Results 61 to 70 of about 71,599 (337)

Organization, function and substrates of the essential Clp protease system in plastids.

Biochimica et Biophysica Acta, 2015
Intra-plastid proteolysis is essential in plastid biogenesis, differentiation and plastid protein homeostasis (proteostasis). We provide a comprehensive review of the Clp protease system present in all plastid types and we draw lessons from structural ...
K. Nishimura, K. V. van Wijk
semanticscholar   +1 more source

Phylogenomics and Biogeography of the Eastern Asian–Eastern North American Disjunct Genus Hylodesmum (Fabaceae)

Biological Diversity, EarlyView.
Integrating data from plastid genomes, nrDNA, and 353 low‐copy nuclear genes, this study establishes a robust phylogenetic framework for Hylodesmum. This framework supports a taxonomic revision recognizing 18 species and reveals a complex pattern of bidirectional EA–ENA dispersal, with mammals as a plausible dispersal agent. ABSTRACT Phylogenomics with
Zhuqiu Song, Gang Yao, Chen Ren, Kaiwen Jiang, Dongxian Xu, Shijin Li   +5 more
wiley   +1 more source

Ultrastructural changes during megasporogenesis in Epipactis (Orchidaceae)

Acta Societatis Botanicorum Poloniae, 2014
Plastids were temporarily localized within the micropylar portion of the early first prophase Epipactis meiocyte. Some of these plastids were observed in close proximity to the nuclear envelope.
Józef Bednara, Mieczysław Kuraś, Bohdan Rodkiewicz   +2 more
doaj   +1 more source

Nectar and oleiferous trichomes as floral attractants in Bulbophyllum saltatorium Lindl. (Orchidaceae) [PDF]

, 2017
Although many Orchidaceae have deceit flowers that produce no reward, the most common reward, when present, is nectar. Bulbophyllum, however, is unusual in that the labellar secretions of most species investigated to date lack sugars, and, therefore ...
Davies, Kevin L., Płachno, Bartosz, Stpiczyńska, Małgorzata   +2 more
core   +1 more source

Updating algal evolutionary relationships through plastid genome sequencing: did alveolate plastids emerge through endosymbiosis of an ochrophyte?

Scientific Reports, 2015
Algae with secondary plastids of a red algal origin, such as ochrophytes (photosynthetic stramenopiles), are diverse and ecologically important, yet their evolutionary history remains controversial.
T. Ševčíková, A. Horák, V. Klimeš, Veronika Zbránková, Elif Demir-Hilton, S. Sudek, J. Jenkins, J. Schmutz, P. Pribyl, J. Fousek, Č. Vlček, B. Lang, M. Oborník, A. Worden, M. Eliáš   +14 more
semanticscholar   +1 more source

Historical Climatic Fluctuations and Geographic Isolation Shaped the Phylogeographic Patterns of a Mycoheterotrophic Species in Subtropical China

Biological Diversity, EarlyView.
Plastome and microsatellite data reveal strong population structure but low genetic diversity in the fully mycoheterotrophic herb Burmannia nepalensis across subtropical China. Multiple glacial refugia and recent population decline highlight the roles of geographic isolation, climatic history, and human disturbance in shaping the biodiversity of ...
Miaomiao Shi, Tong Zeng, Zhongtao Zhao, Xiaojuan Li, Xiangping Wang, Shiran Gu, Shijin Li, Tieyao Tu, Dianxiang Zhang   +8 more
wiley   +1 more source

Plastids and mitochondria comportment in dividing meiocytes of Psilotum nudum

Acta Societatis Botanicorum Poloniae, 2014
In prophase I meiocyte plastids and mitochondria were situated at random. By telophase I plastids and mitochondria were aggregated in an equatorial plane.
D. Tchórzewska, V. B. Brukhin, J. Bednara   +2 more
doaj   +1 more source

Complex Plastids and the Evolution of the Marine Phytoplankton

Journal of Marine Science and Engineering, 2023
Photosynthesis allows for the formation of biomass from inorganic carbon and therefore greatly enhances the amount of organic material on planet Earth.
Ansgar Gruber, Linda K. Medlin
doaj   +1 more source

Arabidopsis AUGMIN8 Contains Two Independent Microtubule Association Domains

Cytoskeleton, EarlyView.
ABSTRACT Plant cells create a plasma membrane‐associated network of microtubules that are nucleated by γ‐tubulin ring complexes primarily through microtubule‐dependent microtubule nucleation (MDMN). This dynamic array organizes into specific patterns in response to developmental and environmental cues to influence primary cell wall construction.
Naveen K. Chana, Timothy Cioffi, Sidney L. Shaw   +2 more
wiley   +1 more source

Isolation of Carrot Chromoplasts and Assessment of Their Carotenoid Content and Bioaccessibility

Molecules
The bioaccessibility (fraction of compounds released from the food matrix and available for absorption) and carotenoid content of carrot chromoplasts obtained through high-speed centrifugation using sucrose gradients were assessed.
Ana M. Benítez-González, Lourdes Gómez-Gómez, Oussama Ahrazem, Patricia Esquivel, Carla M. Stinco, Antonio J. Meléndez-Martínez   +5 more
doaj   +1 more source