Results 31 to 40 of about 13,726 (266)

Autotrophic processes in meromictic Big Soda Lake, Nevada [PDF]

Limnology and Oceanography, 1983
Daily rates of oxygenic photosynthesis (OP) by phytoplankton, anoxygenic photosynthesis (AP) by purple sulfur bacteria, and chemoautotrophic productivity (CP = dark CO2 assimilation) were measured once each season in saline, meromictic Big Soda Lake. Total daily productivity and the relative importance of each autotrophic process varied with seasonal ...
James E. Cloern, Brian E. Cole, Ronald S. Oremland   +2 more
openaire   +1 more source

Conservation and dissipation of light energy as complementary processes: homoiohydric and poikilohydric autotrophs [PDF]

Journal of Experimental Botany, 2006
The relationship between photosynthetic energy conservation and thermal dissipation of light energy is considered, with emphasis on organisms which tolerate full desiccation without suffering photo-oxidative damage in strong light. As soon as water becomes available to dry poikilohydric organisms, they resume photosynthetic water oxidation. Only excess
Ulrich, Heber, Otto L, Lange, Vladimir A, Shuvalov   +2 more
openaire   +2 more sources

Qualitative Distinction of Autotrophic and Heterotrophic Processes at the Leaf Level by Means of Triple Stable Isotope (C–O–H) Patterns [PDF]

, 2015
Foliar samples were harvested from two oaks, a beech, and a yew at the same site in order to trace the development of the leaves over an entire vegetation season. Cellulose yield and stable isotopic compositions (δ13C, δ18O, and δD) were analyzed on leaf
Zoltan Kern, Kern, Zoltan, Leuenberger, Markus, Markus Leuenberger, Kimak, Adam, Adam Kimak   +5 more
core   +1 more source

Cultivation of the microalgae Chlamydomonas reinhardtii and Desmodesmus quadricauda in highly deuterated media: Balancing the light intensity

Frontiers in Bioengineering and Biotechnology, 2022
The production of organic deuterated compounds in microalgal systems represents a cheaper and more versatile alternative to more complicated chemical synthesis.
Veronika Kselíková, Veronika Kselíková, Kamila Husarčíková, Peter Mojzeš, Vilém Zachleder, Kateřina Bišová   +5 more
doaj   +1 more source

Dinitrogen oxide production by a mixed culture of nitrifying bacteria during ammonia shock loading and aeration failure [PDF]

, 2002
A number of experiments was conducted in order to establish if N2O in the exhaust gas from an aerobic consortium of nitrifiers could be used as an indicator for monitoring the nitrification process.
Stephenson, T., Stephenson, Tom, Burgess, J. E., Colliver, B. B., Burgess, Joanna E., Stuetz, Richard M., Colliver, Bettina B.   +6 more
core   +1 more source

Improving carbon monoxide tolerance of Cupriavidus necator H16 through adaptive laboratory evolution

Frontiers in Bioengineering and Biotechnology, 2023
Background: The toxic gas carbon monoxide (CO) is abundantly present in synthesis gas (syngas) and certain industrial waste gases that can serve as feedstocks for the biological production of industrially significant chemicals and fuels.
Charles Wickham-Smith, Naglis Malys, Klaus Winzer   +2 more
doaj   +1 more source

Research progress on sulfur-based composite filler applied to denitrification of wastewater

Gongye shui chuli
Sulfur autotrophic denitrification technology has been widely concerned in advanced denitrification of wastewater treatment due to its lower cost, less sludge production and without secondary pollution.
WANG Anna, XU Shilong, YUAN Minzhong, YUAN Weifang, JIANG Feng, YAO Lu   +5 more
doaj   +1 more source

The heterotrophic-combined-with-autotrophic denitrification process: performance and interaction mechanisms

Water Science and Technology, 2015
In this work, the interaction mechanisms between an autotrophic denitrification (AD) and heterotrophic denitrification (HD) process in a heterotrophic-autotrophic denitrification (HAD) system were investigated, and the performance of the HAD system under different S/Ac− molar ratios was also evaluated.
Guihua, Xu, Cuijie, Feng, Fang, Fang, Shaohua, Chen, Yuanjian, Xu, Xingzu, Wang   +5 more
openaire   +2 more sources

Interaction effects in microbiota-filter media-pharmaceutical in biofilm-based reactors: a case study of anoxic biofilters

Environment International
The removal of micropollutants, particularly pharmaceuticals, from wastewater remains a significant challenge due to their persistence and complex degradation mechanisms.
Rui Ma, Han Zhao, Ying Zhao, Lili Jin, Hui Huang, Hongqiang Ren   +5 more
doaj   +1 more source

Phytoplankton Orientation in a Turbulent Ocean: A Microscale Perspective

Frontiers in Marine Science, 2020
Phytoplankton are by definition autotrophic microorganisms that passively drift with fluid motion. Accordingly, the traditional view of a turbulence-homogenized phytoplankton distribution in the ocean, where cells randomly organize and interact, is ...
G. Basterretxea, J. S. Font-Muñoz, J. S. Font-Muñoz, I. Tuval, I. Tuval   +4 more
doaj   +1 more source