Microstructures and photosynthetic diurnal changes in the different types of lichen soil crusts

Wu, Li; Zhang, Gaoke; Lan, Shubin; Zhang, Delu; Hu, Chunxiang

doi:10.1016/j.ejsobi.2013.10.001

Cited by 12 publications

(2 citation statements)

References 40 publications

(62 reference statements)

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“…Kidron et al (2002) and Veste and Littmann (2006) further determined 0.1 mm dewfall was necessary for net photosynthesis of AC and chlorolichen crusts. But we have found the recovery level of PS II change with water content (Wu et al, 2013a), AC1 could activate at 0.05 mm or so in situ (Fv/Fm only ca. 21% of ideal Fv/Fm).…”

Section: Discussionmentioning

confidence: 99%

Mechanism of biocrusts boosting and utilizing non-rainfall water in Hobq Desert of China

Ouyang

Lan

Yang

et al. 2017

Applied Soil Ecology

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Section: Discussionmentioning

confidence: 99%

Mechanism of biocrusts boosting and utilizing non-rainfall water in Hobq Desert of China

Ouyang

Lan

Yang

et al. 2017

Applied Soil Ecology

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“…The formation of BSCs begins with the colonization by filamentous cyanobacteria on the sand surface. Subsequently, the crusts gradually develop to the stages of lichen soil crusts (LSCs) (Wu et al 2013) thank to an increased establishment of lichen thalli in soil crust. The importance of soil crust development in ecological functioning in arid and semi-arid regions is well established (e.g.…”

Section: Introductionmentioning

confidence: 99%

Diurnal changes in photosynthetic activity of the biological soil crust and lichen: Effects of abiotic factors (Petuniabukta, Svalbard)

Sehnal¹,

Barták²,

Váczi³

2014

Czech Polar Rep.

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In polar ecosystems, primary producers have to cope with a very harsh climate that limits the time available for growth and biomass production. In this study, diurnal measurement of photosynthetic processes in biological soil crust and a lichen were carried out in Petuniabukta, Spitsbergen. For field measurements, a method of induced fluorescence of chlorophyll was used. Measurements of photosynthetic activity were taken as repetitive measurements of effective quantum yield of photosystem II (Φ PSII ). The short-term field measurements were carried out for 10 days in summer 2014. Φ PSII was recorded each 5 minutes as well as microclimatic data (air temperature, air humidity, photosynthetically active radiation -PAR). The microclimatic parameters were recorded by a datalogger. In general, physiological activity of both biological soil crust and a lichen showed daily courses. Tested lichen was Cladonia rangiferina and the most dominant species in biological soil crust was Nostoc sp. Typically, most of Φ PSII values ranged 0.6 -0.7 in both model organisms. The results have shown that photosynthetic activity was strongly correlated with all observed abiotic factors in both study objects. Particularly important was the relation found between PAR and Φ PSII in biological soil crust. When the biological soil crust was exposed to high PAR doses of irradiation (about 2300 µmol m -2 s -1 ) photoinhibition of primary processes of photosynthesis was observed as Φ PSII decrease, while photosynthetic activity of lichen remained at same level. Furthermore, it has been demonstrated increasing that in situ photosynthetic activity increased in both biological soil crust and lichen with a decrease in temperature.

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Structure, Composition, and Function of Biocrust Lichen Communities

Rosentreter

Eldridge

Westberg

et al. 2016

Biological Soil Crusts: An Organizing Principle in Drylands

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Microstructures and photosynthetic diurnal changes in the different types of lichen soil crusts

Cited by 12 publications

References 40 publications

Mechanism of biocrusts boosting and utilizing non-rainfall water in Hobq Desert of China

Mechanism of biocrusts boosting and utilizing non-rainfall water in Hobq Desert of China

Diurnal changes in photosynthetic activity of the biological soil crust and lichen: Effects of abiotic factors (Petuniabukta, Svalbard)

Structure, Composition, and Function of Biocrust Lichen Communities

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