Hájek, Josef

• Vol.13,No.1(2023) (Original Papers)

  Cryoresistance of Antarctic endemic lichen Himantormia lugubris: Analysis of photosystem II functionality using a constant-rate cooling approach

  PDF

• Vol.12,No.2(2022) (Original Papers)

  What does critical temperature tell us about the resistance of polar lichens to freezing stress? Applicability of linear cooling method to ecophysiological studies.

  PDF

• Vol.12,No.2(2022) (Original Papers)

  Interannual variation of soil heat flux in a grass-dominated alpine tundra. Preliminary study from the Jeseníky Mts.

  PDF

• Vol.11,No.1(2021) (Workshop 2020: BIOSCIENCES IN POLAR AND ALPINE RESEARCH (Extended abstracts) Ecological, Social, and Geopolitical Interlinks)

  Mechanisms of Antarctic lichens resistance to cold and sub-zero temperature. Case study on Usnea sp.

  PDF

• Vol.1,No.1(2011) (Book review)

  John Turner and Gareth J. Marshall (2011): Climate Change in the Polar Regions

  PDF

• Vol.2,No.1(2012) (Original Papers)

  Interspecific differences in photosynthetic efficiency and spectral reflectance in two Umbilicaria species from Svalbard during controlled desiccation

  PDF

• Vol.12,No.1(2022) (Original Papers)

  Responses of primary photosynthetic processes to repetitive rehydration differ in two representatives of Svalbard moss flora

  PDF

• Vol.10,No.1(2020) (Workshop 2019: BIOSCIENCES IN POLAR AND ALPINE RESEARCH (Extended abstracts))

  Resistance of Antarctic lichens and unicellular alga Trebouxia sp. to extreme temperature. Laboratory study of linear cooling and shock freezing

  PDF

• Vol.3,No.2(2013) (Original Papers)

  Annual water temperature courses in two contrasting lakes at James Ross Island, Antarctica (Short Communication)

  PDF

• Vol.8,No.2(2018) (Original Papers)

  Comparative research of photosynthetic processes in selected poikilohydric organisms from Mediterranean and Central-European alpine habitats

  PDF

• Vol.5,No.1(2015) (Original Papers)

  Features of chlorophyll fluorescence transients can be used to investigate low temperature induced effects on photosystem II of algal lichens from polar regions ( Short Communication )

  PDF

• Vol.6,No.2(2016) (Original Papers)

  Changes in spectral reflectance of selected Antarctic and South American lichens caused by dehydration and artificially-induced absence of secondary compounds

  PDF

• Vol.2,No.1(2012) (Original Papers)

  Photoinhibition of photosynthesis in Antarctic lichen Usnea antarctica. I. Light intensity- and light duration-dependent changes in functioning of photosystem II

  PDF

• Vol.9,No.1(2019) (Original Papers)

  Microclimate variability of Antarctic terrestrial ecosystems manipulated by open top chambers: Comparison of selected austral summer seasons within a decade

  PDF

• Vol.6,No.1(2016) (Original Papers)

  Effects of controlled oxidative stress and uncouplers on primary photosynthetic processes in vegetative cells of Antarctic alga Zygnema sp.

  PDF

• Vol.4,No.2(2014) (Original Papers)

  Comparative analysis of heterogeneity of primary photosynthe-tic processes within fruticose lichen thalli: Preliminary study of interspecific differences ( Short Communication )

  PDF

• Vol.4,No.1(2014) (Original Papers)

  Photoinhibition of photosynthesis in Antarctic lichen Usnea antarctica. II. Analysis of non-photochemical quenching mechanisms activated by low to medium light doses

  PDF

• Vol.1,No.1(2011) (Original Papers)

  Climatic and ecological characteristics of deglaciated area of James Ross Island, Antarctica, with a special respect to vegetation cover

  PDF

• Vol.6,No.1(2016) (Original Papers)

  Dehydration-induced responses of primary photosynthetic processes and spectral reflectance indices in Antarctic Nostoc commune

  PDF

• Vol.9,No.2(2019) (Original Papers)

  Screening of growth phases of Antarctic algae and cyanobacteria cultivated on agar plates by chlorophyll fluorescence imaging

  PDF

• Vol.10,No.2(2020) (Original Papers)

  Light regimen-induced variability of photosynthetic pigments and UV-B absorbing compounds in Luzula sylvatica from Arcto-Alpine tundra

  PDF

• Vol.10,No.2(2020) (Original Papers)

  Spectral properties of Antarctic and Alpine vegetation monitored by multispectral camera: Case studies from James Ross Island and Jeseníky Mts.

  PDF

• Vol.3,No.1(2013) (Original Papers)

  Facilities of J. G. Mendel Antarctic station: Technical and technological solutions with a special respect to energy sources

  PDF