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Photosynthetic efficiency, desiccation tolerance and ultrastructure in two phylogenetically distinct strains of alpine Zygnema sp. (Zygnematophyceae, Streptophyta): role of pre-akinete formation
TLDR
It is concluded that pre-akinetes are crucial for the aeroterrestrial lifestyle of Zygnema and a partial recovery of ΔFv/Fm′ was only observed in older cultures. Expand
Osmotic stress in Arctic and Antarctic strains of the green alga Zygnema (Zygnematales, Streptophyta): Effects on photosynthesis and ultrastructure
TLDR
The effects of osmotic stress on ultrastructure and photosynthesis in polar green algal strains is examined, and physiological performance and ultrast structure are affected by osmosis stress. Expand
Localization and Quantification of Callose in the Streptophyte Green Algae Zygnema and Klebsormidium: Correlation with Desiccation Tolerance
TLDR
The hypothesis that callose, a β-d-1,3-glucan, is incorporated specifically in strained areas of the cell wall due to cellular water loss, implicating a contribution to desiccation tolerance is tested. Expand
Aniline blue and Calcofluor white staining of callose and cellulose in the streptophyte green algae Zygnema and Klebsormidium.
TLDR
Two simple protocols to visualize callose (β-1→3-glucan) and cellulose and related polysaccharides in the cell walls of streptophyte green algae by using standard dyes and epifluorescence microscopy are described. Expand
Conjugation morphology of Zygogonium ericetorum (Zygnematophyceae, Charophyta) from a high alpine habitat
TLDR
This study illustrates for the first time, using color light microscopic and fluorescence images, a consequent conjugation stage in Z. ericetorum, including completely developed zygospores and purple cytoplasmic residue content left outside the zygspores, similar to aplanospore formation. Expand
Dehydration, temperature, and light tolerance in members of the aeroterrestrial green algal genus Interfilum (Streptophyta) from biogeographically different temperate soils
TLDR
The presented data provide an explanation for the regular occurrence of Interfilum species in soil habitats where environmental factors can be particularly harsh, suggesting flexible acclimation mechanisms of the photosynthetic machinery. Expand
A Trihelix Family Transcription Factor Is Associated with Key Genes in Mixed-Linkage Glucan Accumulation1[OPEN]
TLDR
Results indicate that the transcription factor BdTHX1 likely plays an important role in MLG biosynthesis and restructuring by regulating the expression of BdCSLF6 and BdXTH8. Expand
PHYLOGENETIC POSITION OF ZYGOGONIUM ERICETORUM (ZYGNEMATOPHYCEAE, CHAROPHYTA) FROM A HIGH ALPINE HABITAT AND ULTRASTRUCTURAL CHARACTERIZATION OF UNUSUAL APLANOSPORES
TLDR
A variety of light, confocal, transmission electron microscopy, and cytochemical techniques provided new data on the variable chloroplast shape of Z. ericetorum and its aplanospore structure and development, which has been previously considered taxonomically important but has been ambiguously interpreted. Expand
Entransia and Hormidiella, sister lineages of Klebsormidium (Streptophyta), respond differently to light, temperature, and desiccation stress
TLDR
Investigating the photosynthetic performances of Hormidiella attenuata and two strains of Entransia fimbriata under light, temperature, and desiccation stress revealed significant differences between HormIDiella and entransia, but appropriate adaptations to their respective habitats. Expand
Desiccation tolerance in the chlorophyte green alga Ulva compressa: does cell wall architecture contribute to ecological success?
TLDR
The flexibility of the pectin-rich cell wall layers of U. compressa is suggested as a major contribution to desiccation tolerance in Ulva. Expand
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