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Article: Composition and diversity of endolichenic microfungal communities from saxicolous lichens at Nahal Boker, the central Negev Desert, Israel

Grishkan, Isabella / Temina, Marina

Fungal ecology. 2023 Feb., v. 61

2023

Abstract: We studied the endolichenic fungal communities from saxicolous lichens occupying the cobbles at Nahal Boker, the central Negev Desert, Israel. Overall, 101 species belonging to 64 genera were isolated from 12 lichen species collected in three seasons ... ...

Abstract	We studied the endolichenic fungal communities from saxicolous lichens occupying the cobbles at Nahal Boker, the central Negev Desert, Israel. Overall, 101 species belonging to 64 genera were isolated from 12 lichen species collected in three seasons from the south-facing slope (SFS) and north-facing slope (NFS) of the wadi. The endolichenic communities possessed a set of traits, which helped them to cope with harsh internal and external conditions. It included a prevalence of melanin-containing fungi with thick-walled and multicellular spores and a comparatively high contribution of thermotolerant species and species with meiospore-producing life cycle stage at the more microclimatically severe SFS. Species richness and isolate density of endolichenic communities was the highest in fruticose lichens with thick and wrinkled thalli, and the lowest in endolithic species possessing thin and smooth thalli. The communities from lichens formed a more diverse group than those from surrounding cobbles probably due to the influence of various species of lichens belonging to different growth forms.
Keywords	fungi ; heat tolerance ; lichens ; species richness ; thallus ; Israel
Language	English
Dates of publication	2023-02
Publishing place	Elsevier Ltd
Document type	Article
ISSN	1754-5048
DOI	10.1016/j.funeco.2022.101196
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Metagenomics Shines Light on the Evolution of "Sunscreen" Pigment Metabolism in the Teloschistales (Lichen-Forming Ascomycota).

Llewellyn, Theo / Nowell, Reuben W / Aptroot, Andre / Temina, Marina / Prescott, Thomas A K / Barraclough, Timothy G / Gaya, Ester

Genome biology and evolution

2023 Volume 15, Issue 2

Abstract: Fungi produce a vast number of secondary metabolites that shape their interactions with other organisms and the environment. Characterizing the genes underpinning metabolite synthesis is therefore key to understanding fungal evolution and adaptation. ... ...

Abstract	Fungi produce a vast number of secondary metabolites that shape their interactions with other organisms and the environment. Characterizing the genes underpinning metabolite synthesis is therefore key to understanding fungal evolution and adaptation. Lichenized fungi represent almost one-third of Ascomycota diversity and boast impressive secondary metabolites repertoires. However, most lichen biosynthetic genes have not been linked to their metabolite products. Here we used metagenomic sequencing to survey gene families associated with production of anthraquinones, UV-protectant secondary metabolites present in various fungi, but especially abundant in a diverse order of lichens, the Teloschistales (class Lecanoromycetes, phylum Ascomycota). We successfully assembled 24 new, high-quality lichenized-fungal genomes de novo and combined them with publicly available Lecanoromycetes genomes from taxa with diverse secondary chemistry to produce a whole-genome tree. Secondary metabolite biosynthetic gene cluster (BGC) analysis showed that whilst lichen BGCs are numerous and highly dissimilar, core enzyme genes are generally conserved across taxa. This suggests metabolite diversification occurs via re-shuffling existing enzyme genes with novel accessory genes rather than BGC gains/losses or de novo gene evolution. We identified putative anthraquinone BGCs in our lichen dataset that appear homologous to anthraquinone clusters from non-lichenized fungi, suggesting these genes were present in the common ancestor of the subphylum Pezizomycotina. Finally, we identified unique transporter genes in Teloschistales anthraquinone BGCs that may explain why these metabolites are so abundant and ubiquitous in these lichens. Our results support the importance of metagenomics for understanding the secondary metabolism of non-model fungi such as lichens.
MeSH term(s)	Phylogeny ; Lichens/genetics ; Lichens/microbiology ; Sunscreening Agents/metabolism ; Anthraquinones/metabolism ; Ascomycota ; Multigene Family
Chemical Substances	Sunscreening Agents ; 9,10-anthraquinone (030MS0JBDO) ; Anthraquinones
Language	English
Publishing date	2023-02-13
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2495328-3
ISSN	1759-6653 ; 1759-6653
ISSN (online)	1759-6653
ISSN	1759-6653
DOI	10.1093/gbe/evad002
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Article ; Online: The effect of the water source on niche partioning of chlorolichens and cyanobacteria-implications for resilience?

Kidron, Giora J / Kronenfeld, Rafael / Tal, Shimon Y / Temina, Marina / Starinsky, Abraham / McKay, Christopher P

Planta

2023 Volume 258, Issue 1, Page(s) 8

Abstract: Main conclusion: Microclimate determines lichens and cyanobacteria distribution in the Negev, with lichens and cyanobacteria inhabit dewy and dewless habitats, respectively. Lichens experiences more frequent and extensive environmental fluctuations than ...

Abstract	Main conclusion: Microclimate determines lichens and cyanobacteria distribution in the Negev, with lichens and cyanobacteria inhabit dewy and dewless habitats, respectively. Lichens experiences more frequent and extensive environmental fluctuations than cyanobacteria. The spatial partitioning of chlorolichens (eukaryotes) and cyanobacteria (prokaryotes) are intriguing, especially following recent intense search for extraterrestrial life. This is especially relevant for deserts, where both lithobionts are thought to use rain and dew but may differ in their resilience to environmental extremes and fluctuations. Following the different spatial distribution of lithobionts in a south-facing slope of the Negev Highlands (with cyanobacteria-inhabiting rocks and chlorolichen-inhabiting cobbles), measurements of temperature, non-rainfall water (NRW) and biomass were carried out within the drainage basin aiming to test the hypotheses that (i) cobble-inhabiting lichens may access more water (through NRW) and may be subjected to more extensive environmental fluctuations of temperature and water than bedrock-inhabiting cyanobacteria, and (ii) will therefore have a greater contribution to the ecosystem productivity. In contrast to cyanobacteria, cobble-inhabiting chlorolichens were found to access NRW (up to 0.20 mm of daily amounts in comparison to < 0.04 mm of the cyanobacteria) and to experience higher fluctuations of temperatures (up to 4.1 °C higher and 5.3 °C lower). With lichens and cyanobacteria inhabiting dewy and dewless habitats, respectively, NRW was found responsible for contributing 6.8-fold higher organic carbon to the lithobiontic community. At this site, chlorolichens experience more extensive environmental fluctuations than cyanobacteria, possibly indicating a higher tolerance for environmental fluctuations. These observations may assist in the interpretation of the abiotic conditions responsible for past or present lithobiontic life on Mars.
MeSH term(s)	Water ; Ecosystem ; Cyanobacteria ; Lichens ; Biomass
Chemical Substances	Water (059QF0KO0R)
Language	English
Publishing date	2023-05-25
Publishing country	Germany
Document type	Journal Article
ZDB-ID	208909-9
ISSN	1432-2048 ; 0032-0935 ; 1866-2749
ISSN (online)	1432-2048
ISSN	0032-0935 ; 1866-2749
DOI	10.1007/s00425-023-04165-5
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Article: Basaltic stones with epilithic lichens as a novel substrate for an osmotolerant fungus, Aspergillus glaucus

Grishkan, Isabella / Temina, Marina

Acta mycologica. 2017 July 03, v. 52, no. 1

2017

Abstract: Aspergillus glaucus is a fungus able to tolerate low water activity of the environment. Its dense growth and sporulation were found on basaltic stones with epilithic lichens after 14 years of storage at a temperature of 4–7°C and relative humidity of 14– ... ...

Abstract	Aspergillus glaucus is a fungus able to tolerate low water activity of the environment. Its dense growth and sporulation were found on basaltic stones with epilithic lichens after 14 years of storage at a temperature of 4–7°C and relative humidity of 14–18%. Dust and soil particles deposited on the lichen thalli and dissolved in the water condensed on the stones during the storage period, apparently served as a nutrient source for the fungus. Probably, strongly xeric water regime on basaltic stones suitable for A. glaucus did not allow mesophilic fungi to develop and prevented the xerotolerant fungus from competition with other microfungi for nutrient sources. It is also possible that specific cellular mechanism associated with the production of chaotropic compounds (such as glycerol) supported germination and development of A. glaucus at low temperatures, which were considered non-optimal for the fungus.
Keywords	Aspergillus glaucus ; dust ; fungi ; germination ; glycerol ; lichens ; osmotolerance ; relative humidity ; soil ; sporulation ; storage temperature ; storage time ; thallus ; water activity
Language	English
Dates of publication	2017-0703
Size	p. am.1091.
Publishing place	Polish Botanical Society
Document type	Article
ZDB-ID	2397739-5
ISSN	2353-074X ; 0001-625X
ISSN (online)	2353-074X
ISSN	0001-625X
DOI	10.5586/am.1091
Database	NAL-Catalogue (AGRICOLA)

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Article: The effect of dew on flint and limestone lichen communities in the Negev Desert

Temina, Marina / Giora J. Kidron

Flora. 2015 May, v. 213

2015

Abstract: Although lichens are important components of arid ecosystems, the influence of microclimatic factors (particularly dew) conducive to their distribution on rock habitats in the Negev Desert are still not sufficiently investigated. Here, we present a study ...

Abstract	Although lichens are important components of arid ecosystems, the influence of microclimatic factors (particularly dew) conducive to their distribution on rock habitats in the Negev Desert are still not sufficiently investigated. Here, we present a study on adjacent lichen communities inhabiting slightly acidic flint (chert) and slightly alkaline limestone cobbles in the north-facing slopes of two sites in the Negev Desert, Nizzana, NIZ (with long-term mean precipitation of 95mm and average daily dew amount of 0.1mm) and Sede Boqer, SB (with long-term mean precipitation of 95mm and average daily dew amount of 0.2mm). The communities on flint consisted of either scarce or lush cover of exclusively epilithic species, while endolithic lichens predominated on limestone. Following previous measurements that indicated that similar dew amounts characterize limestone and flint cobbles, we hypothesized that differences in the flint- and limestone-lichen communities may stem from differences in dew duration. Our results pointed indeed to the fact that while non-significant differences characterized the amounts of dew condensed on both substrates, dew duration on some of the flint cobbles (such as flat cobbles that readily permits long-lasting condensation) was by â¼1.2 longer. With longer dew duration, the cover of the epilithic lichens Aspicilia contorta subsp. hoffmanniana and Buellia sorediosa on flint increased along with the cover of the fruticose lichen Ramalina maciformis. Some of the species (Caloplaca circumalbata var. circumalbata, Caloplaca flavocitrina, Caloplaca oasis, Candelariella minuta, Diplotomma epipolium) inhabited both substrates pointing to the possibility that dew duration rather than alkalinity determines their distribution. While not explaining the higher lichen cover on limestone, dew duration explains the significantly higher cover of epilithic lichens and chlorophyll content (per inhabited surface) on flint in comparison to limestone.
Keywords	alkalinity ; Aspicilia ; Buellia ; Caloplaca ; Candelariella ; chlorophyll ; dew ; ecosystems ; habitats ; lichens ; limestone ; microclimate ; oases ; Ramalina
Language	English
Dates of publication	2015-05
Size	p. 77-84.
Publishing place	Elsevier GmbH
Document type	Article
ZDB-ID	5580-3
ISSN	0367-2530 ; 0373-6490
ISSN	0367-2530 ; 0373-6490
DOI	10.1016/j.flora.2015.04.005
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Article: The Effect of Dew and Fog on Lithic Lichens Along an Altitudinal Gradient in the Negev Desert

Kidron, Giora J / Temina, Marina

Geomicrobiology journal. 2013 Feb. 1, v. 30, no. 4

2013

Abstract: The effect of dew upon lichen communities was studied in three sites along an altitudinal gradient in the Negev Desert. The sites [Nizzana, NIZ (250m a.s.l), Sede Boqer, SB (530m a.s.l.) and Har Harif, HH (990m a.s.l.)] have similar rain precipitation (∼ ... ...

Abstract	The effect of dew upon lichen communities was studied in three sites along an altitudinal gradient in the Negev Desert. The sites [Nizzana, NIZ (250m a.s.l), Sede Boqer, SB (530m a.s.l.) and Har Harif, HH (990m a.s.l.)] have similar rain precipitation (∼100 mm) but different dew precipitation of 0.11, 0.21 and 0.32 mm, respectively. A clear gradient was found for the chlorophyll content with NIZ (38.6 mg m⁻²)<SB (52.6 mg m⁻²)<HH (71.3 mg m⁻²), and the epilithic growth form with NIZ (1.4%) < SB (4.3%) ≪ HH (53.6%) highlighting the fundamental role played by dew in dictating the structure of lichen communities. The findings may assist us in identifying lichens that may serve as biomarkers for dew availability and in anticipating changes in the lichen communities following global warming.<br />
Keywords	biomarkers ; chlorophyll ; dew ; global warming ; lichens ; rain
Language	English
Dates of publication	2013-0201
Size	p. 281-290.
Publishing place	Taylor & Francis Group
Document type	Article
ZDB-ID	1482560-0
ISSN	1521-0529 ; 0149-0451
ISSN (online)	1521-0529
ISSN	0149-0451
DOI	10.1080/01490451.2012.672542
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Article: Lichens as biomarkers for dew amount and duration in the Negev Desert

Temina, Marina / Kidron, Giora J

Flora Morphologie, Geobotanik, Oekophysiologie. 2011 July, v. 206, no. 7

2011

Abstract: We studied the lichen diversity on cobbles at 18 stations located within 4 aspects of a second order drainage basin near Sede Boqer at the Negev Highlands, Israel, where dew was found to be the main water source for lichens. At each station 10 cobbles ... ...

Abstract	We studied the lichen diversity on cobbles at 18 stations located within 4 aspects of a second order drainage basin near Sede Boqer at the Negev Highlands, Israel, where dew was found to be the main water source for lichens. At each station 10 cobbles were randomly chosen and the lichen community composition and structure were investigated and compared to the dew amount and duration that characterize each station. Excluding the wadi stations that showed a very heterogeneous population (probably originating from cobbles that rolled down from both adjacent slopes) and were therefore excluded from the analysis, all other stations were grouped into 5 clusters that showed a close link with the dew moisture regime. Lichen distribution pointed to species which can serve as biomarkers for dew amount and especially for dew duration. The data imply that at a meso-scale, lichens can provide information regarding the dew regime of habitats where no microclimatological data are available.
Keywords	biogeography ; biomarkers ; community structure ; deserts ; dew ; habitats ; lichens ; watersheds
Language	English
Dates of publication	2011-07
Size	p. 646-652.
Document type	Article
ZDB-ID	5580-3
ISSN	0367-2530 ; 0373-6490
ISSN	0367-2530 ; 0373-6490
DOI	10.1016/j.flora.2010.11.014
Database	NAL-Catalogue (AGRICOLA)

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Article: Lichens of Israel: diversity, ecology, and distribution

Temina, Marina / Nevo, Eviatar

BioRisk. 2009 Dec. 28, v. 3

2009

Abstract: The biota of lichen-forming and lichenicolous fungi of different plant-geographical regions of Israel was analyzed. These areas differ in climatic conditions. A total of 350 species from 16 orders, 52 families, and 117 genera were recorded; among them 5% ...

Abstract	The biota of lichen-forming and lichenicolous fungi of different plant-geographical regions of Israel was analyzed. These areas differ in climatic conditions. A total of 350 species from 16 orders, 52 families, and 117 genera were recorded; among them 5% are endemic to the Levant. The highest species richness was found in the Mediterranean area. Species diversity of other areas with more arid climatic conditions were much poorer in comparison with species diversity found in the more humid and cooler Mediterranean region. Saxicolous lichens were the most common species. However, in the Sudanian penetration area, terricolous lichens dominated. Among phytogeographic elements, temperate species were dominant. However, the Sudanian penetration area was characterized by the dominance of Mediterranean and subcontinental species. Most of the lichens studied were xerophytic and photophytic species. They dominated all plant-geographical areas of Israel. In the Mediterranean region, mesophytic lichens were also common.
Keywords	phytogeography ; species richness ; Israel ; Mediterranean region
Language	English
Dates of publication	2009-1228
Size	p. 127-136.
Publishing place	Pensoft Publishers
Document type	Article
Note	NAL-AP-2-clean
ISSN	1313-2652
DOI	10.3897/biorisk.3.25
Database	NAL-Catalogue (AGRICOLA)

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Article: An Investigation of the Role of Water (Rain and Dew) in Controlling the Growth Form of Lichens on Cobbles in the Negev Desert

Kidron, Giora J / Temina, Marina / Starinsky, Avraham

Geomicrobiology journal. 2011 May 1, v. 28, no. 4

2011

Abstract: Dew and rain were measured along the north facing slope (NFS, with epilithic lichens predominating) and the south-facing slope (SFS, with endolithic lichens predominating) in the Negev (P = 95 mm) in order to evaluate the relationships between the ... ...

Abstract	Dew and rain were measured along the north facing slope (NFS, with epilithic lichens predominating) and the south-facing slope (SFS, with endolithic lichens predominating) in the Negev (P = 95 mm) in order to evaluate the relationships between the abiotic conditions and the lichen growth form. Although insignificant differences characterize the rain and dew amounts with the epilithic growth form, high correlation was obtained between dew duration (r² = 0.73) and the combined duration of dew and rain (r² = 0.79). The data imply that daylight wetness duration rather than the amount of precipitation may explain the predominance of epilithic lichens at the shaded NFS.
Keywords	dew ; lichens ; rain
Language	English
Dates of publication	2011-0501
Size	p. 335-346.
Publishing place	Taylor & Francis Group
Document type	Article
ZDB-ID	1482560-0
ISSN	1521-0529 ; 0149-0451
ISSN (online)	1521-0529
ISSN	0149-0451
DOI	10.1080/01490451.2010.501707
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Article: Biodiversity of the chemical constituents in the epiphytic lichenized ascomycete Ramalina lacera grown on difference substrates Crataegus sinaicus, Pinus halepensis, and Quercus calliprinos.

Hanus, Lumir Ondrej / Temina, Marina / Dembitsky, Valery

Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia

2009 Volume 152, Issue 2, Page(s) 203–208

Abstract: Aim: The identification and evaluation of lichen metabolite production by the epiphytic lichenized ascomycete Ramalina lacera collected from different substrates: Crataegus sinaicus, Pinus halepensis, and Quercus calliprinos.: Methods: Chemical ... ...

Abstract	Aim: The identification and evaluation of lichen metabolite production by the epiphytic lichenized ascomycete Ramalina lacera collected from different substrates: Crataegus sinaicus, Pinus halepensis, and Quercus calliprinos. Methods: Chemical constituents were characterized by GC MS, HPLC, HR TLC, and other chemical methods. Results: The most abundant fatty acids were alpha-linolenic acid, oleic acid, and palmitic acid but a considerable variability of the ester composition from one to another was found. A comparison of neutral lipids, glycolipids, polar lipids and fatty acid composition of the tree growing lichen Ramalina lacera was done. Diacylglyceryl N,N,N trimethylhomoserine, diaclyglycerylhydroxymethyl N,N,N trimethyl beta alanine, phosphatidylcholine, and phosphatidylinositol were found as major components among polar lipids. Diffractaic, lecanoric, norstictic, protocetric, and usnic acids were isolated as major aromatic compounds in all samples of R. lacera. Conclusions: We evaluated a diversity of fatty acids, lipids, and aromatic compounds produced by the samples of Ramalina lacera growing on different tree substrates, Crataegus sinaicus, Pinus halepensis and Quercus calliprinos.
MeSH term(s)	Ascomycota/chemistry ; Ascomycota/growth & development ; Crataegus ; Fatty Acids/analysis ; Lichens/chemistry ; Lichens/growth & development ; Lipids/analysis ; Quercus ; Symbiosis
Chemical Substances	Fatty Acids ; Lipids
Language	English
Publishing date	2009-02-12
Publishing country	Czech Republic
Document type	Journal Article
ZDB-ID	17196-7
ISSN	1804-7521 ; 1213-8118 ; 0231-5599 ; 0862-481X
ISSN (online)	1804-7521
ISSN	1213-8118 ; 0231-5599 ; 0862-481X
DOI	10.5507/bp.2008.031
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