Cytoplasmic osmoticum

Author: kwwy

August undefined, 2024

WebJan 1, 2010 · Potassium (K) is the most abundant inorganic cation in plants. It is required for the activation of many enzymes, as a cellular osmoticum for rapidly expanding cells, and as a counter cation for anion accumulation and electrogenic transport processes. This chapter describes (1) the symptoms of potassium deficiency and the acclimatory … WebJul 1, 1984 · Thus mannitol is not suitable as an osmoticum in osmotic adjustment experiments in these root tissues. Mannitol flows appear to be passive. Permeability to mannitol (about 10−10 m s−1 is greater at the plasmalemma than at the tonoplast in carrot, and this would tend to cause the cytoplasm to swell.

Osmophile - Wikipedia

WebFor purification, the protoplasts suspended in osmoticum are centrifuged using sucrose (20%) solution. The viable protoplasts float on the top surface of sucrose solution forming … WebIn plants, it can be accumulated at high concentrations in vacuoles, where it is used as osmoticum. Na(+) is not an essential element in most plants, except in some … sharon cole md findlay

Protoplast - an overview ScienceDirect Topics

WebThe results are considered to support the hypothesis that glycinebetaine acts as a cytoplasmic osmoticum to balance high vacuolar salt levels in certain halophytes. An … WebThe initial stage of isolation requires plasmolysis of the cells by a suitable osmoticum, and in enzymatic isolation, a mixture of cell wall-degrading enzymes. The solution contains mannitol as an osmoticum and a mixture of cellulases, hemicellulases, and pectinases. WebProline accumulation was observed in shoot tissues with suboptimal water contents. High glycinebetaine contents were found in the shoots of both species. These correlated closely with the sap osmotic pressure and it is suggested that glycinebetaine is the major cytoplasmic osmoticum (with K + salts) in these population of townsville 2023

Frontiers Regulation of K+ Nutrition in Plants Plant Science

Webthe cytoplasmic osmoticum in water-stressed plants (Wyn Jones, Storey, Leigh, Ahmad, and Pollard, 1977). Glycinebetaine was, therefore, of possible relevance to the vigour phenomenon. MATERIALS AND METHODS Plant material. Wheat seed from pure lines of the cultivars Maris Huntsman and Atou were given by Dr. D. A. Doling WebThe osmeterium is a defensive organ found in all papilionid larvae, in all stages. The organ is situated in the prothoracic segment and can be everted when the larva feels … population of towns in scotlandWebFor purification, the protoplasts suspended in osmoticum are centrifuged using sucrose (20%) solution. The viable protoplasts float on the top surface of sucrose solution forming a band. These protoplasts are then collected, re-suspended in … population of towns in northern ireland

"WebThe initial stage of isolation requires plasmolysis of the cells by a suitable osmoticum, and in enzymatic isolation, a mixture of cell wall-degrading enzymes. The solution contains … " - Cytoplasmic osmoticum

Cytoplasmic osmoticum

Webis an inert and nontoxic cytoplasmic osmoticum that helps to maintain osmotic equilibrium between the cytoplasm and the vacuole as the vacuolar solute potential is lowered by salt accu-mulation (6, 15, 20, 21). High betaine levels in sugar beet roots are undesirable to the beet sugar industry because betaine interferes WebMay 10, 2007 · As cytoplasmic osmoticum, proline counteracts the effect of salt accumulated within the cell vacuole (Steward and Lee, 1974) and protects cytoplasmic enzymes from high ionic concentration within the cell (Greenway and Munns, 1980). Different strategies are in progress for the development of NaCl-tolerant plants.

Did you know?

Webto the cytoplasm of salt-grown plants and were ana lysed by transmission analytical electron microscopy. The results are considered to support the hypothesis that glycinebetaine … WebJul 31, 2014 · B) Osmoticum: Protoplast released directly into standard cell culture medium will burst Broadly refers to the reagents/chemicals that are added to increase the osmotic pressure of a liquid. Isolation and culture of protoplast require osmotic protection until they develop a strong cell wall.

WebMay 27, 2003 · In this and following figures, upward traces indicate current flowing from the vacuole into the cytoplasmic side. The bath (cytosolic side) contained 10-6 MCa 2+ in … WebNational Center for Biotechnology Information

WebThus mannitol is not suitable as an osmoticum in osmotic adjustment experiments in these root tissues. Mannitol flows appear to be passive. Permeability to mannitol (about 10 −10 m s −1 is greater at the plasmalemma than at the tonoplast in carrot, and this would tend to cause the cytoplasm to swell. The implications for the control of ... WebJan 1, 2016 · This compound is known to act as a cytoplasmic osmoticum in certain halophytes during salt stress (Harborne et al. 1999). Catalpol from Veronica anagallis-aquatica. Veronica anagallis-aquatica is a species of flowering plant in the plantain family known by the common names water ...

WebNov 4, 2003 · To better understand the biophysical basis of osmoprotection by glycine betaine (GB) and the roles of cytoplasmic osmolytes, water, and macromolecular …

WebSome evidence suggests that the differences in the organic osmoticum used may relate to the different inorganic ion contents of the plants. The accumulation of nitrogen dipoles as cytoplasmic osmotica may make heavy demands on the nitrogen economy of the plants and this problem is discussed briefly. sharon cole vsim mental healthWebJan 1, 1979 · The possible significance of the use of glycinebetaine is discussed as this solute may be the physiological cytoplasmic osmoticum in members of the … population of trafalgar inWebcytoplasmic osmoticum when decreased osmotic potentials are required. In some other plant species proline may fulfil a similar function. Another quater-nary ammonium … population of towns in monroe county nyWebOral squamous cell carcinoma (OSCC) is the most commom cancer in the world. If remain untreated for several years, it may be fatal. Hence, it is important to prevent and treat … sharon collierWebOct 30, 2008 · To perform C4, the mature cells have two cytoplasmic compartments consisting of a central (CCC) and a peripheral (PCC) domain containing dimorphic chloroplasts which are interconnected by cytoplasmic channels. ... (using 1.25 M glycine as osmoticum). However, with stepwise decrease in osmoticum, which is expected to … sharon cole case study quizWebMay 27, 2003 · Ca2+ is released from the vacuole into the yeast cytoplasm on an osmotic upshock, but how this upshock is perceived was unknown. ... pH 6.0. We have experimented with different methods of changing bath osmolarity. For exploration, an osmoticum in stock solution was gently added to the bath with a micropipet within 1 cm … sharon collier obituary des moines iaWebSome evidence suggests that the differences in the organic osmoticum used may relate to the different inorganic ion contents of the plants. The accumulation of nitrogen dipoles as … sharon collier obituary