Formation and early development of the Monostroma nitidum Wittrock

Cui, Jianjun; Wang, Hui; Chen, Chunli; Chen, Xinyi; Chen, Yihui; Weng, Manxin; Huang, Bowen; Huang, Yongjian; Zhu, Dongwenjun; Zhang, Niannian; Xie, Enyi

doi:10.1016/j.aqrep.2021.100759

Cited by 2 publications

(4 citation statements)

References 27 publications

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“…Therefore, species identification in recent taxonomic studies has been confirmed using molecular markers (such as chloroplast rbcL genes, ITS regions, or 5S rDNA regions) combined with morphological characteristics (Blomster 2000;Ding 2015;Cui et al 2018;Yang et al 2020;Tandel et al 2021;VinceCruz-Abeledo et al 2021). The compiled nrITS sequence homology of approximately 600 nucleotide base pairs by Cui et al (2021) found that all Monostroma strains collected from Naozhou Island belonged to the same clade as M. nitidum (AF415170) in the ML (Maximum Likelihood) and NJ (Neighbor joining) phylogenetic trees. The same molecular method and referred sequences were also applied to confirm the identity of Monostroma strains from Guangdong and Zhejiang (Ding 2015).…”

Section: Taxonomymentioning

confidence: 99%

“…The morphology of monostromatic Ulotrichales members varies little; nonetheless, the genera differ in the number of flagella on reproductive cells, ontogeny, and life history (Bast et al 2009a). Cui et al (2021) reported that the thalli of attached Monostroma strains (collected from Dalang, Naozhou Island, near the South China Sea Coast of Zhanjiang City) were yellowish or light green, flat, monostromatic and approximately 11.60 ± 6.23 cm long and 7.55 ± 3.45 cm wide. Cells in surface view were irregularly arranged and triangular or polygonal with three to five rounded corners.…”

Section: Morphology and Anatomymentioning

confidence: 99%

“…A single prominent chloroplast covered most of the outer cell in the surface view and contained mainly one (90%), and rarely two (6%) or three (4%), pyrenoids. Cells in transverse sections were circular or quadrangular with rounded corners and 38.80 ± 2.40 μm thick (Cui et al 2021). Based on morphological and developmental characteristics combined with nuclear-encoded internal transcribed spacer sequences, Cui et al (2021) identified these strains as M. nitidum.…”

Section: Morphology and Anatomymentioning

confidence: 99%

“…Cells in transverse sections were circular or quadrangular with rounded corners and 38.80 ± 2.40 μm thick (Cui et al 2021). Based on morphological and developmental characteristics combined with nuclear-encoded internal transcribed spacer sequences, Cui et al (2021) identified these strains as M. nitidum. Similarly, Wang et al (2015) described the frond of M. nitidum as monostromatic, yellowish-green or light green, 2-15 cm long, and shiny, with a frilly and mangled edge.…”

Section: Morphology and Anatomymentioning

confidence: 99%

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Concise review of green algal genus Monostroma Thuret

et al. 2022

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Monostroma (Ulotrichales, Chlorophyta) is the most intensively cultivated genus among green seaweeds, accounting for over 90% of total green algal cultivation. It is commonly found in the eulittoral zones of marine and estuarine habitats, thus contributing significantly to the ecology of the coastal ecosystem. Morphologically, the frond of Monostroma is blade-like with eponymous one-cell thickness; therefore, it is also known as "Slender sea lettuce". Monostroma nitidum is often used for salad ingredients, boiled tsukudani, soups, etc., due to its health benefits. Monostroma kuroshiense is commercially cultivated in East Asia and South America for the edible product "hitoegusa-nori" or "hirohano-hitoegusa nori", popular sushi wraps. This genus remains one of the well-studied seaweed genera for ecophysiology, habitat-dependent seasonality of its growth pattern, gametangial ontogeny and phylogenetics. Moreover, rhamnan sulfate (RS), a sulfated polysaccharide, is the main component of the fiber extracted from M. nitidum and studied for various biological activities. This review presents the taxonomy, morphology, anatomy, life history, distribution, ecology, physiology, cultivation and harvesting, chemical composition, and biotechnological applications of this genus.

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Section: Taxonomymentioning

confidence: 99%

Section: Morphology and Anatomymentioning

confidence: 99%

Section: Morphology and Anatomymentioning

confidence: 99%

Section: Morphology and Anatomymentioning

confidence: 99%

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Concise review of green algal genus Monostroma Thuret

et al. 2022

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Taxonomic Delimitation of the Monostromatic Green Algal Genera Monostroma Thuret 1854 and Gayralia Vinogradova 1969 (Ulotrichales, Chlorophyta)

et al. 2022

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The genera Monostroma and Gayralia belong to the order of monostromatic green algae; however, their taxonomic delimitation remains controversial at the genus level. This study attempts to address this issue through the combined analysis of the morphology and nuclear-encoded Internal Transcribed Spacer region sequences of monostromatic green algal samples collected in the South China Sea. Our phylogenetic data revealed that the monostromatic specimens were separated into the M. nitidum clade, G. brasiliensis clade, and a single Monostroma sp. clade, and that the inter-genera genetic distance between the Monostroma and Gayralia genera was lower than that observed within the Monostroma genus. All the specimens presented similar morphology in their single cell-layered thallus, with irregularly arranged cells, rounded cell corners, a parietal chloroplast, and predominantly one (>90%) pyrenoid. Their most obvious morphological difference was in thallus thickness and size. Moreover, the monostromatic specimens of the M. nitidum clade corresponded to the morphological description of the M. nitidum-type specimens. The genus Monostroma was erected earlier than the genus Gayralia. Therefore, we propose to assign the genus Gayralia to Monostroma based on the morphological and phylogenetic analysis and genetic distance data presented here.

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Formation and early development of the Monostroma nitidum Wittrock

Cited by 2 publications

References 27 publications

Concise review of green algal genus Monostroma Thuret

Concise review of green algal genus Monostroma Thuret

Taxonomic Delimitation of the Monostromatic Green Algal Genera Monostroma Thuret 1854 and Gayralia Vinogradova 1969 (Ulotrichales, Chlorophyta)

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