Gas chromatography-mass spectrometry (GC–MS) profiling of aqueous methanol fraction of Plagiochasma appendiculatum Lehm. & Lindenb. and Sphagnum fimbriatum Wilson for probable antiviral potential

Abstract

The bryophytes consist of liverworts, mosses, and hornworts, among which the liverworts are quite different in having cellular oil bodies and contain numerous terpenoids, acetogenins, quinones, phenylpropanoids, flavonoids, etc. These metabolites exhibit interesting biological activity such as allergenic response, insecticide, cytotoxic, neurotrophic, antimicrobial, and anti-HIV actions, etc. Though several bioactive compounds have been isolated in many liverworts, yet most of the liverworts have been unexplored till date regarding their phytochemistry. The ability of liverworts to generate a wide range of important phytochemicals makes them a hoard of bioactive compounds. In the past, a few species of bryophytes have been evaluated against a few viruses and interesting results were obtained that showed their role as an immunity enhancer against viral infection. The phytoconstituents found in liverworts and mosses can be useful to increase human immunity against a variety of viruses, including SARS-CoV-2. Keeping this in view, one of the most developed and robust metabolomics technologies, Gas chromatography-mass spectroscopy (GC–MS) was used to estimate the various phytoconstituents found in a commonly growing thalloid liverwort, Plagiochasma appendiculatum, and moss Sphagnum fimbriatum . The obtained profiles were appraised for their bioactive potential and probable role as antiviral agents.

Analysis of the antioxidant activity and caffeine content of Barbula indica (Hook.) Spreng. (Bryophyta; Pottiaceae)

“…Most bryologists in India have so far concentrated studies on morpho-taxonomy and diversification issues (15,16,17). As a result, currently there is a lacuna in research relating to phytochemical constituents of bryophytes in India.…”

Recent Advances in the Phytochemistry of Bryophytes: Distribution, Structures and Biological Activity of Bibenzyl and Bisbibenzyl Compounds

“…Bisbibenzyl compounds show a number of bioactivities like antibacterial [ 94 ], antiviral [ 47 , 95 , 96 ], antifungal [ 94 , 97 , 98 ], cytotoxic [ 18 , 23 , 42 , 99 ], antioxidant [ 18 , 19 , 100 ], neuroprotective [ 81 ], antivenomous [ 101 ], HAT treatment [ 102 ], muscle relaxing [ 103 ] and others. Bibenzyl and bisbibenzyl compounds involved in diverse types of bioactivities, as established through in vitro, in vivo and in silico studies, are the main contents of the discussion below.…”

“…Two acyclic bisbibenzyls were obtained from M. paleacea subsp. diptera, i.e., paleatin A and paleatin B (95)(96), where rings A and C, and B and D, are connected through oxygen bonds. Paleatin B (96) differs from A due toan additional methyl group [21].…”