Abstract
This study presents a chemotaxonomic investigation of the genus Bostrychia through the quantitation of the major mycosporine-like amino acids (MAAs). The presence of some cryptic species had been suggested in the B. moritziana/B. radicans complex and MAA-profiling in respective samples revealed different chemotypes within this species complex. Another possibly polyphyletic species is Bostrychia simpliciuscula; previous molecular phylogenetic analyses showed four genetic lineages within this species, one of which was recently distinguished as a new species. Phytochemical profiling of those samples used for DNA analyses revealed four different chemotypes, corresponding to the above four lineages and it supports the re-circumscription of the other three B. simpliciuscula lineages. Therefore, mycosporine-like amino acids are considered as suitable chemotaxonomic markers for the reassessment of the classification of B. simpliciuscula. The determination of the MAA patterns in these algae was possible after developing and validating a suitable high-performance liquid chromatography–diode array detector (HPLC-DAD) method.
Highlights
Species of the genus Bostrychia Montagne are a prominent part of the mangrove algal flora in tropical and warm temperate environments [1]
B. simpliciuscula is confined to the tropics, whereas one of the lineages matched a previously described species (B. tenuissima) found in Australasia, another lineage with the previous name B. hamana-tokidae is found in Japan, and the last lineage occurring in central New South Wales is a new species, B. kingii [5]
The method’s applicability for the determination of mycosporine-like amino acids (MAAs) in Bostrychia spp. was proven by showing the differentiation of species belonging to the B. simpliciuscula/B. kingii and B. moritziana/B. radicans complex
Summary
Species of the genus Bostrychia Montagne are a prominent part of the mangrove algal flora in tropical and warm temperate environments [1]. The authors showed that by branched monosiphonous laterals and the rhizoid morphology in haptera, these four lineages can be separated into two groups that, were still not monophyletic. According to their results, B. simpliciuscula is confined to the tropics, whereas one of the lineages matched a previously described species (B. tenuissima) found in Australasia, another lineage with the previous name B. hamana-tokidae is found in Japan, and the last lineage occurring in central New South Wales is a new species, B. kingii [5]. The method’s applicability for the determination of MAAs in Bostrychia spp. was proven by showing the differentiation of species belonging to the B. simpliciuscula/B. kingii and B. moritziana/B. radicans complex
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
