New species of Fusarium associated with dieback of Spartina alterniflora in Atlantic salt marshes

  title={New species of Fusarium associated with dieback of Spartina alterniflora in Atlantic salt marshes},
  author={Wade H. Elmer and Roberta Marra},
  pages={806 - 819}
Sudden vegetation dieback (SVD) is the loss of smooth cordgrass (Spartina alterniflora) along intertidal creeks in salt marshes of the Atlantic and Gulf states. [] Key Result Isolations from seven SVD sites yielded 192 isolates of Fusarium spp., with more than 75% isolated from aboveground tissue. Most isolates (88%) fell into two undescribed morphospecies (MS) distinguished from each other by macroconidial shape, phialide ontogeny and growth rates.

Pathogenic Microfungi Associated with Spartina in Salt Marshes

The last fungus discussed (Phaeosphaeria spartinicola) did not incite disease, but was highlighted due to its important function as a saprobe and in its facultative, mutualistic relationship with the herbivorous periwinkle snail.

A Tripartite Interaction Between Spartina alterniflora, Fusarium palustre, and the Purple Marsh Crab (Sesarma reticulatum) Contributes to Sudden Vegetation Dieback of Salt Marshes in New England.

  • W. Elmer
  • Environmental Science
  • 2014
Several hypotheses relating to nutrition, chemotaxis, and visual attraction are presented to explain how stress from drought or disease might favor herbivory.

Indirect effects of non‐native Spartina alterniflora and its fungal pathogen (Fusarium palustre) on native saltmarsh plants in China

Fusarium palustre was associated with the dieback of Spartina alterniflora in its native North American saltmarshes and was found to be closely associated with Phragmites dieback in the Dongtan wetland, suggesting that Spartina might not escape from its pathogen when being introduced from itsnative North America and has indirectly caused the die back of PhragMites in China.

Fusarium chaquense, sp. nov, a novel type A trichothecene–producing species from native grasses in a wetland ecosystem in Argentina

It is concluded that the Chaco wetland isolates are a distinct and novel species, herein described as Fusarium chaquense, sp.

Current Status of Fusarium and Their Management Strategies

  • A. Bahadur
  • Fusarium - An Overview on Current Status of the Genus [Working Title]
  • 2021
Fusarium spp. is one of the most economically important plant pathogens causing a wide range of plant diseases with significant crop losses globally. Fusarium wilt is a major problem all over the

Identification and Characterization of Fusarium Species Associated with Wilt of Eleocharis dulcis (Chinese water chestnut) in China.

Maximum parsimony and Bayesian analyses of the multilocus sequence data of these two species showed that the two species formed two distinct, well-supported clades among the three individual and combined gene genealogies.

Response and resilience of Spartina alterniflora to sudden dieback

We measured an array of biophysical and spectral variables to evaluate the response and recovery of Spartina alterniflora to a sudden dieback event in spring and summer 2004 within a low marsh in



Salt Marsh Claviceps purpurea in Native and Invaded Spartina Marshes in Northern California.

Under field conditions, S. foliosa sustained a higher incidence of disease in coastal marshes than in marshes within the bay, which may be attributable to environmental differences between the coast and the bay proper, with the former being more conducive to infection by C. purpurea.

Fusarium species associated with asparagus crowns and soil in Australia and New Zealand

Crown and root rot, a destructive disease of asparagus caused by Fusarium oxyspomm and F. proliferatum occurs in many countries, but has been reported only once in Australia. This may be because the

Seasonal Occurrence and Distribution of Fungi Associated with Spartina Alterniflora from a Rhode Island Estuary

The seasonal occurrence and distribution of filamentous fungi on the aerial parts of salt marsh cordgrass, Spartina alterniflora, along a Rhode Island estuary were studied and indicate there may be a characteristic mycota associated with S. alterniflore.

The long‐term epidemic of Claviceps purpurea on Spartina anglica in Poole Harbour: pattern of infection, effects on seed production and the role of Fusarium heterosporum

The high, and temporally and spatially uniform levels of ergot infection probably result from genetic uniformity of Spartina and the lack of zonation in the salt marshes of Poole Harbour, and is likely to persist for the foreseeable future.

Surveys of Fusaria and Other Fungi Associated with Stalk Rot of Maize in Eastern Australia

Fusarium roseum 'Graminearum' was the predominant fungus associated with stalk rot of maize in eastern Australia in the 1972, 1973 and 1974 growing seasons. All isolates of this pathogen were of the

Taxonomy and phylogeny of the Fusarium dimerum species group

Phylogenetic analyses based on combined sequences of the internal transcribed spacer region, LSU rDNA and partial sequences ofThe elongation factor 1-alpha and beta-tubulin genes identified a clade of several species producing predominately 2-septate macroconidia as the reciprocally monophyletic sister of F. dimerum.

Acute salt marsh dieback in the Mississippi River deltaic plain: a drought‐induced phenomenon?

The results suggest that large-scale changes in coastal vegetation may occur over a relatively short time span through climatic extremes acting in concert with sea-level fluctuations and pre-existing soil conditions.

Association between Mn-reducing root bacteria and NaCl applications in suppression of Fusarium crown and root rot of asparagus.

The interrelationships among NaCl treatments, suppression of Fusarium crown and root rot, and increases in Mn-reducing rhizobacteria tended to support the hypothesis that increased Mn availability contributes to disease resistance in asparagus.

Claviceps Purpurea on Spartina in Coastal Marshes

The ergot fungus Claviceps purpurea was found on Spartina alterniflora throughout Gulf and Atlantic coastal marshes, and conditions for germination of sclerotia are given along with some details of stromal morphology.