Characterization of Phytophthora capsici Associated with Roots of Weeds on Florida Vegetable Farms

Plant Disease
Ronald D French-MonarPamela D Roberts

Abstract

Weeds were sampled in commercial vegetable fields in Palm Beach County, FL in August 2001, December 2001, and March 2002 for the presence of Phytophthora capsici. Fields sampled had a recent history of this plant pathogen. P. capsici was successfully isolated from the roots of six of 42 Carolina geranium (Geranium carolinianum) plants, four of 28 American black nightshade (Solanum americanum) plants, and two of 130 common purslane (Portulaca oleracea) plants. All but one of the 12 isolates were of the A1 mating type. All 12 isolates were resistant to mefenoxam, although at different levels. All but one isolate were strongly pathogenic on pepper seedlings. When two or three isolates recovered from each weed were inoculated onto the roots of their weed host of origin, P. capsici was recovered from the roots. Isolates of P. capsici were tested on four other solanaceous weeds of importance or potential importance to agricultural fields in Florida: Solanum nigrum, S. ptycanthum, S. carolinense, and S. capsicoides. Recovery of P. capsici from roots varied with weed species and isolate tested. P. capsici caused disease mortality on S. nigrum, and no reisolation of P. capsici was possible with S. capsicoides. This is the first report o...Continue Reading

References

Mar 21, 1998·Applied and Environmental Microbiology·J B RistainoG Parra
Apr 4, 2001·The Journal of Bone and Joint Surgery. British Volume·M G DennisonB S Singh
Dec 1, 2004·Plant Disease·Mary K Hausbeck, Kurt H Lamour
Feb 1, 2003·Plant Disease·J E HollowellJ W Wilcut
Dec 1, 2002·Plant Disease·Scott Adkins, Erin N Rosskopf
Dec 1, 1999·Plant Disease·Jean Beagle Ristaino, Stephen A Johnston
Jun 1, 1997·Plant Disease·N DissanayakeJ L Griffin

❮ Previous
Next ❯

Citations

Apr 14, 2011·Phytopathology·L M Quesada-OcampoM K Hausbeck
Nov 1, 2013·Plant Disease·M Babadoost, C Pavon
May 1, 2007·Plant Disease·Ronald D French-MonarPamela D Roberts
Apr 15, 2014·Molecular Plant-microbe Interactions : MPMI·Julio C Vega-ArreguínPeter Moffett
Nov 1, 2011·Plant Disease·Anthony P Keinath, Chandrasekar S Kousik
Dec 1, 2007·Plant Disease·Camilla B Yandoc-AblesElizabeth M Lamb
Oct 24, 2008·Phytopathology·O Hurtado-GonzálesK Lamour
Nov 1, 2012·Plant Disease·Leah L GrankeMary K Hausbeck
Oct 14, 2009·Phytopathology·L L GrankeM K Hausbeck

❮ 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.