Suppression subtractive hybridization reveals transcript profiling of Chlorella under heterotrophy to photoautotrophy transition. [PDF]
PLoS ONE, 2012 Microalgae have been extensively investigated and exploited because of their competitive nutritive bioproducts and biofuel production ability. Chlorella are green algae that can grow well heterotrophically and photoautotrophically.
Jianhua Fan +6 more
doaj +5 more sources
Archean Photoautotrophy: Some Alternatives and Limits
Origins of Life, 1979 From the Archean geological record, one can infer that photoautotrophy evolved early in earth history; however the nature of this photosynthesis -- whether it was predominately or cyanobacterial -- is less clearly understood. General agreement tht the earth's atmosphere did not become oxygen rich before the Early Proterozoic era places constraints on ...
Knoll, Andrew
core +4 more sources
Biosignatures Associated with Freshwater Microbialites
Life, 2020 Freshwater microbialites (i.e., lithifying microbial mats) are quite rare in northern latitudes of the North American continent, with two lakes (Pavilion and Kelly Lakes) of southeastern BC containing a morphological variety of such structures.
Richard Allen White +5 more
doaj +2 more sources
Harnessing solar power: photoautotrophy supplements the diet of a low-light dwelling sponge [PDF]
The ISME Journal, 2022 Abstract The ability of organisms to combine autotrophy and heterotrophy gives rise to one of the most successful nutritional strategies on Earth: mixotrophy. Sponges are integral members of shallow-water ecosystems and many host photosynthetic symbionts, but studies on mixotrophic sponges have focused primarily on species residing in ...
Meggie Hudspith +9 more
openaire +8 more sources
The PsbP Protein Is Required for Photosystem II Complex Assembly/Stability and Photoautotrophy in Arabidopsis thaliana [PDF]
Journal of Biological Chemistry, 2007 Interfering RNA was used to suppress the expression of the genes At1g06680 and At2g30790 in Arabidopsis thaliana, which encode the PsbP-1 and PsbP-2 proteins, respectively, of photosystem II (PS II). A phenotypic series of transgenic plants was recovered that expressed intermediate and low amounts of PsbP. Chlorophyll fluorescence induction and Q(A)(-)
Xiaoping, Yi +4 more
openaire +4 more sources
Arsenite-dependent photoautotrophy by an Ectothiorhodospira -dominated consortium [PDF]
The ISME Journal, 2008 Abstract Over the past decade numerous lineages of bacteria have been shown to obtain energy for growth through redox transformations of arsenic. However, phototrophic growth using reduced arsenic as an electron donor has not been described. Here we report the light-dependent oxidation of arsenite to arsenate, coupled with autotrophic
Charles R, Budinoff, James T, Hollibaugh
openaire +3 more sources
How photoautotrophy, photomixotrophy, and ventilation affect the stomata and fluorescence emission of pistachios rootstock? [PDF]
Open Life Sciences, 2021 The effects of ventilation and sucrose concentration on proliferation and organogenesis of pistachio cutting and photosynthetic performance of two in vitro cultures of pistachio rootstocks have been assessed.
Meimand Mohammad Javad Mahmoudi +3 more
doaj +3 more sources
Contrasting Soil Bacterial Community, Diversity, and Function in Two Forests in China [PDF]
Frontiers in Microbiology, 2018 Bacteria are the highest abundant microorganisms in the soil. To investigate bacteria community structures, diversity, and functions, contrasting them in four different seasons all the year round with/within two different forest type soils of China.
Hua Wei +16 more
doaj +2 more sources
Evolution of Photoautotrophy and Early Atmospheric Oxygen Levels
Precambrian Research, 1983 Abstract Current photochemical models suggest that oxygen levels in the prebiological atmosphere were extremely low, most probably remaining in the range 10−8–10−14 PAL (present atmospheric level). It is, therefore, reasonable to assume that only life processes were able to overwhelm these minor O2-pressures, with free oxygen resulting from the ...
Manfred Schidlowski
openaire +2 more sources
Poly‐β‐hydroxybutyrate accumulation in cyanobacteria under photoautotrophy
Biotechnology Journal, 2010 AbstractPoly‐β‐hydroxybutyrate (PHB) is a biodegradable and biocompatible polymer that has immense potential in the field of environmental, agricultural and biomedical sciences. An alternative host system has been explored in this study for low‐cost production.
Ranjana, Bhati +3 more
openaire +3 more sources