seed transmitted viral

Listing 1 - 10 from 14 for seed transmitted viral

Plant Pathology Glossary
... kingdom and are released upon seed germination, creating an antimicrobial environment around the seed while it germinates. Dieback ... light and dark green mosaic, symptomatic of many viral diseases. View Image. Mycelium (pl. Mycelia) a mass ... (phytoalexins are antimicrobial). Phytoplasmas phloem-dwelling prokaryotic microorganisms, transmitted by phloem-feeding insects. Powdery Mildew White powdery ' ...
bugs.bio.usyd.edu.au

Growing Potatoes in the Florida Home Garden
... it is called a "seed" potato. Only certified seed potatoes should be planted in the home garden. Certification insures that the seed tubers are free of disease. Certified seed can be obtained from a ... the soil and feed on plant roots. Figure 14. Red potatoes with corky ringspot viral lesions. Virus is transmitted by the stubby-root nematode. Many fungal diseases are spread by water. Avoid ...
edis.ifas.ufl.edu

Tomato Leaf Roll
... peppers and potatoes, is most commonly caused by herbicide damage, viral disease or cultural (non-parasitic) conditions. Physiological or Nonparasitic ... . Fruit may become abnormally pointed or catfaced with limited seed formation. Ripe fruit may be firmer and harder to remove ... referred to as tomato leaf curl), is a viral disease that is usually transmitted by sucking insects. This disease tends to ...
gardenline.usask.ca

Lily Pests and Diseases
... Tulip Breaking Virus hence its name. This virus can be easily transmitted from these tulips to your lilies, so for this reason ... cause streaking in leaves and flowers. The continuing hybridization of viral resistant cultivars will also greatly help to control future problems ... same time. B.cinerea attacks the leaves, open flowers and seed pods in cool summer weather and late fall. The warm, ...
mikesbackyardgarden.org

Plant Virus Diseases
... identify virus diseases. An advanced array of symptoms can be recognized today as expressions of viral diseases in plants. Some of these would include abnormal leaf color, abnormal vein patterns ... genetic structure of the plants. Other ways in which viruses can be transmitted are through vegetative propagation, grafting and budding, seed transmission and mechanical spread by insects and man. At the ...
plantpathology.tamu.edu

On-Line Glossary: T
... one molecule of linear RNA, easily sap-transmitted and transmitted in nature by contact and (in the case of some viruses in this group) in seed. (5) tolerance. 1. The ability of ... eukaryotic cells. (16) transfection. The successful virus-infection of cells following their inoculation with viral nucleic acid. (10) transformant. A cell or organism that has undergone genetic transformation. (16) ...
ppathw3.cals.cornell.edu

Biologie Cellulaire : Equipes
... biology genetics & plant breeding plant nitrogen nutrition seed biology cell imaging biochemistry resource centre Epigenetics ... networks: transgene TGS and PTGS, attenuation of viral infection, post-transcriptional regulation of endogenous genes by ... (1997) Systemic Acquired Silencing: Transgene-specific post-transcriptional silencing is transmitted by grafting from silenced stocks to non-silenced ...
www-ijpb.versailles.inra.fr

The BSPP - Publications - BSPP News 41 Spring 2002
... plant material for transplanting that might carry soil (e.g. seed potatoes) must be from certified rhizomania-free areas, and ... ? Rhizomania, caused by Beet necrotic yellow vein virus and transmitted by the plasmodiophorid root parasite, Polymyxa betae, exhibits several unusual ... In 1989, he had the opportunity to make research on viral diseases his full-time occupation by moving to the Sainsbury ...
www.bspp.org.uk

Testing Methods for Seed-Transmitted Viruses:
... seed-transmitted viral diseases and discusses outlines for the organization and interpretation of seed health assays. The techniques reviewed are also applicable to non-seed-transmitted viral agents. Main Contents PART I Introduction Seed ...
www.cabi-publishing.org

Department of Plant Pathology Plant Disease Fact Sheets
... The strain found in Pennsylvania, PPV-D, is not readily seed transmitted and seems to be more slowly spread by aphids ... plant, and test probe that plant. Rapid transmission of nonpersistently transmitted potyviruses, including PPV, occurs during aphid test probes and ... or even more sensitive tests involving nucleic acid probes for specific viral RNA sequences must be employed. Tissue from trees to ...
www.ppath.cas.psu.edu