Results 1 to 10 of about 509,364 (314)

Phenotypic landscape inference reveals multiple evolutionary paths to C$_4$ photosynthesis [PDF]

eLife 2 e00961 (2013), 2014
C$_4$ photosynthesis has independently evolved from the ancestral C$_3$ pathway in at least 60 plant lineages, but, as with other complex traits, how it evolved is unclear. Here we show that the polyphyletic appearance of C$_4$ photosynthesis is associated with diverse and flexible evolutionary paths that group into four major trajectories.
Abramoff, Adams, Akyildiz, Aubry, Beebe, Brown, Brown, Bruhl, Bustin, Casati, Cheng, Christin, Christin, Christin, Christin, Christin, Devi, Devi, Edwards, Furbank, Gavrilets, Goldstein, Gowik, Griffiths, Hatch, Hattersley, Hattersley, Heckman, Hibberd, Hill, Holaday, Holaday, Holaday, Hylton, Johnson, Kajala, Keeley, Kennedy, Khoshravesh, Kidwell, Koteyeva, Kozmik, Ku, Ku, Ku, Ku, Langdale, Livak, Lobkovsky, McKown, McKown, Mooers, Moore, Muhaidat, Osborne, P’yankov, Rabiner, Rajendrudu, Rathnam, Rathnam, Rawsthorne, Rawsthorne, Revuz, Rosche, Roweis, Sage, Sage, Sage, Santos, Sayre, Slack, Smith, Steiner, Ueno, Ueno, Vicentini, Vogan, Voznesenskaya, Voznesenskaya, Voznesenskaya, Wasserman, Weinreich, Whibley, Williams, Wilson, Wiludda, Wittkopp, Wright, Zhu   +88 more
arxiv   +6 more sources

What limits photosynthesis? Identifying the thermodynamic constraints of the biosphere within the Earth system [PDF]

BBA - Bioenergetics 1862 (2021), 148303, 2020
Photosynthesis converts sunlight into the chemical free energy that feeds the Earth's biosphere, yet at levels much lower than what thermodynamics would allow for. I propose here that photosynthesis is nevertheless thermodynamically limited, but this limit acts indirectly on the material exchange of water and carbon dioxide.
Kleidon, Axel
arxiv   +3 more sources

Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds [PDF]

, 2007
As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a different parent star. We take planetary atmospheric compositions simulated by Segura, et al. (2003, 2005)
Antígona Segura, David Crisp, Giovanna Tinetti, Govindjee, , Janet Siefert, Leger A., Leger A., Martin Cohen, Nancy Y. Kiang, Robert E. Blankenship, Tucker C.J., Victoria S. Meadows, Wang A.   +12 more
arxiv   +3 more sources

Compact Representation of Photosynthesis Dynamics by Rule-based Models (Full Version) [PDF]

arXiv, 2014
Traditional mathematical models of photosynthesis are based on mass action kinetics of light reactions. This approach requires the modeller to enumerate all the possible state combinations of the modelled chemical species. This leads to combinatorial explosion in the number of reactions although the structure of the model could be expressed more ...
Brim, L., Niznan, J., Safranek, D.
arxiv   +4 more sources

Sun‐induced Chl fluorescence and its importance for biophysical modeling of photosynthesis based on light reactions

New Phytologist, 2019
Recent progress in observing sun-induced Chl fluorescence (SIF) provides an unprecedented opportunity to advance photosynthesis research in natural environments. However, we still lack an analytical framework to guide SIF studies and integration with the
Jimei Han, Christine Yao-yun Chang, Lianhong Gu   +2 more
exaly   +2 more sources

Analysis of state 1—state 2 transitions by genome editing and complementation reveals a quenching component independent from the formation of PSI-LHCI-LHCII supercomplex in Arabidopsis thaliana

Biology Direct, 2023
Background The light-harvesting antennae of photosystem (PS) I and PSII are pigment-protein complexes responsible of the initial steps of sunlight conversion into chemical energy.
Edoardo Andrea Cutolo, Roberto Caferri, Zeno Guardini, Luca Dall’Osto, Roberto Bassi   +4 more
doaj   +1 more source

Photosynthesis under stressful environments: An overview

Photosynthetica, 2013
M. Ashraf, Philip Harris
exaly   +2 more sources

Preparation of Photo-Bioelectrochemical Cells With the RC-LH Complex From Roseiflexus castenholzii

Frontiers in Microbiology, 2022
Roseiflexus castenholzii is an ancient green non-sulfur bacteria that absorbs the solar energy through bacteriochlorophylls (BChls) bound in the only light harvesting (LH) complex, and transfers to the reaction center (RC), wherein primary charge ...
Jinsong Du, Jiyu Xin, Jiyu Xin, Menghua Liu, Xin Zhang, Huimin He, Jingyi Wu, Xiaoling Xu, Xiaoling Xu   +8 more
doaj   +1 more source

Structural insights into photosystem II supercomplex and trimeric FCP antennae of a centric diatom Cyclotella meneghiniana

Nature Communications, 2023
Diatoms are dominant marine algae and contribute around a quarter of global primary productivity, the success of which is largely attributed to their photosynthetic capacity aided by specific fucoxanthin chlorophyll-binding proteins (FCPs) to enhance the
Songhao Zhao, Lili Shen, Xiaoyi Li, Qiushuang Tao, Zhenhua Li, Caizhe Xu, Cuicui Zhou, Yanyan Yang, Min Sang, Guangye Han, Long-Jiang Yu, Tingyun Kuang, Jian-Ren Shen, Wenda Wang   +13 more
doaj   +1 more source

Interaction of Light Intensity and CO2 Concentration Alters Biomass Partitioning in Chrysanthemum

Journal of Horticultural Research, 2021
Biomass partitioning is one of the pivotal determinants of crop growth management, which is influenced by environmental cues. Light and CO2 are the main drivers of photosynthesis and biomass production in plants. In this study, the effects of CO2 levels:
Hosseinzadeh Maral, Aliniaeifard Sasan, Shomali Aida, Didaran Fardad   +3 more
doaj   +1 more source