Chemosystematics of Marchantiophyta

Asakawa, Yoshinori; Ludwiczuk, Agnieszka; Nagashima, Fumihiro

doi:10.1007/978-3-7091-1084-3_8

Cited by 3 publications

(4 citation statements)

References 337 publications

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“…The results of a phylogenetic analysis indicate that the shift from angiosperms to thalloid bryophytes only occurred once, indicating that these two groups of plants are distantly related in terms of their resource space. The monophyly of thallus-mining insects of thalloid liverworts and hornworts is not supported, suggesting that the division between liverworts and hornworts in resource space is not clear-cut, despite their chemical differences [49]. This outcome underscores the complicated history of Phytoliriomyza , as the observed pattern of host–plant utilization cannot be explained solely based on chemical differences.…”

Section: Discussionmentioning

confidence: 99%

Recent origin and diversification accompanied by repeated host shifts of thallus-mining flies (Diptera: Agromyzidae) on liverworts and hornworts

et al. 2023

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Despite the vast diversity of phytophagous insects that feed on vascular plants (tracheophytes), insects that feed on bryophytes remain understudied. Agromyzidae, one of the most species-rich phytophagous clades in Diptera, consists mainly of leaf-mining species that feed on tracheophytes. However, a recent discovery of thallus-mining species on liverworts and hornworts within the Liriomyza group of Phytomyzinae provides an opportunity to study host shifts between tracheophytes and bryophytes. This study aimed to explore the origin and diversification of thallus-miners and estimate the pattern and timing of host shifts. Phylogenetic analysis of Phytomyzinae has revealed that the thallus-mining agromyzids formed a separate clade, which was sister to a fern pinnule-miner. The diversification of bryophyte-associated agromyzids since the Oligocene involved multiple host shifts across various bryophyte taxa. The diversification of the thallus-mining Phytoliriomyza may have occurred at the same time as the leaf-mining agromyzid flies on herbaceous plants, indicating a dynamic history of interactions between bryophytes and herbivores in angiosperms-dominated ecosystems.

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Section: Discussionmentioning

confidence: 99%

Recent origin and diversification accompanied by repeated host shifts of thallus-mining flies (Diptera: Agromyzidae) on liverworts and hornworts

et al. 2023

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“…Phytochemical studies have shown that liverworts have a large number of biologically active compounds, such as terpenoids and aromatic compounds, and some of them can be important for humans. Many of the biologically active compounds are unique to this group of plants [1][2][3][4][5]. Liverworts are the only group of plants with characteristic cellular structures, oil bodies, that are organelles surrounded by a single membrane [6,7].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variability of Volatile Components in Calypogeia integristipula

Wawrzyniak,

Guzowska,

Wasiak

et al. 2023

Molecules

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Liverworts contain a large number of biologically active compounds that are synthesised and stored in their oil bodies. However, knowledge about the chemical composition of individual species is still incomplete. The subject of the study was Calypogeia integristipula, a species representing leafy liverworts. Plant material for chemotaxonomic studies was collected from various locations in Poland. The chemical composition was determined in 74 samples collected from the natural environment in 2021 and 2022 in three growing seasons: spring, summer and autumn, and for comparison with samples originating from in vitro culture. The plants were classified as Calypogeia integristipula on the basis of morphological characteristics, oil bodies, and DNA markers. The volatile organic compounds (VOCs) from the biological material were extracted by headspace solid phase microextraction (HS-SPME). The samples were then analysed by gas chromatography–mass spectrometry (GC-MS). A total of 79 compounds were detected, of which 44 compounds were identified. The remaining compounds were described using the MS fragmentation spectrum. Cyclical changes in the composition of compounds associated with the growing season of Calypogeia integristipula were observed. Moreover, samples from in vitro culture and samples taken from the natural environment were shown to differ in the composition of chemical compounds. In terms of quantity, among the volatile compounds, compounds belonging to the sesquiterpene group (46.54–71.19%) and sesqiuterpenoid (8.12–22.11%) dominate. A smaller number of compounds belong to aromatic compounds (2.30–10.96%), monoterpenes (0.01–0.07%), monoterpenoids (0.02–0.33%), and aliphatic hydrocarbons (1.11–6.12%). The dominant compounds in the analysed liverworts were: anastreptene (15.27–31.14%); bicyclogermacrene (6.99–18.09%), 4,5,9,10-dehydro-isolongifolene (2.00–8.72%), palustrol (4.95–9.94%), spathulenol (0.44–5.11%).

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“…The Lejeuneaceae are the largest family of liverworts with about 1200 species in 78 genera (Frey & Stech, 2009, with updates). Several studies have been conducted on the terpenoids and aromatic compounds of Lejeuneaceae (e.g., Asakawa, 1982, 1995Asakawa et al, 1980aAsakawa et al, , 1980bGradstein et al, 1981. These substances, especially terpenoids, often show strong biological activity and may play an important role in the defence of the plants against environmental hazards or predators .…”

Section: Ib General Discussionmentioning

confidence: 99%

“…These substances, especially terpenoids, often show strong biological activity and may play an important role in the defence of the plants against environmental hazards or predators ). Several studies have been conducted on the terpenoids and aromatic compounds of the members of Ptychanthoideae (e.g., Asakawa 1982, 1995, Asakawa et al 1980a, 1980b, Gradstein et al 1981).…”

Section: Chemical Studymentioning

confidence: 99%

Taxonomy and Phylogeny of the Liverwort Genus Thysananthus (Marchantiophyta; Lejeuneaceae)

Sukkharak¹

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Zusammenfassung iv I. Synopsis 1Malaysia and was invited to Göttingen for a PhD study under his guidance. I express my gratitude to him for his supervision, suggestions and many helpful discussions throughout the duration of my thesis. I am very grateful to PD Dr. Michael Stech as supervisor for my molecular work and being my co-referee. I would like to thank Dr. Agnieszka Ludwiczuk for being the co-author for my phytochemical paper and her hospitality upon my visit to her department.

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Chemosystematics of Marchantiophyta

Cited by 3 publications

References 337 publications

Recent origin and diversification accompanied by repeated host shifts of thallus-mining flies (Diptera: Agromyzidae) on liverworts and hornworts

Recent origin and diversification accompanied by repeated host shifts of thallus-mining flies (Diptera: Agromyzidae) on liverworts and hornworts

Seasonal Variability of Volatile Components in Calypogeia integristipula

Taxonomy and Phylogeny of the Liverwort Genus Thysananthus (Marchantiophyta; Lejeuneaceae)

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