Results 121 to 130 of about 229,894 (397)

A potential cyanobacterial ancestor of Viridiplantae chloroplasts [PDF]

, 2011
The theory envisaging the origin of plastids from endosymbiotic cyanobacteria is well-established but it is difficult to explain the evolution (spread) of plastids in phylogenetically diverse plant groups.
Jaideb Chatterjee, Masrure Alam, Prabir Haldar, Prosenjit Pyne, Sabyasachi Bhattacharya, Wriddhiman Ghosh   +5 more
core   +1 more source

Phylogeny of Prokaryotes and Chloroplasts Revealed by a Simple Composition Approach on All Protein Sequences from Complete Genomes Without Sequence Alignment [PDF]

, 2005
The complete genomes of living organisms have provided much information on their phylogenetic relationships. Similarly, the complete genomes of chloroplasts have helped to resolve the evolution of this organelle in photosynthetic eukaryotes.
C Lemieux, CR Woese, CR Woese, D Sankoff, DH Moreira, E Chatton, E Mayr, E Pennisi, F Tekaia, FitchWM, GI McFadden, GI McFadden, GW Stuart, GW Stuart, J Adachi, J Las Rivas De, J Lin, J Qi, J Qi, J.Q. Deng, JA Eisen, JD Palmer, JR Brown, K.H. Chu, KH Chu, L.Q. Zhou, M Li, M Turmel, M Turmel, MA Ragan, MW Gray, MW Gray, N Saitou, O Weiss, RF Doolittle, RF Doolittle, RL Charlebois, RS Gupta, S.C. Long, ST Fitz-Gibbon, SV Edwards, V.V. Anh, VL Stirewalt, W Martin, W Martin, W Martin, Z.G. Yu, ZG Yu, ZG Yu, ZG Yu, ZG Yu   +50 more
core   +3 more sources

Hierarchical Superposition Framework Reveals the Complex Effects of Natural Medicine Formulas

Advanced Intelligent Systems, EarlyView.
A novel hierarchical superposition pharmacological model incorporates the principle of hierarchical structures from physics to simulate the spatiotemporal dynamics of drug combinations, to elucidate the universal law underlying drug combination effects. By modeling cross‐level causal transmission and attenuation, it advances beyond traditional additive
Weifeng Liang, Dingsi Xiang, Shengli Mi, Jiajun Huang   +3 more
wiley   +1 more source

Changes of leaf antioxidant system, photosynthesis and ultrastructure in tea plant under the stress of fluorine

Biologia Plantarum, 2011
Seedlings of Camellia sinensis were grown hydroponically for 30 d in order to study the effect of fluorine (F) on growth parameters, antioxidant defence system, photosynthesis and leaf ultrastructure. Fresh and dry mass, chlorophyll (Chl) content and net
C. Li, Y. Zheng, J. Zhou, J. Xu, D. Ni
doaj   +1 more source

Eine Perspektive zu interdisziplinären Ansätzen in der Chemotaxis(forschung)

Angewandte Chemie, EarlyView.
Chemotaxis ist die Bewegung individueller Agenten hin zu oder weg von einem chemischen Stimulus. Dieses Phänomen wird in den verschiedensten Fachbereichen untersucht, von Biologie hin zu Physik und auch im Ingenieurwesen. Dieses Perspektivpapier zielt darauf ab, neue Entwicklungen im Feld darzustellen und die Vereinheitlichung von Terminologie zu ...
Juliane Simmchen, Daniel Gordon, John MacKenzie, Ignacio Pagonabarraga, Christina C. Roggatz, Robert G. Endres, Zuyao Xiao, Benjamin M. Friedrich, Tian Qiu, Kevin J. Painter, Ramin Golestanian, Claudia Contini, Mehmet Can Ucar, Gilad Yossifon, Jens Uwe Sommer, Wouter‐Jan Rappel, Kirsty Y. Wan, Judith Armitage, Robert Insall   +18 more
wiley   +1 more source

Toc75‐V/OEP80 is processed during translocation into chloroplasts, and the membrane‐embedded form exposes its POTRA domain to the intermembrane space

FEBS Open Bio, 2020
The insertion of membrane proteins requires proteinaceous complexes in the cytoplasm, the membrane, and the lumen of organelles. Most of the required complexes have been described, while the components for insertion of β‐barrel‐type proteins into the ...
Lucia E. Gross, Nicole Spies, Stefan Simm, Enrico Schleiff   +3 more
doaj   +1 more source

The chloroplast import receptor Toc34 functions as preprotein-regulated GTPase [PDF]

, 2002
Toc34 is a protein of the chloroplast outer envelope membrane that acts as receptor for preproteins containing a transit sequence. The recognition of preproteins by Toc34 is regulated by GTP binding and phosphorylation.
Hörth, P., Jelic, M., Motzkus, M., Schleiff, E., Soll, J., Sveshnikova, N.   +5 more
core   +1 more source

Perspective on Interdisciplinary Approaches on Chemotaxis

Angewandte Chemie International Edition, EarlyView.
Chemotaxis is the movement of individual organisms towards or away from a chemical stimulus. This phenomenon is investigated in various disciplines, ranging from biology to physics and even engineering. This perspective aims to summarise recent developments in the field and encourage the unification of terminology to promote interdisciplinary knowledge
Juliane Simmchen, Daniel Gordon, John MacKenzie, Ignacio Pagonabarraga, Christina C. Roggatz, Robert G. Endres, Zuyao Xiao, Benjamin M. Friedrich, Tian Qiu, Kevin J. Painter, Ramin Golestanian, Claudia Contini, Mehmet Can Ucar, Gilad Yossifon, Jens Uwe Sommer, Wouter‐Jan Rappel, Kirsty Y. Wan, Judith Armitage, Robert Insall   +18 more
wiley   +1 more source

DNA metabarcoding reveals greater plant diversity than morphological seed analysis of bird feces

Applications in Plant Sciences, EarlyView.
Abstract Premise Fruit‐eating birds drive seed dispersal in recovering tropical ecosystems, shaping forest regeneration. Molecular techniques, such as DNA metabarcoding, enable diet analysis from feces and can provide complementary frugivory data where dispersal is infrequent, as well as aid in seed identification in hyper‐diverse regions lacking ...
Carina I. Motta, Bruno H. Saranholi, Vinicius Marciano De Godoy, Marina Corrêa Côrtes   +3 more
wiley   +1 more source

Comparative Photosynthetic Capacity, Respiration Rates, and Nutrient Content of Micropropagated and Wild-Sourced Sphagnum

International Journal of Plant Biology
The rapid, effective restoration of degraded peatlands is urgently needed to reduce their current high levels of carbon loss. The re-introduction of Sphagnum moss, along with re-wetting, is key to returning carbon sequestration and retention capabilities
Anna T. Keightley, Chris D. Field, James G. Rowson, Simon J. M. Caporn   +3 more
doaj   +1 more source