scholarly journals Newly Formed Vacuoles in Root Meristems of Barley and Pea Seedlings Have Characteristics of Both Protein Storage and Lytic Vacuoles

2007 ◽  
Vol 145 (4) ◽  
pp. 1383-1394 ◽  
Author(s):  
Andrea Olbrich ◽  
Stefan Hillmer ◽  
Giselbert Hinz ◽  
Peter Oliviusson ◽  
David G. Robinson
Keyword(s):  
Protein Storage ◽  
Root Meristems ◽  
Pea Seedlings ◽  
Lytic Vacuoles

Cell division and DNA topisomerase I activity in root meristems of pea seedlings during water stress

1997 ◽  
Vol 131 (3) ◽  
pp. 163-173 ◽  
Author(s):  
D. CHIATANTE ◽  
M. ROCCO ◽  
L. MAIURO ◽  
G. S. SCIPPA ◽  
C. DI MARTINO ◽  
...  
Keyword(s):  
Cell Division ◽  
Water Stress ◽  
Root Meristems ◽  
Pea Seedlings

The Trafficking Machinery of Lytic and Protein Storage Vacuoles: How Much is Shared and How Much is Distinct?

2021 ◽  
Author(s):  
Xiuxiu Zhang ◽  
Hui Li ◽  
Hai Lu ◽  
Inhwan Hwang
Keyword(s):  
Protein Trafficking ◽  
Molecular Mechanisms ◽  
Protein Storage ◽  
Protein Storage Vacuoles ◽  
Protein Storage Vacuole ◽  
Lytic Vacuoles ◽  
Lytic Vacuole ◽  
The Relationship ◽  
Storage Vacuole ◽  
Made In

Abstract Plant cells contain two types of vacuoles, the lytic vacuole and the protein storage vacuole. Lytic vacuoles (LVs) are present in vegetative cells, whereas protein storage vacuoles (PSVs) are found in seed cells. The physiological functions of the two vacuole types differ. Newly synthesized proteins must be transported to these vacuoles via protein trafficking through the endomembrane system for them to function. Recently, significant advances have been made in elucidating the molecular mechanisms of protein trafficking to these organelles. Despite these advances, the relationship between the trafficking mechanisms in LV and PSVs remains unclear. Some aspects of the trafficking mechanisms are common to both organelles, but certain aspects are specific to trafficking to either LV or PSVs. In this review, we summarize recent findings on the components involved in protein trafficking to both LV and PSVs and compare them to examine the extent of overlap in the trafficking mechanisms. In addition, we discuss the interconnection between the LV and PSVs in protein trafficking machinery and the implication in the identity of these organelles.

Vacuolar processing enzymes in protein-storage vacuoles and lytic vacuoles

1998 ◽  
Vol 152 (6) ◽  
pp. 668-674 ◽  
Author(s):  
Ikuko Hara-Nishimura ◽  
Tetsu Kinoshita ◽  
Nagako Hiraiwa ◽  
Mikio Nishimura
Keyword(s):  
Protein Storage ◽  
Processing Enzymes ◽  
Protein Storage Vacuoles ◽  
Lytic Vacuoles

The Influence of Ultra-Low Concentrations of Potassium Anphen on the Bioenergetic Characteristics of Mitochondria

2020 ◽  
Vol 16 (4) ◽  
pp. 537-542
Author(s):  
Zhigacheva Irina ◽  
Volodkin Aleksandr ◽  
Rasulov Maksud
Keyword(s):  
Functional State ◽  
Membrane Lipids ◽  
Biological Effects ◽  
Dose Dependence ◽  
Stress Factors ◽  
Mitochondrial Membranes ◽  
Oxidation Rates ◽  
Pea Seedlings ◽  
Low Concentrations ◽  
Wide Range

Background: One of the main sources of ROS in stress conditions is the mitochondria. Excessive generation of ROS leads to oxidation of thiol groups of proteins, peroxidation of membrane lipids and swelling of the mitochondria. In this regard, there is a need to search for preparationsadaptogens that increase the body's resistance to stress factors. Perhaps, antioxidants can serve as such adaptogens. This work aims at studying the effect of antioxidant; the potassium anphen in a wide range of concentrations on the functional state of 6 day etiolated pea seedlings mitochondria (Pisum sativum L). Methods: The functional state of mitochondria was studied per rates of mitochondria respiration, by the level of lipid peroxidation and study of fatty acid composition of mitochondrial membranes by chromatography technique. Results: Potassium anphen in concentrations of 10-5 - 10-8 M and 10-13-10-16 prevented the activation of LPO in the mitochondrial membranes of pea seedlings, increased the oxidation rates of NAD-dependent substrates and succinate in the respiratory chain of mitochondria that probably pointed to the anti-stress properties of the drug. Indeed, the treatment of pea seeds with the preparation in concentrations of 10-13 M prevented the inhibition of growth of seedlings in conditions of water deficiency. Conclusion: It is assumed that the dose dependence of the biological effects of potassium anphen and the manifestation of these effects in ultra-low concentrations are due to its ability in water solutions to form a hydrate containing molecular ensembles (structures).

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