Iris yellow spot virus: A New Onion Disease in Spain

Plant Disease
C Córdoba-SellésC Jordá-Gutiérrez

Abstract

So far, only three viral diseases have been identified in onion crops grown in Spain. These are Tomato spotted wilt virus (TSWV), Onion yellow dwarf virus (OYDV), and Leek yellow stripe virus (LYSV). In September 2003, unusual virus-like symptoms including straw-colored, dry, tan, diamond-shaped lesions on the leaves and stalks, sometimes with necrotic lesions, curled leaves, and bulbs of reduced size, were observed on several onion plants (Allium cepa L.) in commercial fields in Albacete, Spain. Severely affected plants eventually died. To verify the identity of the disease found in the Spanish onions, double-antibody sandwich enzyme-linked immunosorbent assay (DAS-ELISA) was performed on leaf extracts of symptomatic onions using specific polyclonal antibodies against OYDV, LYSV, Cucumber mosaic virus (CMV) (Biorad Phyto-Diagnostics, Marnes-La Coquette, France), Iris yellow spot virus (IYSV), and TSWV (Loewe Biochemica, Sauerlach, Germany). All samples of infected onion tissue were positive for IYSV and negative for the other viruses tested. To confirm the ELISA results, viral RNA was extracted from five of the ELISA-positive onion samples, a healthy onion plant, and a positive control for IYSV (DSMZ, Braunschweig. Germany). T...Continue Reading

Citations

Feb 8, 2019·Arteriosclerosis, Thrombosis, and Vascular Biology·Christopher PapandreouMònica Bulló
Oct 1, 2009·Plant Disease·Aleksandra BulajićBranka Krstić
Dec 1, 2006·Plant Disease·David H GentHoward F Schwartz

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.