Results 1 to 10 of about 89 (82)

Biochemical relationship of phosphoenolpyruvate carboxylases (PEPCs) from thermophilic archaea [PDF]

FEMS Microbiology Letters, 2006
An archaeal phosphoenolpyruvate carboxylase (PEPC) was purified from an acidophilic extreme thermophile, Sulfolobus acidocaldarius. The native enzyme was a homotetramer of 260±20 kDa molecular mass composed of 60±5 kDa subunits. The enzyme appeared to have a temperature optimum of 90°C and a pH optimum of 8.0. The activity of S.
Yoshihiko Sako, Ken Takai, Takahiro Nishizaka, Yuzaburo Ishida   +3 more
openaire   +2 more sources

Light Regulation of the Photosynthetic Phospho enol pyruvate Carboxylase (PEPC) in Hydrilla verticillata [PDF]

Plant and Cell Physiology, 2006
The submersed monocot, Hydrilla verticillata (L.f.) Royle, is a facultative C(4) NADP-malic enzyme (NADP-ME) plant in which the C(4) and Calvin cycles co-exist in the same cell. Futile cycling is avoided by an intracellular separation of carboxylases between the cytosol and chloroplasts. Of the two sequenced H.
Srinath, Rao, Julia, Reiskind, George, Bowes   +2 more
openaire   +2 more sources

Bacterial-type Phosphoenolpyruvate Carboxylase (PEPC) Functions as a Catalytic and Regulatory Subunit of the Novel Class-2 PEPC Complex of Vascular Plants [PDF]

Journal of Biological Chemistry, 2009
Phosphoenolpyruvate carboxylase (PEPC) is a tightly regulated anaplerotic enzyme situated at a major branch point of the plant C metabolism. Two distinct oligomeric classes of PEPC occur in the triglyceride-rich endosperm of developing castor oil seeds (COS).
Brendan, O'Leary, Srinath K, Rao, Julia, Kim, William C, Plaxton   +3 more
openaire   +2 more sources

Species Dynamics and Gene Expression in Algal Polycultures Under Mixotrophic Cultivation in Outdoor Pilot‐Scale Nordic Conditions

Biotechnology and Bioengineering, EarlyView.
These results demonstrate that mixotrophic conditions drive both microbial community shifts and metabolic reprogramming, underscoring the importance of cultivation strategy and polyculture selection for targeted applications such as nutrient recovery and bioproduct generation.
Quyen Nham, Hanna Farnelid, Catherine Legrand, Elin Lindehoff   +3 more
wiley   +1 more source

CO2 Fertilisation of Growth in Wild C4 Grasses may be Amplified by Upregulated Photosynthesis

Plant, Cell &Environment, EarlyView.
ABSTRACT Rising atmospheric CO2 is expected to have limited direct effects on C4 photosynthesis because the carbon‐concentrating mechanism maintains near‐saturating CO2 at Rubisco. Consequently, growth responses of C4 plants to elevated CO2 (eCO2) are generally attributed to indirect improvements in plant water relations.
Edith J. Singini, Sally Archibald, Colin P. Osborne, Brad S. Ripley   +3 more
wiley   +1 more source

Multiplexed Nanosensors for Real‐Time Monitoring of VOC‐Mediated Signalling Response in Plants

Plant, Cell &Environment, EarlyView.
ABSTRACT To enhance crop performance, intercropping strategies leverage volatile organic compound (VOC)‐driven interactions with companion plants that constitutively emit VOCs. Despite the agricultural importance, the mechanisms and kinetics of VOC‐mediated sensory transduction in receiver plants eavesdropping on neighbouring non‐kin emitters remain ...
Mervin Chun‐Yi Ang, Jolly Madathiparambil Saju, Sayyid Mohaideen, Niha Dhar, Sarangapani Sreelatha, Sayuj Koyyappurath, Thomas K. Porter, Gabriel Sánchez‐Velázquez, Vaishnavi Reddy Amarr, Song Wang, Duc Thinh Khong, Suh In Loh, Michael S. Strano, Sarojam Rajani   +13 more
wiley   +1 more source

Structural, functional, and phylogenetic characterization of phosphoenolpyruvate carboxylase (PEPC) in C₄and CAM plants

Caryologia, 2018
Phosphoenolpyruvate carboxylase (PEPC; EC 4.1.1.31) is an enzyme in the family of carboxylyases found in plants and some bacteria, but not in fungi or animals.
Maryam Darabi, Samin Seddigh
openaire   +1 more source

Mitochondrial Respiratory Metabolism in Salt‐Stressed Barley (Hordeum vulgare): TCA Cycle Activation With Limited GABA Shunt Engagement

Plant, Cell &Environment, EarlyView.
ABSTRACT Plants maintain energy balance under salinity stress through increased respiration and energy use, processes also associated with reactive oxygen species generation. Although respiration imposes a high energy cost, mitochondrial respiration and the tricarboxylic acid (TCA) cycle activity are vital for ATP production and for providing electron ...
Ali Bandehagh, Nicolas L. Taylor
wiley   +1 more source

Biochar and K‐fertigation modulate stomatal behaviour, ion homeostasis and water use efficiency in waxy maize seedlings under salt stress

Journal of Agronomy and Crop Science, Volume 212, Issue 6, November 2026.
Efficacy of wheat straw biochar in alleviating salt stress under K‐fertigation via improved photosynthesis, water use efficiency and ion homeostasis in waxy maize. ABSTRACT K‐fertigation and soil amendment could ameliorate the adverse effects of saline stress on C4 crop physiology and performance, yet the underlying mechanisms remained largely elusive.
Chunshuo Liu, Zesen Gao, Jingxiang Hou, Heng Wan, Changtong Xu, Wentong Zhao, Manyi Zhang, Bingjing Cui, Guiyu Wei, Zhenhua Wei   +9 more
wiley   +1 more source

Extending the Farquhar–von Caemmerer–Berry photosynthesis model to account for various photorespiratory bypasses

New Phytologist, Volume 252, Issue 3, Page 1327-1342, November 2026.
We extend a widely used C3‐photosynthesis model to account for various photorespiratory bypasses, thereby, providing a useful resource and framework that enforces future novel bypass work and scrutinize if the results go counter to theory. Our model analyses show that of the 17 published bypass pathways, full‐decarboxylating bypasses (that have been ...
Xinyou Yin, Kaining Jin, Guoxin Chen, Tiegang Lu   +3 more
wiley   +1 more source