Viruses of Seaweeds

Schroeder, Declan C.; McKeown, Dean Andrew

doi:10.1002/9781119608370.ch4

Cited by 4 publications

(2 citation statements)

References 87 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Partners of algae include viruses [ 72 , 73 , 74 , 75 ] and bacteria [ 12 , 25 , 76 ], as well as eukaryotic organisms such as fungi [ 77 , 78 , 79 , 80 ] or even sloths [ 81 ]. For this review, we will focus on the bacterial partners of algae.…”

Section: Introductionmentioning

confidence: 99%

Exchange or Eliminate: The Secrets of Algal-Bacterial Relationships

Burgunter-Delamare,

Shetty,

Vuong

et al. 2024

Plants

View full text Add to dashboard Cite

Algae and bacteria have co-occurred and coevolved in common habitats for hundreds of millions of years, fostering specific associations and interactions such as mutualism or antagonism. These interactions are shaped through exchanges of primary and secondary metabolites provided by one of the partners. Metabolites, such as N-sources or vitamins, can be beneficial to the partner and they may be assimilated through chemotaxis towards the partner producing these metabolites. Other metabolites, especially many natural products synthesized by bacteria, can act as toxins and damage or kill the partner. For instance, the green microalga Chlamydomonas reinhardtii establishes a mutualistic partnership with a Methylobacterium, in stark contrast to its antagonistic relationship with the toxin producing Pseudomonas protegens. In other cases, as with a coccolithophore haptophyte alga and a Phaeobacter bacterium, the same alga and bacterium can even be subject to both processes, depending on the secreted bacterial and algal metabolites. Some bacteria also influence algal morphology by producing specific metabolites and micronutrients, as is observed in some macroalgae. This review focuses on algal-bacterial interactions with micro- and macroalgal models from marine, freshwater, and terrestrial environments and summarizes the advances in the field. It also highlights the effects of temperature on these interactions as it is presently known.

show abstract

Section: Introductionmentioning

confidence: 99%

Exchange or Eliminate: The Secrets of Algal-Bacterial Relationships

Burgunter-Delamare,

Shetty,

Vuong

et al. 2024

Plants

View full text Add to dashboard Cite

show abstract

“…Half of these pathogen-caused diseases have a viral origin, which makes plant viruses a severe threat to global food security (Savary et al ., 2019; He & Creasey Krainer, 2020). However, in contrast to plant viruses, little is known about the diversity of viruses in seaweed, especially RNA viruses (Schroeder and McKeown, 2021). Given the ancient evolutionary origin of seaweeds, as well as the abundant presence of RNA viruses in plants (Wu et al ., 2022), it is to be expected that seaweeds are host to many RNA virus species.…”

Section: Introductionmentioning

confidence: 99%

Discovery of novel RNA viruses in commercially relevant seaweedsAlaria esculentaandSaccharina latissima

Dekker,

de Leeuw,

van Olst

et al. 2024

Preprint

View full text Add to dashboard Cite

Seaweeds are increasingly recognized as sustainable food sources; however, their large-scale cultivation faces challenges similar to land crops, including susceptibility to pathogens. Plant viruses pose a significant threat to global food security, yet little is known about the diversity of viruses in seaweeds. This study investigates virus-associated small interfering RNA (siRNA) responses in commercially relevant seaweed species to understand RNA virus diversity, particularly in edible varieties. Through small RNA sequencing of 16 samples fromSaccharina latissimaandAlaria esculenta, we identified three new RNA viruses Aev-NL1, Slv-NL2 and Slv-NL3, and one new DNA virus (phaeovirus). The partial genome of the new DNA virus was discovered in theA. esculentasamples and shared 67% DNA sequence identity with the major coat protein of the large double-stranded DNA phaeovirusFeldmannia irregularisvirus a. In four out of fiveA. esculentasamples, a new bisegmented ormycovirus-like RNA virus (Aev-NL1) was identified. A similar new virus, Slv-NL1, was found in previously publishedS. latissimaRNA-seq data, sharing 87% sequence identity with Aev-NL1. Lastly, two novel RNA viruses, Slv-NL2 and Slv-NL3, were discovered in all eightS. latissimasamples sharing limited similarity at the genome level but high sequence identity at protein level of both ORFs (>94%). Further investigation of the novel viruses' presence across our limited set of samples revealed no conclusive associations with diseased seaweed phenotypes. The discovery of four new viruses in only a limited set of samples highlights the presence of previously unrecognized viral diversity in seaweed, thereby underscoring the importance of understanding viral diversity in seaweed as its virome is currently understudied

show abstract

The sugar kelp Saccharina latissima I: recent advances in a changing climate

Diehl,

Li,

Scheschonk

et al. 2023

Annals of Botany

View full text Add to dashboard Cite

Background The sugar kelp Saccharina latissima is a Laminariales species widely distributed in the Northern Hemisphere. Its physiology and ecology have been studied since the 1960s, given its ecological relevance on western temperate coasts. However, research interest has been rising recently, driven mainly by reports of negative impacts of anthropogenically induced environmental change and by the increased commercial interest in cultivating the species, with several industrial applications for the resulting biomass. Scope We used a variety of sources published between 2009 to May 2023 (but including some earlier literature where required), to provide a comprehensive review of the ecology, physiology, biochemical and molecular biology of S. latissima. In so doing we aimed to better understand the species’ response to stressors in natural communities, but also inform the sustainable cultivation of the species. Conclusion Due to its wide distribution, S. latissima has developed a variety of physiological and biochemical mechanisms to adjust to environmental changes, including adjustments in photosynthetic parameters, modulation of osmolytes and antioxidants, reprogramming of gene expression and epigenetic modifications, among others summarized in this review. This is particularly important because massive changes in the abundance and distribution of S. latissima have already been observed. Namely, presence and abundance of S. latissima has significantly decreased at the rear edges on both sides of the Atlantic, and increased in abundance at the polar regions. These changes were mainly caused by climate change and will therefore be increasingly evident in the future. Recent developments in genomics, transcriptomics and epigenomics have clarified the existence of genetic differentiation along its distributional range with implications in the fitness at some locations. The complex biotic and abiotic interactions unraveled here demonstrated the cascading effects the disappearance of a kelp forest can have in a marine ecosystem. We show how S. latissima is an excellent model to study acclimation and adaptation to environmental variability and how to predict future distribution and persistence under climate change.

show abstract

Viruses of Seaweeds

Cited by 4 publications

References 87 publications

Exchange or Eliminate: The Secrets of Algal-Bacterial Relationships

Exchange or Eliminate: The Secrets of Algal-Bacterial Relationships

Discovery of novel RNA viruses in commercially relevant seaweedsAlaria esculentaandSaccharina latissima

The sugar kelp Saccharina latissima I: recent advances in a changing climate

Contact Info

Product

Resources

About