Results 51 to 60 of about 64,640 (280)

Natural Regulation of Energy Flow in a Green Quantum Photocell

, 2015
Manipulating the flow of energy in nanoscale and molecular photonic devices is of both fundamental interest and central importance for applications in light harvesting optoelectronics.
Aji, Vivek, Arp, Trevor B., Barlas, Yafis, Gabor, Nathaniel M.   +3 more
core   +2 more sources

Regeneration of Ribulose 1,5-bisphosphate and Ribulose 1,5-bisphosphate carboxylase/oxygenase Activity Associated with Lack of Oxygen Inhibition of Photosynthesis at Low Temperature [PDF]

, 2017
The nature of the lack of oxygen inhibition of C3-photosynthesis at low temperature was investigated in white clover (Trifolium repens L.). Detached leaves were brought to steady-state photosynthesis in air (34 Pa p(CO2), 21 kPa p(O2), balance N2) at ...
MÄCHLER, F., NÖSBERGER, J., SCHNYDER, H.   +2 more
core  

Steady-State and Oscillating Photosynthesis by a Starchless Mutant of Nicotiana sylvestris [PDF]

Plant Physiology, 1990
The photosynthetic characteristics of wild type Nicotiana sylvestris (Speg. et Comes) were compared with those of a ;starch-less' mutant NS458 that contains a defective plastid phosphoglucomutase (EC 2.1.5.1) (KR Hanson, NA McHale [1988] Plant Physiol 88: 838-844). The steady-state rate of net CO(2) assimilation (A) was studied as a function of [CO(2)],
openaire   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Models and measurements of energy-dependent quenching. [PDF]

, 2013
Energy-dependent quenching (qE) in photosystem II (PSII) is a pH-dependent response that enables plants to regulate light harvesting in response to rapid fluctuations in light intensity.
Amarnath, Kapil, FLEMING, Graham R, Sylak-Glassman, Emily, Zaks, Julia   +3 more
core   +1 more source

Dammarenediol II enhances etoposide‐induced apoptosis by targeting O‐GlcNAc transferase and Akt/GSK3β/mTOR signaling in liver cancer

Molecular Oncology, EarlyView.
Etoposide induces DNA damage, activating p53‐dependent apoptosis via caspase‐3/7, which cleaves PARP1. Dammarenediol II enhances this apoptotic pathway by suppressing O‐GlcNAc transferase activity, further decreasing O‐GlcNAcylation. The reduction in O‐GlcNAc levels boosts p53‐driven apoptosis and influences the Akt/GSK3β/mTOR signaling pathway ...
Jaehoon Lee, Byung‐Cheol Han, Gi‐Bang Koo, Jihye Park, Mijin Kwon, Young Bin Park, Jae‐Mun Choi, Seung‐Ho Lee, Sangho Roh   +8 more
wiley   +1 more source

Effects of Red and Blue Light on the Growth, Photosynthesis, and Subsequent Growth under Fluctuating Light of Cucumber Seedlings

Plants
The effects of red and blue light on growth and steady-state photosynthesis have been widely studied, but there are few studies focusing on dynamic photosynthesis and the effects of LED pre-treatment on cucumber seedlings’ growth, so in this study ...
Tengqi Wang, Qiying Sun, Yinjian Zheng, Yaliang Xu, Binbin Liu, Qingming Li   +5 more
doaj   +1 more source

Photosynthetic light‐use efficiency of rice leaves under fluctuating incident light

Agrosystems, Geosciences & Environment, 2020
The responsiveness of photosynthesis to continuously fluctuating light intensities can provide an estimate of the net assimilation rate (A) and photosynthetic light‐use efficiency (PLUE), which cannot be measured under steady‐state conditions. This study
Kenichi Tatsumi, Yoshiki Kuwabara, Takashi Motobayashi   +2 more
doaj   +1 more source

Does Fluctuating Light Affect Crop Yield? A Focus on the Dynamic Photosynthesis of Two Soybean Varieties

Frontiers in Plant Science, 2022
In natural environments, plants are exposed to variable light conditions, but photosynthesis has been mainly studied at steady state and this might overestimate carbon (C) uptake at the canopy scale.
Nicole Salvatori, Nicole Salvatori, Giorgio Alberti, Giorgio Alberti, Onno Muller, Alessandro Peressotti   +5 more
doaj   +1 more source

High potential for weathering and climate effects of non-vascular vegetation in the Late Ordovician [PDF]

, 2016
It has been hypothesized that predecessors of today’s bryophytes significantly increased global chemical weathering in the Late Ordovician, thus reducing atmospheric CO2 concentration and contributing to climate cooling and an interval of glaciations ...
A Boucot, A Herrmann, A Ito, A Pohl, AE Bartholomé, B Fletcher, B Weber, C Beer, C Buendía, C Humphreys, C Wellman, C Yapp, C Zambell, D Edwards, D McCarroll, E Raevskaya, E Van Der Heijden, F Hourdin, G Bluth, J Belnap, J Chen, J Gaillardet, J Jauhiainen, J Moncrieff, J Quirk, J Silvola, J Veizer, K Field, K Moulton, K Sharma, L Kump, L Reinhold, M Cochran, M Heijmans, M Sonesson, N Bergman, N Carvalhais, P Amiotte Suchet, P Brady, P Kenrick, P Porada, P Porada, P Strother, PA Suchet, R Aghamiri, R Berner, R Berner, R Berner, R Botting, R Eckstein, R Honegger, R Pavlick, R Stretch, S Arens, T Jackson, T Jackson, T Lenton, W Elbert, W Pitman, X Yuan, Z Tuba   +60 more
core   +3 more sources