First report of <i>Phomopsis asparagi</i> causing stem blight of asparagus in Greece

Elena, K.

doi:10.1111/j.1365-3059.2005.01265.x

Cited by 24 publications

(14 citation statements)

References 4 publications

(2 reference statements)

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“…References: Reifschneider and Lopes 1982;Sherf and Macnab 1986;Davis 2001;Elena 2006;Reclame 2010 Phomopsis arnoldiae B. Sutton, Coelomycetes: 571 (1980) Disease and host: Stem canker and dieback of Elaeagnus angustifolia (Russian olive) Eucalyptus globulus, E. grandis, Phoenix hanceana and Juglans nigra Distribution: Canada (Ontario), Hong Kong, Italy, north eastern United States, Uruguay Notes: Sutton (1980) provided this specific name (P. arnoldiae) for P. elaeagni Carter & Sacamano, which was a homonym of P. elaeagni Sacc.…”

Section: Names Of Common Phytopathogens In Current Usementioning

confidence: 98%

The genus Phomopsis: biology, applications, species concepts and names of common phytopathogens

et al. 2011

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The genus Phomopsis (teleomorph Diaporthe) comprises phytopathologically important microfungi with diverse host associations and a worldwide distribution. Species concepts in Phomopsis have been based historically on morphology, cultural characteristics and host affiliation. This paper serves to provide an overview of the current status of the taxonomy in Phomopsis with special reference to biology, applications of various species, species concepts, future research perspectives and names of common pathogens, the latter being given taxonomic reappraisal. Accurate species identification is critical to understanding disease epidemiology and in developing effective control measures for plant diseases. Difficulties in accurate species identification using morphology have led to the application of alternative approaches to differentiate species, including virulence and pathogenicity, biochemistry, metabolites, physiology, antagonism, molecular phylogenetics and mating experiments. Redefinition of Phomopsis/Diaporthe species has been ongoing, and some species have been redefined based on a combination of molecular, morphological, cultural, phytopathological and mating type data. Rapid progress in molecular identification has in particular revolutionized taxonomic studies, providing persuasive genetic evidence to define the species boundaries. A backbone ITS based phylogenetic tree is here in generated using the sequences derived from 46 type, epitype cultures, and vouchers and is presented as a rough and quick identification guide for species of Phomopsis. The need for epitypification of taxonomic entities and the need to use multiple loci in phylogenies that better reflect species limits are suggested. The account of names of phytopathogens currently in use are listed alphabetically and annotated with a taxonomic entry, teleomorph, associated hosts and disease symptoms, including brief summaries of taxonomic and phylogenetic research. Available type culture information and details of gene sequences derived from type cultures are also summarized and tabulated.

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Section: Names Of Common Phytopathogens In Current Usementioning

confidence: 98%

The genus Phomopsis: biology, applications, species concepts and names of common phytopathogens

et al. 2011

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“…The disease causes cladodes to turn yellow and later brown with complete desiccation and stem death. It is a destructive disease of asparagus reported in many parts of the world such as the United States, China, Japan, France, Germany, Brazil, and Peru, particularly in humid areas (Davis, 2001;Elena, 2006;Reifschneider and Lopes, 1982).…”

mentioning

confidence: 99%

Suppressive Effect of Silicon Nutrient on Phomopsis Stem Blight Development in Asparagus

Lü¹,

Jian²,

Zhang³

et al. 2008

horts

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The effects of silicon nutrition on the resistance to stem blight caused by Phomopsis asparagi was assessed in two asparagus cultivars, UC157 and Gynlim, and the activation of defense responses in inoculated plants was measured in a greenhouse with nutrient solution culture. The supply of silicon (Si) significantly suppressed stem blight development in inoculated plants. The disease index was significantly reduced in Si-supplied plants compared with Si-deprived plants in both cultivars. Supplement with Si enhanced Si accumulation in asparagus root and shoot. Si content was significantly higher in Si-treated plants when compared with control plants, but it was not significantly different between the two cultivars. Interestingly, inoculation with P. asparagi increased Si content in shoots in the cultivar UC157. Root-applied Si significantly enhanced the activities of pathogenesis-related proteins (PRs) such as catalase, peroxidase, polyphenoloxidase, and β-1, 3-glucanase in inoculated plants. However, Si treatment mostly failed to change significantly the activity of PRs in plants without fungal attack. So continuous feeding of Si to the plant is probably important for enhancing the resistance to infection by P. asparagi in asparagus.

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“…The losses caused by plant pathogenic fungi have attracted wide attention throughout the world. For example, Phomopsis asparagi can cause stem blight of asparagus and subsequent yield loss; the premature plant death caused by Colletotrichum Lagenarium can lead to a yield loss of 6-48% (Chen & Dai, 2012;Elena, 2006). Therefore, three common plants-threatening fungi, C. Lagenarium, P. asparagi, and Fusarium oxysporum, were selected to evaluate the antifungal properties of the derivatives by hypha measurement in vitro.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and antifungal activity of novel inulin derivatives with chlorinated benzene

Guo

Wang

et al. 2014

Carbohydrate Polymers

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a b s t r a c tA group of novel inulin derivatives containing benzene or chlorinated benzene were synthesized by reaction of chloracetyl inulin (CAIL) with the Schiff bases of 4-amino-pyridine, including (2-pyridyl)acetyl inulin chloride (PAIL), 2-[4-(2-chlorobenzylideneamino)-pyridyl]acetyl inulin chloride (2CPAIL), 2-[4-(4-chlorobenzylideneamino)-pyridyl]acetyl inulin chloride (4CPAIL), and 2-[4-(2,4-dichlorobenzylideneamino)-pyridyl]acetyl inulin chloride (2,4DCPAIL). Their antifungal activity against three kinds of phytopathogens was estimated by hypha measurement in vitro. Of all the synthesized chitosan derivatives, 2,4DCPAIL inhibited the growth of the tested phytopathogens with inhibitory indices of 67%, 47%, and 43% against Colletotrichum lagenarium (Pass) Ell.et halst, Phomopsis asparagi (Sacc.) Bubak and Fusarium oxysporum (schl.) F.sp. niveum (F. oxysporum) respectively at 1.0 mg/mL. The results indicate that all the inulin derivatives have better antifungal activity than inulin, and the inhibitory index is affected by the chlorine atom grafted to the inulin derivatives.

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First report of Phomopsis asparagi causing stem blight of asparagus in Greece

Cited by 24 publications

References 4 publications

The genus Phomopsis: biology, applications, species concepts and names of common phytopathogens

The genus Phomopsis: biology, applications, species concepts and names of common phytopathogens

Suppressive Effect of Silicon Nutrient on Phomopsis Stem Blight Development in Asparagus

Synthesis, characterization, and antifungal activity of novel inulin derivatives with chlorinated benzene

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