Volatile constituents in mosses (Musci)

Saritas, Yücel; Sonwa, Mesmin Mekem; Iznaguen, Hassan; König, Wilfried Α.; Muhle, Hermann; Mues, Rüdiger

doi:10.1016/s0031-9422(01)00069-3

Cited by 80 publications

(51 citation statements)

References 25 publications

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“…In seed plants, TPSs are responsible for the production of a diversity of terpenoids important for ecological interactions, especially as defenses against herbivores and pathogens. Some nonseed plants, such as liverworts (17) and mosses (18), also produce a vast diversity of terpenoids. However, little is known about how such terpenoids are synthesized or about their biological functions.…”

Section: Mtpsl Genes Are Patchily Distributed In Green Plants: Evolutmentioning

confidence: 99%

Microbial-type terpene synthase genes occur widely in nonseed land plants, but not in seed plants

Jia

Köllner

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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The vast abundance of terpene natural products in nature is due to enzymes known as terpene synthases (TPSs) that convert acyclic prenyl diphosphate precursors into a multitude of cyclic and acyclic carbon skeletons. Yet the evolution of TPSs is not well understood at higher levels of classification. Microbial TPSs from bacteria and fungi are only distantly related to typical plant TPSs, whereas genes similar to microbial TPS genes have been recently identified in the lycophyte Selaginella moellendorffii. The goal of this study was to investigate the distribution, evolution, and biochemical functions of microbial terpene synthase-like (MTPSL) genes in other plants. By analyzing the transcriptomes of 1,103 plant species ranging from green algae to flowering plants, putative MTPSL genes were identified predominantly from nonseed plants, including liverworts, mosses, hornworts, lycophytes, and monilophytes. Directed searching for MTPSL genes in the sequenced genomes of a wide range of seed plants confirmed their general absence in this group. Among themselves, MTPSL proteins from nonseed plants form four major groups, with two of these more closely related to bacterial TPSs and the other two to fungal TPSs. Two of the four groups contain a canonical aspartate-rich "DDxxD" motif. The third group has a "DDxxxD" motif, and the fourth group has only the first two "DD" conserved in this motif. Upon heterologous expression, representative members from each of the four groups displayed diverse catalytic functions as monoterpene and sesquiterpene synthases, suggesting these are important for terpene formation in nonseed plants.terpene synthase | specialized metabolism | nonseed plant | gene evolution T erpenoids are the largest class of land plant secondary metabolites, but they are not uniformly distributed in the plant kingdom (1). Many seed plants (angiosperms and gymnosperms) produce terpenoids of diverse types in large quantities. However, among nonseed plants, only liverworts are known as copious producers of terpenoids (2). Terpenoids have diverse biological and ecological functions with many serving as chemical defenses against herbivores and pathogens (3, 4). Some have lineagespecific functions, such as the volatile terpenoids in flowers that are involved in attracting pollinators (5). Characterizing the biosynthesis of terpenoids in all plant lineages is therefore an important avenue to understanding their roles in the adaptation of various lineages of terrestrial plants.Terpene synthases (TPSs) are pivotal enzymes for terpenoid biosynthesis, forming a distinctive superfamily based on both sequence identity and structure classification. However, within this group, typical plant and microbial (bacterial and fungal) TPSs share very low sequence similarity and are therefore only distantly related (6). The typical plant TPSs form subfamilies with individual subfamilies generally associated with specific biochemical functions, such as monoterpene, sesquiterpene, or diterpene biosynthesis (7,8). Monoterpene synthases a...

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Section: Mtpsl Genes Are Patchily Distributed In Green Plants: Evolutmentioning

confidence: 99%

Microbial-type terpene synthase genes occur widely in nonseed land plants, but not in seed plants

Jia

Köllner

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

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“…[2][3][4] On the other hand, it is thought that mosses contain no oil bodies, and there are only a few reports of the chemical constituents of mosses. [5][6][7] Hypnum plumaeforme (Hypnaceae) is a species of moss that is widely distributed, from Hokkaido to the southwest islands of Japan, and forms large colonies on dry ground and rocks. 8) H. plumaeforme has oil droplets in the leaf cell, similaly to liverworts (Fig.…”

mentioning

confidence: 99%

Momilactone A and B as Allelochemicals from MossHypnum plumaeforme: First Occurrence in Bryophytes

Nozaki

Hayashi

Nishimura

et al. 2007

Bioscience, Biotechnology, and Biochemistry

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“…B. S. G. belongs to the family of Neckeraceae. Little work has been performed on the chemical constituents of this species previously [4]. As a result of our continuing search for antifungal agents from bryophytes [5], the Et 2 O extract of H. trichomanoides, collected from Jilin Province in the Mount Chang-bai, Northeast China, was found to exhibit growth-inhibiting activity against the fungus Candida albicans, and from which we isolated a novel p-terphenyl derivative, trichomanin (1), and five known compounds (2 ± 6).…”

mentioning

confidence: 99%

Antifungal Constituents from the Chinese MossHomalia trichomanoides

Wang

Lou

2005

C&B

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Bioautographic assay on TLC plates was adopted to guide the fractionation of the Et2O extract of Homalia trichomanoides (Hedw.) B. S. G., which led to the isolation of the novel p-terphenyl derivative trichomanin (= 4,4''-dihydroxy-1,1':4',1''-terphenyl-2',3',5',6'-tetrayl tetrakis(phenylacetate); 1), together with five known compounds: 3alpha-methoxyserrat-14-en-21beta-ol (2), 3beta-methoxyserrat-14-en-21beta-ol (3), 3beta-methoxyserrat-14-en-21-one (4), atranorin (5), and methyl 2,4-dihydroxy-3,6-dimethylbenzoate (6). Their structures were determined on the basis of spectral data (1D- and 2D-NMR, MS), X-ray crystallographic analysis, and chemical transformation. Compounds 3, 5, and 6 exhibited antifungal activity against Candida albicans, with minimum inhibitory doses (MID) of 2.0, 2.0, and 0.6 microg, respectively.

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Volatile constituents in mosses (Musci)

Cited by 80 publications

References 25 publications

Microbial-type terpene synthase genes occur widely in nonseed land plants, but not in seed plants

Microbial-type terpene synthase genes occur widely in nonseed land plants, but not in seed plants

Momilactone A and B as Allelochemicals from MossHypnum plumaeforme: First Occurrence in Bryophytes

Antifungal Constituents from the Chinese MossHomalia trichomanoides

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