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Tuesday, July 14, 2020 | History

2 edition of Pathogenicity of Fusarium species associated with asparagus decline in Washington found in the catalog.

Pathogenicity of Fusarium species associated with asparagus decline in Washington

Melvin Douglas Grove

Pathogenicity of Fusarium species associated with asparagus decline in Washington

by Melvin Douglas Grove

  • 170 Want to read
  • 16 Currently reading

Published .
Written in English

    Subjects:
  • Asparagus.

  • Edition Notes

    Statementby Melvin Douglas Grove.
    The Physical Object
    Paginationx, 96 l. :
    Number of Pages96
    ID Numbers
    Open LibraryOL16793931M

    Plant Disease is the leading international journal for rapid reporting of research on new, emerging, and established plant diseases. The journal publishes papers that describe translational and applied research focusing on practical aspects of disease diagnosis, development, and management in agricultural and horticultural crops. Fusarium moniliforme as a cause of stem and crown rot of asparagus and its association with asparagus decline. Phytopathology Phytopathology

      The concern for asparagus growers is that certain fusarium species – not all – can weaken the plant if it is stressed by high heat and drought, causing stem, crown and root rot. Growers can diagnose the presence of fungi from the fusarium genome to an extent. Chlorosis (yellowing) and dying back of the ferns is one symptom. Disease suppression of Fusarium crown rot and the changes in free amino acid contents in mycorrhizal asparagus (Asparagus officinalis L., cv. “Welcome”) plants were investigated. Sixteen weeks after arbuscular mycorrhizal fungus (AMF; Glomus intraradices) inoculation, mycorrhizal plants showed higher dry weight of shoots than non-mycorrhizal plants, and AMF Cited by: 7.

      Since the s, consumer demand for new plant products gave opportunity for many plant pathogens to disseminate to new areas on imported seeds. New markets for plant commodities encouraged plant breeders to begin collecting seed stocks from abroad. The birth of new seed companies extend their markets to new area. These events began the global Cited by: OUTPUTS: Species of the fungus, Fusarium, form the anamorph or asexual stages of Gibberella, Nectria, and Cosmospora teleomorphs. These species cause crown, stem, fruit, and root rots, as well as head blights, stalk rots, and vascular wilts.


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Pathogenicity of Fusarium species associated with asparagus decline in Washington by Melvin Douglas Grove Download PDF EPUB FB2

Asparagus decline is a disease associated with several species of Fusarium. In order to assess the relative significance of causative species, single‐stranded conformational polymorphism (SSCP) analysis of the ITS2 (internal transcribed sequence) region of the ribosomal DNA was used to rapidly and objectively identify the fusarial populations associated with the roots of two intensively sampled asparagus crops.

See: Asparagus (Asparagus sp.)-Fusarium Crown and Root Rot. Asparagus (Asparagus sp.)-Purple Spot. Asparagus (Asparagus sp.)-Virus Diseases. Cause Many factors, including: allelopathic residues, acidic soils, soil compaction, winter crown injury, insects, weeds, and several diseases, can contribute to decline of asparagus plants.

The diseases that have been implicated include Fusarium. Abstract. The genus Fusarium includes numerous toxigenic species that are pathogenic to plants or humans, and are able to colonize a wide range of environments on earth. The genus comprises around 70 well-known species, identified by using a polyphasic approach, and as many as putative species, according to phylogenetic species concepts; many putative species Cited by: Wong J.Y., Jeffries P., Diversity of pathogenic Fusarium populations associated with asparagus roots in decline soils in Spain and the UK.

Plant Pathol. – Fusarium spp. as a causal agent of Asparagus Decline 17 Objectives 19 2 INCIDENCE OF FUSARIUMSPP. IN ASPARAGUS FIELDS IN MEXICO AND SOUTHERN CALIFORNIA 21 Introduction 21 Material and Methods 23 Isolation protocol of Fusarium spp. from asparagus crowns 24 Identification of Fusarium species 25 Pathogenicity Tests Fusarium asiaticum: An Emerging Pathogen Jeopardizing Postharvest Asparagus Spears Article in Journal of Phytopathology (10) October.

pathogen of a separate disease of asparagus. Fusarium stem and crown rot is the proposed name for this disease. Both Fusarium stem and crown rot and Fusarium wilt and root rot caused by F. oxysporum f.

asparagi are associated with asparagus decline in New Jersey. declined (5). In California. Fusarium oxysporum (Schlecht.) emend. Snyd. Asparagus decline is a complex problem involving biotic and abiotic factors. The main pathogens associated with Asparagus decline in the US are Fusarium oxysporum and F.

proliferation. The incidence of fusarium root rot, caused by Fusarium oxysporum f. asparagi (Foa), was investigated in seedlings of asparagus (Asparagus officinalis L., cv. Mary Washington. Fusarium is one of the most economically important fungal genera because of yield loss due to plant pathogenic activity; mycotoxin contamination of food and feed Author: Gary Munkvold.

Fusarium. species in asparagus decline fields by PCR-SSCP analysis. However, the diseases are still difficult to control because no resistant cultivar or disin-festing method has been developed. On the other hand, biological control of disease was t. Fusarium ried by in-oculation with non-pathogenic isolates of the Fusarium species [10,11].File Size: 1MB.

Fusariosis associated with pathogenic Fusarium species colonization of a hospital water system: A new paradigm for the epidemiology of opportunistic mold infections. Clinical Infectious Diseases – (oxysporum, solani). Diversity of pathogenic Fusarium populations associated with asparagus roots in decline soils in Spain and the UK.

Asparagus decline is a disease associated with several species of Fusarium. Fusarium is a major agricultural plant pathogen of temperate growing regions, where it causes Fusarium head blight in wheat, barley, triticale, and other grains.

Michael Rychlik, in Chemical Contaminants and Residues in Food (Second Edition), Fusarium species infect crop plants worldwide in moderate climate zones. A review of the diseases causing the decline of asparagus one of the most important perennial vegetable crops in the United States, is provided.

Diseases caused by the fungal pathogens Fusarium oxysporum asparagi,Gibberella fujikuroi, Puccinia asparagi, Pleospora herbarum and Cercospora asparagi and potential methods for disease management are by: The dominant Fusarium species among the endophytic microflora was F.

oxysporum. Other frequently isolated species included F. proliferatum, F. sambucinum, F. culmorum, F. avenaceum and F. equiseti. The incidence of F. proliferatum -infected asparagus spears was less than 10% at four of the six sampling by: 3.

Pathogenicity of Three Fusarium Species Associated with Asparagus Decline in South Africa. Schreuder. Pages: VIEW ABSTRACT | VIEW ARTICLE. Occurrence of Glomerella cingulata in Pecan Nut Shucks and Its Association with Fungal Leaf Scorch. Latham. Pages: VIEW ABSTRACT | VIEW ARTICLE.

Nonpathogenic strains of Fusarium oxysporum (NPFO) were tested alone, and in combination with rock salt (NaCl), for their ability to suppress fusarium crown and root rot of asparagus.

Fusarium species cause important diseases in many crops. Lack of knowledge on how Fusarium species and strains interact with their environment hampers growth management strategies to control root diseases.

Asparagus decline is a complex problem involving biotic and abiotic factors. The main pathogens associated with asparagus decline in the US are Fusarium oxysporum and F.

proliferatum. Plant and soil samples were collected from twenty-two declining and twenty-six non-declining asparagus fields in Washington and Oregon between and. The pathogen represents a group that contains many genetically distinct members (5,24,57).

Pathogenicity on asparagus may be an unspecialized trait that appears frequently in F. oxysporum. On the other hand, F. proliferatum appears to belong to one mating group (15,19,25). Because perithecia are not found in nature. Matsubara et al. found that AMF reduced Fusarium root rot in asparagus seedlings, and that the strength of this reduction was AMF species-specific.

Asparagus-associated Mn-reducing bacteria were shown to increase in number following NaCl application, and were consequently hypothesized to be behind the reduction of Fusarium diseases Cited by:   Pathogenic Fusarium fungi are likely able to enter the asparagus plant through the physical damage of miner oviposition holes and larval tunnels.

Early decline from Fusarium can shorten the economic lifespan of asparagus fields by 5 .