Results 41 to 50 of about 24,794 (198)
The Puzzle of Plastid Evolution [PDF]
Current Biology, 2009 A comprehensive understanding of the origin and spread of plastids remains an important yet elusive goal in the field of eukaryotic evolution. Combined with the discovery of new photosynthetic and non-photosynthetic protist lineages, the results of recent taxonomically broad phylogenomic studies suggest that a re-shuffling of higher-level eukaryote ...
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Frontiers in Plant Science, 2015 Plastids in the leaf epidermal cells of plants are regarded as immature chloroplasts that, like mesophyll chloroplasts, undergo binary fission. While mesophyll chloroplasts have generally been used to study plastid division, recent studies have suggested
Makoto T. Fujiwara +8 more
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Nectar defense and hydrogen peroxide in floral nectar of Cucurbita pepo
Acta Agrobotanica, 2015 This study was carried out to investigate some similarities between the nectaries of Nicotiana sp. and Cucurbita pepo, such as starch accumulation in the nectary parenchyma, changes in nectary color during maturation, and the production of a large ...
Daniele Nocentini +2 more
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On the nature of thiamine triphosphate in Arabidopsis
Plant Direct, 2020 Vitamin B1 is a family of molecules, the most renowned member of which is diphosphorylated thiamine (TDP)—a coenzyme vital for the activity of key enzymes of energy metabolism.
Manuel Hofmann +2 more
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Rethinking plastid evolution [PDF]
EMBO reports, 2010 How easy is it to acquire an organelle? How easy is it to lose one? These questions underpin the current debate about the evolution of the plastid—that is, chloroplast—the organelle of photosynthesis in eukaryotic cells. The origin of the plastid has been traced to an endosymbiosis between a eukaryotic host cell and a cyanobacterial symbiont, the ...
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Acta Societatis Botanicorum Poloniae, 2014 Three forms of glutamate synthase (NADH-GOGAT, NADPH-GOGAT and Fd-(ferredoxin) GOGAT) were found in the plastids and cytosol of Pisum arvense root cells.
Genowefa Kubik-Dobosz
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Plastid Envelope-Localized Proteins Exhibit a Stochastic Spatiotemporal Relationship to Stromules
Frontiers in Plant Science, 2018 Plastids in the viridiplantae sporadically form thin tubules called stromules that increase the interactive surface between the plastid and the surrounding cytoplasm.
Kathleen Delfosse +5 more
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A contemplation on the secondary origin of green algal and plant plastids
Acta Societatis Botanicorum Poloniae, 2014 A single origin of plastids and the monophyly of three “primary” plastid-containing groups – the Chloroplastida (or Viridiplantae; green algae+land plants), Rhodophyta, and Glaucophyta – are widely accepted, mainstream hypotheses that form the basis for ...
Eunsoo Kim, Shinichiro Maruyama
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Frontiers in Plant Science, 2020 Organisms that have lost their photosynthetic capabilities are present in a variety of eukaryotic lineages, such as plants and disparate algal groups. Most of such non-photosynthetic eukaryotes still carry plastids, as these organelles retain essential ...
Motoki Kayama +5 more
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Plastid intramembrane proteolysis
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2015 Progress in the field of regulated intramembrane proteolysis (RIP) in recent years has not surpassed plant biology. Nevertheless, reports on RIP in plants, and especially in chloroplasts, are still scarce. Of the four different families of intramembrane proteases, only two have been linked to chloroplasts so far, rhomboids and site-2 proteases (S2Ps ...
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