Lichens to Biomonitor the Environment

Shukla, Vertika; Upreti, D K; Bajpai, Rajesh

doi:10.1007/978-81-322-1503-5

Cited by 43 publications

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“…The absence of Lobarian and Usnioid communities in Mana indicated the worst condition of air quality in this area. Such kind of indications is also observed by other workers in different areas (Sloof et al, 1988;Pinho et al, 2004;Shukla et al, 2014) (2011) and Rai et al (2012). The species of Dimorphic & Xanthoparmelioid communities are very sensitive to any kind of disturbances caused by trampling & trekking of tourists and demolished from the area suffering from such type of pressure.…”

Section: Resultssupporting

confidence: 74%

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Lichen as Bioindicator for Monitoring Environmental Status in Western Himalaya, India

et al. 2016

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The use of bioindicator communities (lichen) to assess the environmental status of an area is a well-proved strategy to monitor any habitat without any logistic and instrumental facilities. In the present study, 13 bioindicator communities of lichen have been used to assess the environmental status of holy pilgrimage (Badrinath), western Himalaya, India. Three sites (i.e. Badrinath, Mana & pilgrimage route from Bhimpul to Vasudhara) have been comparatively assessed. The results of the study reveals that Badrinath site is less polluted and experiences low degree of anthropogenic disturbances compared to Mana, and pilgrimage route (Bhimpul to Vasudhara). Human settlements, construction of civil works, vehicular emission, and trampling and trekking by tourists are the major threats on these habitats, which ultimately decrease the quality of vegetation and adjacent environment. Controlled vehicular use, promotion of modern way of cooking and managed trekking in these pilgrimage routes could be helpful to combat the decreasing vegetation and environmental quality therein.

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Section: Resultssupporting

confidence: 74%

“…The indications of these communities have already been described by several workers in past (Will-Wolf et al, 2002;Pinho et al, 2004;Srivastava, 2005;Khare et al, 2010;Satya and Upreti, 2011;Zedda et al, 2011;Shukla et al, 2014;Upreti, 2014). Figure 5A).…”

Section: Resultsmentioning

confidence: 60%

Lichen as Bioindicator for Monitoring Environmental Status in Western Himalaya, India

et al. 2016

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“…Lichens are considered sensitive organisms because of their biological features. The absence of protective cuticle or root system results in a high sensitivity to anthropogenic disturbances, such as atmospheric pollutants (Bajpai et al, 2010;Conti and Cecchetti, 2001;Shukla et al, 2014;Szczepaniak and Biziuk, 2003). The loss of lichen diversity constitutes one of the main markers of atmospheric pollution on the biosphere, as revealed since the first observations in context, a first biomonitoring scale was developed in England and Wales by Hawksworth and Rose (1970), associating common lichen species for different atmospheric SO 2 concentrations.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas

Agnan

Probst

Séjalon‐Delmas

2017

Ecological Indicators

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To cite this version:Y. Agnan, A. Probst, N. Séjalon-Delmas. Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas. Ecological Indicators, Elsevier, 2017Elsevier, , 72, pp.99-110. <10.1016Elsevier, /j.ecolind.2016 b s t r a c tIn order to evaluate the metal resistance or sensitivity of lichen species and improve the bioindication scales, we studied lichens collected in eight plottings in French and Swiss remote forest areas. A total of 92 corticolous species was sampled, grouped in 54 lichen genera and an alga. Various ecological variables were calculated to characterize the environmental quality -including lichen diversity, lichen abundance, and Shannon index -, as well as lichen communities. Average ecological features were estimated for each study site and each of the following variables -light, temperature, continentality, humidity, substrate pH, and eutrophication -and they corresponded to lichen communities. Based on lichen frequencies, we calculated the index of atmospheric purity (IAP) and lichen diversity value (LDV). These two bioindication indices were closely related to lichen diversity and lichen abundance, respectively, due to their calculation formula. It appeared that LDV, which measures lichen abundance, was a better indicator of metal pollution than IAP. Coupling lichen diversity and metal bioaccumulation in a canonical correspondence analysis, we evaluated the resistance/sensitivity to atmospheric metal pollution for the 43 most frequent lichen species. After validation by eliminating possible influences of acid and nitrogen pollutions, we proposed a new scale to distinguish sensitive species (such as Physconia distorta, Pertusaria coccodes, and Ramalina farinacea) from resistant species (such as Lecanactis subabietina, Pertusaria leioplaca, and Pertusaria albescens) to metal pollution, adapted to such forested environment.

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“…Талломы разных видов лишайников содержат наборы специфических веществ -так называемых вторичных метаболитов. Метаболическая, физиологическая и экологическая роли этих веществ в жизни лишайников и сообществ с их участием в насто-ящее время активно изучается во всем мире (Shukla et al, 2013. Вторичные метаболиты способны подавлять рост соседствующих с ними бактерий, грибов и даже проростков высших растений, что позволяет крайне медленно растущим лишайни-кам если не конкурировать в фитоценозе, то, по крайней мере, обеспечивать для себя неко-торое жизненное пространство (Halama, Van Haluwin, 2004;Shawuti, Abbas, 2007;Karagöz et al, 2009;Favero-Longo, 2010).…”

Section: Introductionunclassified

Lichen extracts influence on the Scots pine seeds growth

Khramchankova¹

2018

Bulletin BD RBS

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Lichen extracts influence on the Scots pine seeds growth УО «Гомельский государственный университет имени Ф. Скорины» 246019, Республика Беларусь, г. Гомель, ул. Советская, д. 104. Тел.: + 375 (2322) 57-89-05, e-mail: hramchenkova@gsu.by Аннотация. Установлено ингибирующее влияние ацетоновых экстрактов из лишайников Hypogymnia physodes, Evernia prunastri, Ramalina pollinaria, Xanthoria parietina и Cladonia arbuscula на прорастание семян и первичный рост проростков сосны обыкновенной. Экстракты располагали на поверхности ложа прорастания семян и под ним. При непосредственном контакте семян сосны обыкновенной с экстрактами из лишайников энергия прорастания снижалась на 6,4÷31,9%; всхожесть -на 8,2÷26,5%. В присутствии экстрактов из Evernia prunastri, Ramalina pollinaria и Xanthoria parietina проростки сосны отставали в росте на 15÷45%; корни были короче на 32,7÷54,9%; гипокотили -на 14,7±1,12%. Экстракты из Cladonia arbuscula снижали энергию прорас-тания семян сосны на 10,6%; всхожесть -на 24,3%; не влияли на длину проростка; способствовали небольшой задержке роста корня и удлинению гипокотиля. При опосредованном контакте семян с экстрактами из лишай-ников энергия прорастания семян снижалась до 10,7 %; всхожесть не изменялась. В присутствии экстрактов из Hypogymnia physodes, Evernia prunastri и Ramalina pollinaria проростки отставали в росте на 26,4÷50,4%; корни -на 35,3÷63,2%; гипокотили -на 17,7÷28,1%. Экстракты из Xanthoria parietina и Cladonia arbuscula не влияли на величину энергии прорастания семян и их всхожесть; слабо влияли на изменение длины проростка и корня; способствовали задержке роста гипокотиля на 20,4÷23,1%.Ключевые слова: лишайники, Hypogymnia physodes, Evernia prunastri, Ramalina pollinaria, Xanthoria parietina, Cladonia arbuscula, ацетоновые экстракты, Pinus sylvestris, семена, энергия прорастания, всхожесть, длина про-ростка, гипокотиль, корень.Abstract. The inhibitory effect of acetone extracts from Hypogymnia physodes, Evernia prunastri, Ramalina pollinaria, Xanthoria parietina and Cladonia arbuscula lichens on the germination of seeds and the primary growth of Scots pine sprouts was obtained. Extracts were on the surface of the substrate of seed germination and under i t. With direct contact of Scots pine seeds with extracts from lichens, germination energy decreased by 6 ,4 to 31,9%; germination -by 8,2÷26,5%. In the presence of extracts from Evernia prunastri, Ramalina pollinaria and Xanthoria parietina sprouts of pine lagged behind in growth by 15÷45%; roots were shorter by 32 ,7÷54,9%; hypocotyls -by 14,7±1,12%. Extracts from Cladonia arbuscula reduced the germination energy of pine seeds by 10,6%; germination -by 24,3%; did not affect the length of the seedling; contributed to a slight delay in root growth and lengthening of the hypocotyl. With the indirect contact of pine seeds with lichen extracts, the germination energy of seeds decreased to 10,7%; the germination did not change. In the presence of extracts from Hypogymnia physodes, Evernia prunastri and Ramalina pollinaria sp...

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Lichens to Biomonitor the Environment

Cited by 43 publications

References 0 publications

Lichen as Bioindicator for Monitoring Environmental Status in Western Himalaya, India

Lichen as Bioindicator for Monitoring Environmental Status in Western Himalaya, India

Evaluation of lichen species resistance to atmospheric metal pollution by coupling diversity and bioaccumulation approaches: A new bioindication scale for French forested areas

Lichen extracts influence on the Scots pine seeds growth

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