Bryophyte Invasion on Famous Archaeological Site of Ahom Dynasty ‘Talatal Ghar’ of Sibsagar, Assam (India)

Verma, Praveen Kumar; Kumar, Vineet; Kaushik, Prashant; Yadav, Alok

doi:10.1007/s40011-013-0198-2

Cited by 6 publications

(12 citation statements)

References 9 publications

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“…were reported from the archaeological site of Chellah, Morocco (Elharech et al 2017). As per the earlier studies, mosses were dominant followed by liverworts on the archaeological sites or monuments(Verma et al 2014;Elharech et al 2017). Moreover, three species of mosses (Tortula muralis Hedw., Didymodon vinealis (Brid.)…”

supporting

confidence: 66%

“…and Fissidens bryoides Hedw. of the order Dicranales were reported earlier from the monuments of Talatal Ghar, Assam and the archaeological site of Chellah, Morocco, respectively (Verma et al . 2014; Elharech et al .…”

Section: Discussionmentioning

confidence: 52%

“…Verma et al . (2014) also reported members of Marchantiales such as Plagiochasma , Marchantia L. and Asterella on the monuments of Talatal Ghar, Assam. In the current study, Lejeunea aloba Sande Lac.…”

Section: Discussionmentioning

confidence: 95%

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Bryophyte Colonization on the Monuments of Champaner Pavagadh – UNESCO World Heritage Site and Its Association with Geological Substrates

Mehta,

Shah

2023

Cryptogamie, Bryologie

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Bryophyte colonization on selected monuments of Champaner Pavagadh UNESCO World Heritage site was investigated. A total of seventeen bryophytes including nine liverworts, six mosses and two hornworts, causing degradation of the monuments, were recorded. The geological substrate was studied by a thin section of substratum and Powder X-Ray Diffraction analysis. Microscopic images of the thin section of geological substrate of the samples showed the presence of quartz, ferruginous materials, calcareous materials, orthoclase and plagioclase feldspar minerals. The XRD analysis spectra revealed the presence of different minerals such as aluminosilicate, calcite, muscovite, hematite, magnetite, orthoclase and plagioclase feldspar. The geological investigation showed that selected monuments are composed of the most calcareous materials. Hence, calcium uptake by Asterella wallichiana (Lehm. & Lindenb.) Grolle and Hyophila involuta (Hook.) A.Jaeger from the substratum was studied using a flame photometer. Maximum calcium uptake (i.e., 52 µg/mg) was obtained for plant samples of Asterella wallichiana compared to Hyophila involuta (i.e., 36 µg/mg). Bryophyte colonization on monuments was initiated by humus formation, followed by the protonema stage, mature gametophyte and rhizoids penetration into crevices as well as porous surfaces, forming cracks and degrading structures. This deterioration mechanism due to bryophyte colonization is explained by pictorial representation. RÉSUMÉ Colonisation de bryophytes sur les monuments de Champaner Pavagadh -site du patrimoine mondial de l'UNESCO et son association avec les substrats géologiques.La colonisation des bryophytes sur des monuments sélectionnés du site de Champaner Pavagadh (classé au patrimoine mondial de l'UNESCO) a été étudiée. Au total, dix-sept bryophytes, dont neuf hépatiques, six mousses, et deux anthocérotes, causant la dégradation des monuments, ont été recensées. Le substrat géologique a été étudié par une coupe fine du substrat et une analyse par diffraction des rayons X sur poudre. Les images microscopiques de la section fine du substrat géologique des échantillons ont montré la présence de quartz, de matériaux ferrugineux, de matériaux calcaires, de minéraux de feldspath orthoclase et plagioclase. Les spectres d'analyse XRD ont révélé la présence de différents minéraux tels que l'aluminosilicate, la calcite, la muscovite, l'hématite, la magnétite, les feldspath orthoclase et plagioclase. L'étude géologique montre clairement que les monuments sélectionnés présentent les matériaux les plus calcaires. Par conséquent, l'absorption de calcium par Asterella wallichiana (Lehm. & Lindenb.) Grolle et Hyophila involuta (Hook.) A.Jaeger à partir du substrat a été étudiée à l'aide d'un photomètre à flamme. L'absorption maximale de calcium (52 µg/mg) a été

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confidence: 66%

Section: Discussionmentioning

confidence: 52%

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Bryophyte Colonization on the Monuments of Champaner Pavagadh – UNESCO World Heritage Site and Its Association with Geological Substrates

Mehta,

Shah

2023

Cryptogamie, Bryologie

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“…Lichens' tendency to deteriorate is primarily caused by the partner of lichen mycobiont, which is in direct contact with the substrate (Verma et al, 2014). The fungus forms a thallus or lichenized stroma in all lichens, which may include special secondary metabolites.…”

Section: Introductionmentioning

confidence: 99%

A Lichens-Mediated Mechanism for Environmental Biodeterioration

Thakur

Shrikhandia²,

Kumar

2022

Air, Soil and Water Research

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As mediators in soil formation, lichens play an essential role in the physical and biological formation of the natural environment. A recent study showed that they are capable of biodegrading stone substrates in a little amount of time, despite being excluded in a geological setting. Many species, mainly those able to produce an oxalate at the thallus-substratum interface, can alter the surface, affecting it chemically. The oxalate remains a noticeable increase even after the lichen has faded, and it makes a major contribution to the structure and composition of the thallus itself. These severe oxalate deposits on historical sites have been alternatively attributed to the earlier as the consequence of air pollutants, prior mechanical/chemical renovation treatments, as well as environmental deterioration. Lichen growth on building materials and biodegradation are frequently based on environmental variables. The biogeophysical and biogeochemical weathering of the substrate by the lichens is the mechanism underlying biodegradation. For stone surfaces, lichens can endeavor bio protection by acting as a barrier against weathering, holding humidity, improving permeability, reducing heat stress and erosion, and absorbing contaminants. Lichen’s significance as a biodeteriorant, its colonization and impact on monuments, as well as bioprotection, are all discussed in the current review.

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“…and Splachnobryum synoicum Robins are endemic to this area. He revealed that the order Hypnobryales is abundant in the study area which consists of 49 species and covers 62.23% of the total species recorded Verma et al 2014,. survey on Liverwort and Hornwort flora of Hoollongapar Gibbon Sanctuary,…”

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confidence: 99%

Diversity of Bryophytes in India - Special Reference to North-East India

Borkataky¹,

Nasrin²,

Bora³

2022

EEC

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Bryophytes, the first non-vascular embryophytes, are an interesting component of phytodiversity. North-East India can be considered as a hub of bryo-floristic species due to its suitable climatic condition butecological research on bryo-flora is in infancy. Therefore, to assess the diversity and distribution ofbryophytes, we conducted a literature review. From our study, about 23000 species of bryophytes arerecorded in world and nearly 2489 taxa are noted from India among which 340 species are endemic. InNorth-Eastern India, about 1786 of bryophytes are abundantly distributed and most of the endemic specieshave been recorded from Sikkim. Diversity of bryophytes acts as one of the important ecological indicators.A new vision of research has been provided by this review paper on the diversity of bryophytes andconservation of endemic species for future aspects.

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Bryophyte Invasion on Famous Archaeological Site of Ahom Dynasty ‘Talatal Ghar’ of Sibsagar, Assam (India)

Cited by 6 publications

References 9 publications

Bryophyte Colonization on the Monuments of Champaner Pavagadh – UNESCO World Heritage Site and Its Association with Geological Substrates

Bryophyte Colonization on the Monuments of Champaner Pavagadh – UNESCO World Heritage Site and Its Association with Geological Substrates

A Lichens-Mediated Mechanism for Environmental Biodeterioration

Diversity of Bryophytes in India - Special Reference to North-East India

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