Page 3546 of 3638 Results 35451 - 35460 of 36379
Id/Author/Year/TitleOrder by:  Year  Id  Author  Title
35451
Rom J., Haas F., Heckmann T., Dremel F., Fleischer F., Altmann M., Stark M. & Becht M. (2023): Establishing a record of extreme debris flow events in a high Alpine catchment since the end of the Little Ice Age using lichenometric dating - Geografiska Annaler: Series A, Physical Geography, 105(1): 47–63

Establishing a record of large debris flow events in high Alpine areas prior to the availability of high resolution remote sensing data can be very challenging. In this study, we investigate the debris flow activity in two tributary valleys of the Horlachtal catchment in Tyrol, Austria between the end of the Little Ice Age at about 1850 and the first available area wide aerial images from 1947. To accomplish this, we calculated a local lichenometric calibration curve using the long axis diameters … URL EndNote PDF Read more... 

35452
Hoffman J.R., Karol K.G., Ohmura Y., Pogoda C.S., Keepers K.G., McMullin R.T. & Lendemer J.C. (2023): Mitochondrial genomes in the iconic reindeer lichens: Architecture, variation, and synteny across multiple evolutionary scales - Mycologia, 115(2): 187–205

Variation in mitochondrial genome composition across intraspecific, interspecific, and higher taxonomic scales has been little studied in lichen obligate symbioses. Cladonia is one of the most diverse and ecologically important lichen genera, with over 500 species representing an array of unique morphologies and chemical profiles. Here, we assess mitochondrial genome diversity and variation in this flagship genus, with focused sampling of two clades of the “true” reindeer lichens, Cladonia … URL EndNote PDF Read more... 

35453
Wang Z., Wu B., Ma Z., Zhang M., Zeng H. & Yang L. (2023): Spectral determinants of biological soil crusts in the Gurbantungut Desert - International Journal of Remote Sensing, 44(7): 2273–2293

As thick crustal layers form on dryland surfaces, they affect the spectral information that is originally dominated by sand or rock. The spectral characteristics of organic matter replace the mineral elements as prominent features. In this case, the growth patterns and spectral characteristics of biological soil crusts (BSCs) can be observed. Satellite spectral data have been used for BSC spatial information extraction. However, the dynamic changes in BSCs can affect the spectra. Two aspects … URL EndNote PDF Read more... 

35454
Kasanke S.A., Walker D.A., Chapin III F.S. & Mann D.H. (2023): Plant succession on glacial moraines in the Arctic Brooks Range along a >125,000-year glacial chronosequence/toposequence - Arctic, Antarctic, and Alpine Research, 55(1): 2178151 [22 p.]

Widespread glacial retreat is now occurring in many arctic mountain ranges, yet little is known about primary succession following deglaciation in these settings. Newly created habitats could provide refugia for flora and fauna whose ranges are threatened elsewhere by rapid warming. To assess vegetation responses to glacial retreat in an arctic–alpine setting, we first describe plant community development on two recently deglaciated moraines in the Brooks Range. We then compare these recent … URL EndNote Read more... 

35455
Fang J., Mamut R., Wang L. & Anwar G. (2023): De novo mitochondrial genome sequencing of Cladonia subulata and phylogenetic analysis with other dissimilar species - PLoS ONE, 18(5): e0285818 [19 p.]

In this study, the complete mitochondrial genome of Cladonia subulata (L.) FH Wigg was sequenced and assembled and then compared with those of other Cladonia species. The mitogenome of Cladonia subulata, the type species of Cladonia, consisted of a circular DNA molecule of 58,895 bp 44 genes (15 protein-coding genes, 2 rRNA genes, and 27 tRNA genes). The base composition had shown an obvious AT preference, and all 27 tRNA genes formed a typical clover structure. Comparison with other 7 Cladonia … URL EndNote PDF Read more... 

35456
Fayyaz I., Knudsen K., Zulfqar R., Afshan N.S., Iftikhar F., Niazi A.R., & Khalid A.N. (2023): Taxonomic and phylogenetic study of genus Sarcogyne (Acarosporales, Acarosporaceae) reveals two new species from Pakistan - Mycological Progress , 22: 45 [9 p.]

Two new species, Sarcogyne crispula and S. pakistanensis are described and illustrated from Pakistan. Sarcogyne crispula is similar to S. praetermissa. Both have lecideine apothecia with smooth melanized margins which curl inward above the apothecial disc and grow on calcareous rock, but they difer especially in S. crispula having larger apothecia (2–3 mm wide vs. usually less than 1 mm) with thinner margins (50–70 vs. 70–120 μm) as well as difering in nrITS and mtSSU regions. Sarcogyne … URL EndNote PDF Read more... 

35457
Suija A. & van den Boom P.P.G. (2023): Phylogenetic relationships, taxonomic novelties, and combinations within Stictidaceae (Ostropales, Lecanoromycetes, Ascomycota): focus on Absconditella - Mycological Progress , 22: 46 [12 p.]

In this paper, we present new insights into the relationships of the lichen-forming genus Absconditella. The study is based on a phylogenetic analysis of DNA sequence data of three gene loci—two nuclear (the nuclear large subunit and internal transcribed spacer of rDNA) loci, and one mitochondrial (mitochondrial small subunit) locus, and an examination of species morphology. We show that Absconditella do not form a monophyletic lineage within Stictidaceae. One of the lineages, sister to … URL EndNote PDF Read more... 

35458
Pankratov T.A., Samylina O.S., Tikhonova E.N., Ianutsevich E.A., Avtukh A.N. & Lee Y.M. (2023): A novel bacteriobiont of the Arctic lichen Flavocetraria nivalis, Lichenifustis flavocetrariae gen. nov, sp. nov. demonstrating hydrolytic properties and containing a full set of the Calvin–Benson–Bassham cycle genes - Archives of Microbiology , 205: 232 [13 p.]

A Gram-negative, strictly aerobic, chemoorganotrophic, bacteriochlorophyll a-containing, slow-growing bacterium was isolated from the lichen Flavocetraria nivalis and designated strain BP6-180914 T. Cells of this strain were large nonmotile rods, which reproduced by binary fission. Cells grew under oxic conditions and were able to utilize sugars and several polysaccharides, including starch and pectin. Strain BP6-180914 T was psychrotolerant and moderately acidophilic growing at 4–35 °C (optimum … URL EndNote PDF Read more... 

35459
Zhong Q., Ai M., Worthy F.R., Yin A., Jiang Y., Wang L. & Wang X. (2023): Rediscovery of five Rinodina species originally described from southwest China and one new species - Diversity, 15(6): 705 [22 p.]

Rinodina is a lichenized fungal genus belonging to the Physciaceae, with c. 300 species worldwide. Nearly a century ago, Zahlbruckner described five species of the genus Rinodina from Southwest China. The type collections were the only records for these species. In the present study, new records for four of these species: Rinodina cornutula, R. globulans, R. handelii, and R. setschwana, and a recently described species, R. pluriloculata, are documented based on specimens collected from the holotype … URL EndNote PDF Read more... 

35460
Hou P., Nowak V.V., Taylor C.J., Calcott M.J., Knight A. & Owen J.G. (2023): A Genomic Survey of the Natural Product Biosynthetic Potential of Actinomycetes Isolated from New Zealand Lichens - mSystems, 8(2): e0103022

Actinomycetes are prolific producers of industrially valuable and medically important compounds. Historically, the most efficient method of obtaining compounds has been bioactivity-guided isolation and characterization of drug-like molecules from culturable soil actinomycetes. Unfortunately, this pipeline has been met with an increasing number of rediscoveries, to the point where it is no longer considered an attractive approach for drug discovery. To address this challenge and to continue finding … URL EndNote PDF Read more... 

Page 3546 of 3638 Results 35451 - 35460 of 36379