LAMINARIOCOLAX SP. (PHAEOPHYCEAE) ASSOCIATED WITH GALL DEVELOPMENTS IN LESSONIA NIGRESCENS (PHAEOPHYCEAE) 1

@article{Thomas2009LAMINARIOCOLAXS,
  title={LAMINARIOCOLAX SP. (PHAEOPHYCEAE) ASSOCIATED WITH GALL DEVELOPMENTS IN LESSONIA NIGRESCENS (PHAEOPHYCEAE) 1},
  author={Daniela Thomas and Jessica Beltr{\'a}n and V. Flores and Loretto Contreras and Edda Bollmann and Juan A. Correa},
  journal={Journal of Phycology},
  year={2009},
  volume={45}
}
As part of a long‐term study on the biology and ecology of the intertidal kelp Lessonia nigrescens Bory, we report on the occurrence of gall development on this alga, identified the possible causal agent, and assessed the extent of the phenomenon in two wild stands of the host. Our results showed that galls affecting natural populations of L. nigrescens were associated with the infection by a filamentous brown algal endophyte of the genus Laminariocolax. Assignment to Laminariocolax of the… 
View on Wiley
ncbi.nlm.nih.gov
13 Citations
Background Citations
6
Methods Citations
1
Results Citations
1

13 Citations

Diversity, biogeography and host specificity of kelp endophytes with a focus on the genera Laminarionema and Laminariocolax (Ectocarpales, Phaeophyceae)

The results suggest that specific host-endophyte patterns could exist locally, as found in kelps in Brittany where all endophytes isolated from S. latissima were L. elsbetiae, and those isolated from Laminaria hyperborea were Laminariocolax atlanticus and L. aecidioides.

Different Early Responses of Laminariales to an Endophytic Infection Provide Insights About Kelp Host Specificity

Results suggest that expression pattern differences between the two kelps related to the recognition of the endophyte and later defense reactions could explain the variability of observed physiological responses and host-endophyte specificity in kelp natural populations.

Gall disease in the alginophyte Lessonia berteroana: A pathogenic interaction linked with host adulthood in a seasonal-dependant manner

Life history bias in endophyte infection of the Antarctic rhodophyte, Iridaea cordata

The differential presence of filamentous algal endophytes indicates that endophyte pathogenicity indirectly has greater effect on tetrasporophyte and unfertilized gametophytes than on the carposporophytes, which house the products of sexual recombination.

A highly prevalent filamentous algal endophyte in natural populations of the sugar kelp Saccharina latissima is not detected during cultivation in Northern Brittany

The results suggest that infections of cultivated S. latissima with the endophyte L. elsbetiae might be a minor problem in kelp farms in Northern Brittany if the seeding production is kept under controlled conditions without external contamination.

Wart-like spot formation on the fronds of Chondrus ocellatus (Gigartinales) by a brown alga, Mikrosyphar zosterae (Ectocarpales) in Korea

M. zosterae is a causative agent producing wart-like spots on Chondrus fronds, which is a new record in red seaweeds and was confirmed in the laboratory culture for the first time.

Intimate Associations Between Epiphytes, Endophytes, and Parasites of Seaweeds

  • P. Potin
  • Environmental Science, Biology
  • 2012
Major progresses have been done in recent years in characterizing some mechanisms of cross-talk involved in host specificity, the role of bacterial biofilms in mediating some interactions, as well as host defenses that impact the diversity of these associations through allelopathic interactions.

The status of kelp exploitation and marine agronomy, with emphasis on macrocystis pyrifera, in chile

Effects of temperature and light on the growth and reproduction of an endophytic pest alga Ectocarpus siliculosus (Ectocarpales) found in wild Gracilaria textorii (Gracilariales)

Evaluation of kelp harvest strategies: recovery of Lessonia berteroana (Phaeophyceae, Laminariales) in Pan de Azucar, Atacama, Chile

The brown alga, Lessonia berteroana, is the most exploited seaweed in South America, with majority of landings in northern Chile. We conducted population studies in a L. berteroana bed at the Pan de…

References

SHOWING 1-10 OF 44 REFERENCES

High prevalence of infection by endophytic brown algae in populations of Laminaria spp. (Phaeophyceae)

This is the first epidemiological study comparing the prevalence and effects of kelp endophytes in different hosts at the same locality and found that at a more exposed site, prevalence was higher and disease symptoms stronger than at a sheltered locality.

MOLECULAR EVIDENCE FROM nrDNA ITS SEQUENCES THAT LAMINARIOCOLAX (PHAEOPHYCEAE, ECTOCARPALES SENSU LATO) IS A WORLDWIDE CLADE OF CLOSELY RELATED KELP ENDOPHYTES

A molecular phylogeny for endophytic taxa isolated from kelps and red algae, and for putative epiphytic and free‐living relatives, was inferred from partial small subunit and complete internal transcribed spacer nuclear ribosomal DNA sequences, which revealed the following results.

DEFORMATIVE DISEASE IN IRIDAEA LAMINARIOIDES (RHODOPHYTA): GALL DEVELOMENT ASSOCIATED WITH AN ENDOPHYTIC CYANOBACTERIUM 1

A disease affecting wild populations of the red alga Iridaea laminarioides Bory in central Chile is described, characterized by gall development on the surface of sporophytic, cystocarpic, and immature thalli, which result in severe morphological alterations of the affected thalli.

ENDOPHYTIC ALGAE OF CHONDRUS CRISPUS (RHODOPHYTA). III. HOST SPECIFICITY 1

Cross‐infection experiments showed that A. operculata is host specific and developed only in sporophytic fronds of Chondrus crispus Stackh, and A. heteroclada was not host specific, infecting all offered hosts, including carrageenophytes and agarophytes.

Streblonema (Ectocarpales, Phaeophyceae) infection in the kelp Laminaria saccharina (Laminariales, Phaeophyceae) in the western Baltic

Both field and laboratory observations indicate that a lag phase exists between infection and outbreak of the Streblonema disease, and juvenile hosts, which mainly appear in autumn, are infected at almost the same rate.

MORPHOLOGY AND DEVELOPMENT OF HYPERPLASIA ON CYSTOSEIRA OSMUNDACEA (PHAEOPHYTA) ASSOCIATED WITH HALOGUIGNARDIA IRRITANS (ASCOMYCOTINA)

  • K. Apt
  • Environmental Science
  • 1988
The tissue of Cystoseira osmundacea (Tum.) C. Ag. (Fucales, Phaeophyta) undergoes pronounced developmental changes when in association with the fungus Haloguignardia irritans (Setchell et Estee)…

Comunidades de macroinvertebrados en discos adhesivos de lessonia nigrescens bory (phaeophyta) in chile central

Aggregation of increasing numbers of species characterizes the pattern of colonization of L. nigres­ cens holdfasts, which differs from the classic models of specific succesion which are based on species replacement.

Molecular and morphologically distinct Scytosiphon species (Scytosiphonales, Phaeophyceae) display similar antioxidant capacities 1

The taxonomic status of an alga with complanate thalli, occurring in central Chile and belonging to the genus Scytosiphon, was elucidated and biochemical analyses of copper‐induced antioxidant responses in S. gracilis and S. lomentaria showed an identical increase in antioxidant enzyme activities, suggesting that copper tolerance might be a constitutive trait in these species of Scytosaurs.

INFECTIOUS DISEASES OF MAZZAELLA LAMINARIOIDES (RHODOPHYTA): CHANGES IN INFECTION PREVALENCE AND DISEASE EXPRESSION ASSOCIATED WITH SEASON, LOCALITY, AND WITHIN‐SITE LOCATION 1

It is demonstrated that Endophyton ramosum is the most frequent infective pathogen affecting M. laminarioides in Matanzas and Pucatrihue and effects of seasonality and locality on infection prevalence may be influenced, at least in part, by the position of the hosts an the intertidal zone.

Mass-occurrence of a brown filamentous endophyte in the lamina of the kelp Laminaria hyperborea (Gunnerus) foslie along the southwestern coast of Norway

There was no correlation between infested areas of the old lamina and the formation of the new lamina in early winter, and many kelp plants were observed without lamina.