PH-dependent cell–cell interactions in the green alga Chara
نویسندگان
چکیده
منابع مشابه
Convoluted Plasma Membrane Domains in the Green Alga Chara are Depleted of Microtubules and Actin Filaments
Charasomes are convoluted plasma membrane domains in the green alga Chara australis. They harbor H(+)-ATPases involved in acidification of the medium, which facilitates carbon uptake required for photosynthesis. In this study we investigated the distribution of cortical microtubules and cortical actin filaments in relation to the distribution of charasomes. We found that microtubules and actin ...
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Short-term cytosolic pH regulation has three components: H(+) binding by buffering groups; H(+) transport out of the cytosol; and H(+) transport into the vacuole. To understand the large differences plants show in their tolerance to acidic environments, these three components were quantified in the acidophilic unicellular green alga Eremosphaera viridis. Intracellular pH was recorded using ion-...
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Kinetic investigations of stimulus response coupling in the green alga Chara have revealed that an intermediate second messenger is formed in the process of membrane excitation. This second messenger links electrical stimulation to the mobilization of Ca from internal stores. In the present work, the experimentally based kinetic model, which describes the stimulus-dependent production of the se...
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BACKGROUND AND AIMS The production of multicellular gametangia in green plants represents an early evolutionary development that is found today in all land plants and advanced clades of the Charophycean green algae. The processing of cell walls is an integral part of this morphogenesis yet very little is known about cell wall dynamics in early-divergent green plants such as the Charophycean gre...
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The blue-green alga Coccochloris peniocystis photosynthesizes optimally over the pH range of 7.0 to 10.0, but the O(2)-evolution rate is inhibited below pH 7.0 and ceases below pH 5.25. Measurement of the inorganic carbon pool in this alga in the light, using the silicone-fluid filtration technique demonstrated that the rate of accumulation of dissolved inorganic carbon remained relatively cons...
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ژورنال
عنوان ژورنال: Protoplasma
سال: 2019
ISSN: 0033-183X,1615-6102
DOI: 10.1007/s00709-019-01392-0