Stress, senescence, and specialized metabolites in bryophytes

Kulshrestha, Samarth; Jibran, Rubina; Klink, John W. van; Zhou, Yufan; Brummell, David A.; Albert, Nick W.; Schwinn, Kathy E.; Chagné, David; Landi, Marco; Bowman, John L.; Davies, Kevin

doi:10.1093/jxb/erac085

Cited by 19 publications

(17 citation statements)

References 140 publications

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“…Populus leaves turn yellow in autumn, a consequence according to chlorophyll degradation during senescence in response to environmental change 29 , 30 . The present study showed that concentrations of phenolic acids in leaves were more highly elevated at the beginning of the spring period and decomposed at the end of the active season until leaves maturity 31 . 32 found that willow trees’ degraded structure and growth rate turn down on senescence leaves in relation to low leaf water potential.…”

Section: Discussionmentioning

confidence: 47%

Effect of Populus nigra spring and autumn leaves extract on Capsicum annuum infected with pepper mild mottle virus

Gharib

Mandour

2022

Sci Rep

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Capsicum annuum is one of the main vegetable crops for the local market and exportation in Egypt. In this concern, pepper mild mottle virus (PMMoV) infection caused a significant decrease in Capsicum sp. leading to large economic losses. An isolate of PMMoV was obtained from naturally infected pepper plants, exhibiting different patterns of mottling, leaf distortion, yellowing, and stunting of leaves. The virus was identified. The molecular detection of PMMoV was done using RT-PCR with specific primers designed for coat protein genes. An RT-PCR product (474) bp of the coat protein gene of (PMMoV) was cloned. The target of the investigation was the effect of spring and autumn ethanol extracts of Populus nigra leaves on C. annuum seedling growth and infected C. annuum with (PMMoV) under greenhouse conditions. The experimental data showed that treated spring leaf extract of P. nigra enhanced infected C. annuum seedling growth parameters and fruit quality compared to uninfected seedlings. P. nigra spring leaf extract containing some allo-chemicals had a negative effect on uninfected seedlings. P. nigra autumn leaf extract significantly improved the growth and fruit quality of infected C. annuum seedlings compared to the control.

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Section: Discussionmentioning

confidence: 47%

Effect of Populus nigra spring and autumn leaves extract on Capsicum annuum infected with pepper mild mottle virus

Gharib

Mandour

2022

Sci Rep

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“…Each color represents the pathway present in each bryophyte group. PAL, phenylalanine ammonia-lyase; C4H, cinnamate 4-hydroxylase; 4CL, 4-coumarate:CoA ligase; CHS, chalcone synthase; CHI, chalcone isomerase; CHIL, chalcone isomerase-like; F3H, flavanone 3-hydroxylase; DFR, dihydroflavonol 4-reductase; FNR, flavanone reductase; IFS, isoflavone synthase; HID, 2-hydroxyisoflavanone dehydratase; ANS, anthocyanidin synthase; PPO, polyphenol oxidase (AUS/AS, aureusidin/aurone synthase); FNS, flavone synthase; FLS, flavonol synthase (Adapted from Davies et al 2020; Demehin et al 2022; Kulshrestha et al 2022; Wang et al 2005; Yonekura-Sakakibara et al 2019). Online pdf in color.…”

Section: Resultsmentioning

confidence: 99%

A chemistry overview of the beautiful miniature forest known as mosses

2023

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The bryophytes are the second largest group of land plants and are represented by three lineages: Marchantyophyta (liverworts), Anthocerotophyta (hornworts), and Bryophyta (mosses). They occupy a wide variety of habitats, from deserts to Antarctica, and exercise great ecological importance. These facts and their wide use in traditional medicine raise the question of what is known about moss chemistry. This paper gathered studies from the last 52 years about the compounds identified in mosses, aiming to address the following questions: Are mosses chemically under-studied? How many families, genera, and species of mosses have been chemically studied? Which continent and countries have been responsible for the majority of these studies? A literature search was performed in major scientific databases, using a combination of keywords. A total of 199 papers were compiled, of which 45% were published during the last decade. Only a small percentage of moss species has been studied, mostly from Europe and Asia. Dicranales and Hypnales are the most studied orders. In general, fatty acids and flavonoids are the most commonly reported classes of compounds. Biflavonoids and triflavonoids are detected mainly in derived clades of mosses, while coumarins are most reported for basal groups. Akthough only a small percentage of moss species has been chemically studied, most of these studies were published in the last decade—there has been a 135% increase in the number of reported compounds in the last 13 years. The emergence of new equipment, which can produce high-resolution spectra with small amounts of sample, combined with bioinformatics tools, has undoubtedly contributed to the increase of chemical investigation of mosses. Also, advances in the identification and phylogenetics of moss groups are contributing to a better understanding of them generally, which should lead also to increased study of moss chemistry.

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“…These three lineages form a unique part of the vegetation. They are small-sized, structurally simple diversified plants able to adapt to most ecosystems on Earth [ 1 , 2 ]. Bryophytes and tracheophytes (non-vascular and vascular plants, respectively) derive from an ancestral land plant and diverged during the Cambrian, some 500 million years ago [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Discovery and Anticancer Activity of the Plagiochilins from the Liverwort Genus Plagiochila

Bailly

2023

Life

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The present analysis retraces the discovery of plagiochilins A-to-W, a series of seco-aromadendrane-type sesquiterpenes isolated from diverse leafy liverworts of the genus Plagiochila. Between 1978, with the first isolation of the leader product plagiochilin A from P. yokogurensis, and 2005, with the characterization of plagiochilin X from P. asplenioides, a set of 24 plagiochilins and several derivatives (plagiochilide, plagiochilal A-B) has been isolated and characterized. Analogue compounds recently described are also evoked, such as the plagiochianins and plagicosins. All these compounds have been little studied from a pharmacological viewpoint. However, plagiochilins A and C have revealed marked antiproliferative activities against cultured cancer cells. Plagiochilin A functions as an inhibitor of the termination phase of cytokinesis: the membrane abscission stage. This unique, innovative mechanism of action, coupled with its marked anticancer action, notably against prostate cancer cells, make plagiochilin A an interesting lead molecule for the development of novel anticancer agents. There are known options to increase its potency, as deduced from structure–activity relationships. The analysis shed light on this family of bryophyte species and the little-known group of bioactive terpenoid plagiochilins. Plagiochilin A and derivatives shall be further exploited for the design of novel anticancer targeting the cytokinesis pathway.

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Stress, senescence, and specialized metabolites in bryophytes

Cited by 19 publications

References 140 publications

Effect of Populus nigra spring and autumn leaves extract on Capsicum annuum infected with pepper mild mottle virus

Effect of Populus nigra spring and autumn leaves extract on Capsicum annuum infected with pepper mild mottle virus

A chemistry overview of the beautiful miniature forest known as mosses

Discovery and Anticancer Activity of the Plagiochilins from the Liverwort Genus Plagiochila

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