
doaj   +1 more source

Commodity risk assessment of <i>Petunia</i> spp. and <i>Calibrachoa</i> spp. unrooted cuttings from Uganda. [PDF]

EFSA J
Abstract The European Commission requested the EFSA Panel on Plant Health to evaluate the likelihood of pest freedom at entry in the EU, including both regulated and non‐regulated pests, potentially associated with unrooted cuttings of the genera Petunia and Calibrachoa produced under physical isolation in Uganda.
EFSA Panel on Plant Health (PLH), Civera AV, Baptista P, Berlin A, Chatzivassiliou E, Cubero J, Cunniffe N, de la Peña E, Desneux N, Di Serio F, Filipiak A, Gonthier P, Hasiów-Jaroszewska B, Jactel H, Landa BB, Maistrello L, Makowski D, Milonas P, Papadopoulos NT, Susi H, van der Gaag DJ, Lacomme C, Debode J, Navas-Cortes JA, Akrivou A, Kritikos C, Kormpi M, Papachristos D, Reppa C, Antonatos S, Beris D, Schulz OM, Lombardo MF, Gardi C, Potting R.   +34 more
europepmc   +2 more sources

First Report of Tomato chlorotic spot virus Infecting Tomatoes in Ohio

Plant Disease, 2015
Virus-like symptoms including deformation, discoloration, and necrotic ringspots on green and red fruits of tomato (Solanum lycopersicum L. cv. Big Dena) were observed in a 400 m2 commercial high tunnel in Wayne Co., Ohio, in July and August 2013. No symptoms were observed on leaves. Incidence of symptomatic fruits was approximately 15%.
F, Baysal-Gurel, R, Li, K-S, Ling, S A, Miller   +3 more
openaire   +2 more sources