Page 3581 of 3650 Results 35801 - 35810 of 36499
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
35801
Bačkor M., Goga M., Ručová D., Urminská D., Bačkorová M. & Klejdus B. (2023): Allelopathic effects of three lichen secondary metabolites on cultures of aposymbiotically grown lichen photobionts and free-living alga Scenedesmus quadricauda - South African Journal of Botany, 162: 688–693

In the present work, we studied the influence of lichen secondary metabolites (evernic acid, orcinol, usnic acid) on selected species of algae: Trebouxia erici, photobiont of lichen Cladonia cristatella producing typical lichen secondary metabolites, Coccomyxa solorinae-saccatae, photobiont of lichen Solorina saccata which does not produce typical secondary metabolites of lichens, and free-living alga Scenedesmus quadricauda. For the determination of the cytotoxic effects of these compounds, algae … URL EndNote PDF Read more... 

35802
Copeland S.M., Condon L.A., Rosentreter R., Miller J.E.D. & Kahn-Abrams M. (2023): Biocrusts Indicators of Livestock Grazing Effects on Soil Stability in Sagebrush Steppe: A Case Study from a Long-Term Experiment in the Northern Great Basin - Rangeland Ecology and Management, 91: 82–86

Biocrusts are sensitive to changes in livestock grazing intensity in arid rangelands and may be useful indicators of ecosystem functions, particularly soil properties like soil stability, which may suggest the potential for soil erosion. We compared biocrust community composition and surface soil stability in a big sagebrush (Artemisia tridentata) steppe rangeland in the northwestern Great Basin in several paired sites, with or without long-term cattle grazing exclusion, and similar soils (mostly … URL EndNote PDF Read more... 

35803
Su T.-H., Zhou C.-Y., Sun W., Jia T., Hu T., Li Z.-F., Pu X.-Y., Lu Z.-Y. & Li S. (2023): Greater differentiation in nitrogen sources is essential for co-occurring epiphytes under low-nitrogen canopy conditions - Environmental and Experimental Botany, 215: 105509 [12 p.]

Acquiring enough nitrogen (N) to support their life processes in nutrient-poor canopies is a crucial challenge for epiphytes. When different epiphytes coexist in the same environment, they may use different strategies to acquire N. In this study, we employed stable isotope analysis to explore N acquisition and differentiation among co-occurring epiphytes in a subtropical forest in Southwest China. We found that functional group was the most important factor influencing N and 15N natural abundance … URL EndNote PDF Read more... 

35804
Randriamananjara M.A., Fenton N.J. & DesRochers A. (2023): How does understory vegetation diversity and composition differ between monocultures and mixed plantations of hybrid poplar and spruce? - Forest Ecology and Management, 549: 121434 [14 p.]

Although monocultures are important for timber production, they are often associated with lower biological diversity than mixtures. Thus, mixed plantations have been suggested as a way to enhance biodiversity because of their inherent compositional diversity. However, the effects of monocultures versus mixtures on understory diversity and composition can vary in different ecosystems. The objective of this study was to assess how monocultures and mixed plantations influence understory vegetation diversity … URL EndNote PDF Read more... 

35805
Medison R.G., Jiang J., Medison M.B., Tan L.-T., Kayange C.D.M., Sun Z. & Zhou Y. (2023): Evaluating the potential of Bacillus licheniformis YZCUO202005 isolated from lichens in maize growth promotion and biocontrol - Heliyon, 9(10): e20204 [14 p.]

Lichens exist in an organismal organization of mycobiont, photobiont, and non-photoautotrophic bacteria. These organisms contribute to the growth of lichens even in poor nutrition substrates. However, studies on the isolation and application of non-photoautotrophic bacteria in plant growth and biocontrol are scanty. Therefore, a study was conducted to isolate and evaluate the potential of non-photoautotrophic bacteria from lichen tissues in maize plant growth promotion and biocontrol of plant pathogens … URL EndNote PDF Read more... 

35806
Qiu D., Bowker M.A., Xiao B., Zhao Y., Zhou X. & Li X. (2023): Mapping biocrust distribution in China's drylands under changing climate - Science of The Total Environment, 905: 167211 [12 p.]

Biological soil crusts (biocrusts) are widely distributed in global drylands and have multiple significant roles in regulating dryland soil and ecosystem multifunctionality. However, maps of their distribution over large spatial scales are uncommon and sometimes unreliable, because our current remote sensing technology is unable to efficiently discriminate between biocrusts and vascular plants or even bare soil across different ecosystem and soil types. The lack of biocrust spatial data may limit … URL EndNote PDF Read more... 

35807
Žatková L., Milovský R., Bechtel A., Starek D., Pipík R. & Šurka J. (2023): n-Alkane and terpenoid fingerprints of modern biomass producers unveil floral changes recorded in postglacial alpine lake sediments, Tatra Mountains, Slovakia - Organic Geochemistry, 184: 104672 [16 p.]

Highlights: • Lipid fingerprinting of modern biota helps reconstructing past environments. • Dry climate in YD recorded by Sphagnum retreat. • Pluvial episode suggested around 5,000 B.P. • Upper limit of Pinus mugo zone never passed over 1880 m.a.s.l. in Tatra Mts. • Lithophytic lichen biomass deposits with millenial delay. Sediments of two alpine lakes in Tatra Mts., Slovakia, record the environmental history of their catchments from deglaciation in Late Glacial warming … URL EndNote Read more... 

35808
Cicardi M., Bernasconi D., Martire L., Pastero L., Caneva G. & Favero-Longo S.E. (2024): Centimetric circular areas uncolonized by microbial biofilms (CUMBs) on marble surfaces and insights on a lichen-related origin - International Biodeterioration and Biodegradation, 186: 105681 [13 p.]

This study investigated the poorly known phenomenon of Centimetric circular areas Uncolonized by Microbial Biofilms (CUMBs) which is frequently observed on natural and heritage stone surfaces displaying widespread lithobiontic colonization. In order to unveil a possible relationship with past lichen colonization, analyses were carried out on the distribution, morphometry, physical and mineralogical properties, and microscopic features of CUMBs on the marble surfaces of a balustrade in the Garden … URL EndNote Read more... 

35809
Borah D., Mishra V., Debnath R., Ghosh K., Gogoi D., Rout J., Pandey P., Ghosh N.N. & Bhattacharjee C.R. (2023): Facile green synthesis of highly stable, water dispersible carbohydrate conjugated Ag, Au and Ag-Au biocompatible nanoparticles: Catalytic and antimicrobial activity - Materials Today Communications, 37: 107096 [17 p.]

Highly stable carbohydrate conjugated silver, gold and bimetallic silver-gold alloy biocompatible and nearly monodisperse nanoparticles (NPs) have been synthesized through bio-reduction of aqueous solution of corresponding metal salt precursors mediated by aqueous extracts of a high altitude lichen, Lobaria retigera. The biomolecule accountable for the reduction, stabilization and capping of the metal nanoparticles is identified to be carbohydrates. The as-synthesized carbohydrate conjugated nanoparticles … URL EndNote Read more... 

35810
Hernández J.M., García R.A., Filippini E.R., Estrabou C., Cañas M.S. & Rodríguez J.M. (2023): Saxicolous lichen communities in three basins associated with mining activity in northwestern Argentina - Journal of Arid Land, 15(8): 989–1005

Mining activity affects the vegetation and soils of the ecosystems. However, the effects of mining activity on saxicolous lichen communities are less concerned. Thus, the aim of this study was to characterize saxicolous lichen communities in three basins (Vis-Vis River basin, Poteros River basin, and Capillitas River basin) surrounding metalliferous mining projects of different types of operation and at different stages of exploitation. A large-scale mine (Bajo de la Alumbrera) with more than … URL EndNote PDF Read more... 

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