Mikroklima, Wassergehalt und Photosynthese von Flechten in der küstennahen Nebelzone der Namib-Wüste: Messungen während der herbstlichen Witterungsperiode

Lange, O. L.; Meyer, A.; Ullmann, I.; Zellner, H.

doi:10.1016/s0367-2530(17)30481-4

Cited by 56 publications

(37 citation statements)

References 24 publications

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“…One species of Lecanographa , L. subdryophila (Follmann & Vězda) Egea & Torrente, is known from California and Chile, but is epiphytic rather than saxicolous, whereas the saxicolous L. subcaesioides Egea & Torrente has a South American-South African distribution ( Egea and Torrente, 1994 ) and also occurs in Galapagos. The mostly epiphytic genus Fulvophyton , a re- dependence on dew or fog in the early morning hours greatly reduces net photosynthesis ( Rundel, 1978 ;Lange et al, 1991Lange et al, , 2006Lange et al, , 2008. Therefore, it is possible that these lichens indeed have low substitution rates, with only few species evolving in this clade over the past 150 Myr.…”

Section: Discussionmentioning

confidence: 99%

Journey from the West: Did tropical Graphidaceae (lichenized Ascomycota: Ostropales) evolve from a saxicolous ancestor along the American Pacific coast?

Lücking

Tehler²,

Bungartz

et al. 2013

American J of Botany

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• Premise of the study: This study elucidates the phylogenetic position of a unique taxon of Graphidaceae occurring on rock in coastal desert areas, assessing its importance for our understanding of the evolution of the largest family of tropical lichenized fungi.• Methods: We used maximum likelihood and Bayesian approaches to reconstruct a three‐gene phylogeny of Graphidaceae and a Bayesian molecular clock approach to estimate divergence dates for major clades, as well as Bayesian ancestral ecogeography state analysis.• Key results: The new genus Redonographa represents a new subfamily, Redonographoideae, sister to subfamily Graphidoideae. Redonographa is exclusively saxicolous and restricted to the American Pacific coast from California to central Chile, including Galapagos. It contains four species: Redonographa chilensis comb. nov., R. saxiseda comb. nov., R. saxorum comb. nov., and R. galapagoensis sp. nov. The genus Gymnographopsis, with a similar ecogeography but differing in excipular carbonization and chemistry, is also included in Redonographoideae, with the species G. chilena from Chile and G. latispora from South Africa. Molecular clock analysis indicates that Redonographoideae diverged from Graphidoideae about 132 million years ago (Ma) in the Early Cretaceous.• Conclusions: The divergence date for subfamilies Redonographoideae and Graphidoideae coincides with the early breakup of Gondwana and ancient origin of the Atacama Desert. However, the common ancestor of Redonographoideae plus Graphidoideae was reconstructed to be tropical‐epiphytic. Thus, even if Redonographoideae is subtropical‐saxicolous, the hypothesis that Graphidoideae evolved from a subtropical‐saxicolous ancestor is not supported.

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Section: Discussionmentioning

confidence: 99%

Journey from the West: Did tropical Graphidaceae (lichenized Ascomycota: Ostropales) evolve from a saxicolous ancestor along the American Pacific coast?

Lücking

Tehler²,

Bungartz

et al. 2013

American J of Botany

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“…Photosynthetic performance of rock-colonising lichens in South Africa, their water relations, and aspects of the endolithic lifestyle in arid environments are discussed by wessels & Schoeman (1988), wessels (1989), wessels & Büdel (1989), Lange et al (1991), wessels & wessels (1991), wessels & Kappen (1993, Beckett (1996Beckett ( , 1998, and Winkler & Kappen (1997). Functional lichen diversity in South African terricolous and saxicolous communities of biological soil crusts are discussed by Zedda et al (2001) and Zedda & Rambold (2003.…”

Section: South Africamentioning

confidence: 99%

Austral lichenology: 1690–2008

Galloway¹

2008

New Zealand Journal of Botany

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This review summarises lichen work in the temperate Southern Hemisphere. A brief historical overview of austral lichenology is presented from the earliest European voyages of discovery up to the present day. Current knowledge is outlined for Australia, New Zealand, South Africa, southern South America, the Southern Subpolar islands, and Antarctica. Biogeographical patterns, and the importance of lichens in nutrient cycling, habitat restoration, and monitoring of global change, are also discussed from an austral perspective.

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“…However, the ability of lichens to adapt to different PPFD environments cannot be questioned, and saturating values of PPFD for NP range from 1% to more than 50% of full sunlight Lange et al 1991). Although an extensive literature exists on the adaptations and tolerance to environmental factors such as temperature and WC (Kappen 1988), there appear to have been few detailed studies of NP response to PPFD.…”

Section: Introductionmentioning

confidence: 99%

Temperate rainforest lichens in New Zealand: Light response of photosynthesis

Green

Büdel

Meyer

et al. 1997

New Zealand Journal of Botany

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The photosynthetic response to photosynthetically active photon flux density (PPFD) was measured in the field for nine New Zealand rain forest lichen species spanning environments from the deep shade within the forest through the forest margin to outside, open ground sites. Light compensation (PPFDr and light saturation (PPFDsat) were much higher for the species of the open sites (over 50 and 500 pmol/m2.s, respectively). Lichens at forest margin or within the forest had PPFDsat of 64.3-29, and 61-162, ktmol/m2.s, respectively, but showed no apparent adaptive trends for these parameters. PPFD response of photosynthesis was measured at several thallus water contents (WC) for one species, Pseudocyphellaria coronata, which showed severe depression of photosynthesis at high WC because of B96022

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Mikroklima, Wassergehalt und Photosynthese von Flechten in der küstennahen Nebelzone der Namib-Wüste: Messungen während der herbstlichen Witterungsperiode

Cited by 56 publications

References 24 publications

Journey from the West: Did tropical Graphidaceae (lichenized Ascomycota: Ostropales) evolve from a saxicolous ancestor along the American Pacific coast?

Journey from the West: Did tropical Graphidaceae (lichenized Ascomycota: Ostropales) evolve from a saxicolous ancestor along the American Pacific coast?

Austral lichenology: 1690–2008

Temperate rainforest lichens in New Zealand: Light response of photosynthesis

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