A Mycetozoan Parasite of Zostera marina

Renn, Charles E.

doi:10.1038/135544b0

Cited by 36 publications

(20 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Atlantic coastlines of North America (Cottam 1933, Cotton 1933, Renn 1935 and Denmark (Petersen 1934, Rasmussen 1973, but is now only locally important (Short et al 1986). Human-induced disturbances, such as dredging, addition of docks, mooring of boats, harvesting of shellfish using rakes or trawls, and use of motorboats in shallow waters have created 'scarred' areas within eelgrass meadows.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

Eelgrass Zostera marina loss in temperate estuaries: relationship to land-derived nitrogen loads and effect of light limitation imposed by algae

Hauxwell¹,

Cebrián²,

Valiela³

2003

Mar. Ecol. Prog. Ser.

264

157

View full text Add to dashboard Cite

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

Eelgrass Zostera marina loss in temperate estuaries: relationship to land-derived nitrogen loads and effect of light limitation imposed by algae

Hauxwell¹,

Cebrián²,

Valiela³

2003

Mar. Ecol. Prog. Ser.

264

157

View full text Add to dashboard Cite

“…In the 1930s, large parts of the Z. marina populations along the Atlantic coasts were killed in an epidemic believed to have been caused by the marine pathogen Labyrinthula zosterae D. Porter & Muehlstein, 1991(Petersen 1934, Renn 1935. This endophytic protist causes black necrotic lesions on Z. marina leaves and is commonly referred to as seagrass wasting disease (Muehlstein et al 1991).…”

Section: Introductionmentioning

confidence: 99%

Seagrass wasting disease varies with salinity and depth in natural Zostera marina populations

Jakobsson-Thor¹,

Toth²,

Brakel³

et al. 2018

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

In the 1930s, the wasting disease pathogen Labyrinthula zosterae is believed to have killed 90% of the temperate seagrass Zostera marina in the Atlantic Ocean. Despite the devastating impact of this disease, the host−pathogen interaction is still poorly understood, and few field studies have investigated factors correlating with the prevalence and abundance of L. zosterae. The present study measured wasting disease in natural populations of Z. marina on the Swedish west coast, and showed a strong correlation between the disease and both salinity and water depth. No infection was detected in Z. marina shoots from low-salinity (13−25 PSU) meadows, whereas most shoots carried the disease in high-salinity (25−29 PSU) meadows. Shallow (1 m) living Z. marina shoots were also more infected compared to shoots in deeper (5 m) meadows. In addition, infection and transplantation experiments showed that Z. marina shoots from low-salinity meadows with low pathogen pressure were more susceptible to L. zosterae infection. The higher susceptibility could not be explained by lower content of inhibitory defense compounds in the shoots. Instead, extracts from all Z. marina shoots significantly reduced pathogen growth, suggesting that Z. marina contains inhibitory compounds that function as a constitutive defense. Overall, the results show that seagrass wasting disease is common in natural Z. marina populations in the study area and that it increases with salinity and decreases with depth. Our findings also suggest that low-salinity areas can act as a refuge against seagrass wasting disease.

show abstract

“…SPIERENBURG (1933) also wrote an early paper on the eelgrass wasting disease, in which she carefully hypothesized that bacteria might be responsible for the disease. The Labyrinthula hypothesis was postulated a couple of years later by RENN (1934RENN ( , 1935RENN ( , 1936. Spierenburg doubted the existence of the 'numerous colourless spindle-shaped organisms, which moved in a very slow amoeboid manner' ( VAN OER WERFF, 1938) Van der Werff of 24 September 1936 she says: 'In my research of the sick eelgrass, I am continuously looking for your so called 'spindles', but they remain rather vague to me.…”

Section: The Eelgrass Wasting Disease In the Early Thirtiesmentioning

confidence: 96%

Causes of the eelgrass wasting disease: Van der Werff's changing theories

Nienhuis

1994

Netherlands Journal of Aquatic Ecology

View full text Add to dashboard Cite

A Mycetozoan Parasite of Zostera marina

Cited by 36 publications

References 4 publications

Eelgrass Zostera marina loss in temperate estuaries: relationship to land-derived nitrogen loads and effect of light limitation imposed by algae

Eelgrass Zostera marina loss in temperate estuaries: relationship to land-derived nitrogen loads and effect of light limitation imposed by algae

Seagrass wasting disease varies with salinity and depth in natural Zostera marina populations

Causes of the eelgrass wasting disease: Van der Werff's changing theories

Contact Info

Product

Resources

About