English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background  As a unique sulfated polysaccharide, fucoidan is an important component of cell wall in brown seaweeds. Its biochemical properties are determined by the positions and quantity of sulfate groups. Sulfotransferases (STs) catalyze the sulfation process, which transfer the sulfuryl groups to carbohydrate backbones and are crucial for fucoidan biosynthesis. Nevertheless, the structures and functions of  STs  in brown seaweeds are rarely investigated.    Results  There are a total of 44  ST  genes identified from our genome and transcriptome analysis of  Saccharina japonica , which were located in the 17 scaffolds and 11 contigs. The  S. japonica ST  genes have abundant introns and alternative splicing sites, and five tandem duplicated gene clusters were identified. Generally, the  ST  genes could be classified into five groups (Group I ~ V) based on phylogenetic analysis. Accordingly, the ST proteins, which were encoded by genes within the same group, contained similar conserved motifs. Members of the  S. japonica ST  gene family show various expression patterns in different tissues and developmental stages. Transcriptional profiles indicate that the transcriptional levels of more than half of the  ST  genes are higher in kelp basal blades than in distal blades. Except for  ST5  and  ST28,  most  ST  genes are down-regulated with the kelp development stages. The expression levels of nine  ST genes  were detected by real-time quantitative PCR, which demonstrates that they responded to low salinity and drought stresses.    Conclusions  Various characteristics of the  STs  allow the feasibilities of  S. japonica  to synthesize fucoidans with different sulfate groups. This enables the kelp the potential to adapt to the costal environments and meet the needs of  S. japonica  growth.

bmc plant biology

Genome-wide analysis of the Saccharina japonica sulfotransferase genes and their transcriptional profiles during whole developmental periods and under abiotic stresses