Changes in the capacity for protein-synthesis in embryonic axes of hazel fruits during the breaking of dormancy by GA3

Planta ◽  
1971 ◽  
Vol 101 (2) ◽  
pp. 174-179 ◽  
Author(s):  
B. C. Jarvis ◽  
C. Hunter
Keyword(s):  
Protein Synthesis ◽  
Embryonic Axes

Changes in protein synthesis in embryonic axes after long-term storage of maize seeds

1992 ◽  
Vol 2 (4) ◽  
pp. 191-198
Author(s):  
R. Aguilar ◽  
E. Reynoso ◽  
M. Albores ◽  
E. Sánchez de Jiménez
Keyword(s):  
Amino Acids ◽  
Cell Wall ◽  
Protein Synthesis ◽  
Seed Storage ◽  
Specific Cell ◽  
Embryonic Axes ◽  
Maize Seeds ◽  
Long Term Storage ◽  
Layer Chromatography

AbstractThe aim of this work was to analyse the capacity for protein synthesis in embryonic axes from long-term-stored maize seeds, including the role of proline. Embryonic axes from seeds stored for 13 years (S) and non-stored seeds (NS) were incubated in nutrient media after application of [14C]proline. Transformation of [14C]proline into other amino acids was analysed by thin-layer chromatography. After 6 h of incubation, no other labelled amino acids were found. Incorporation of 14C into total soluble and cell-wall (proline-rich) proteins was assessed during this period. Incorporation of [14C]proline into specific cell-wall proteins was lower in S than in NS axes.Studies using [35S]methionine showed that protein synthesis was slower in axes of S than in NS seeds. Analyses of these proteins by gel electrophoresis and fluorography revealed qualitative differences between the [35S]methionine proteins synthesized by both types of axes. The NS: S ratios for the [35S]proteins were larger than those from the [14C]proline assays. These data may be interpreted as an indication of differential deterioration of transcription or translation in the axes during long-term seed storage.

scholarly journals On the Role of Stored mRNA in Protein Synthesis in Embryonic Axes of Germinating Vigna unguiculata Seeds

1985 ◽  
Vol 79 (2) ◽  
pp. 327-331 ◽  
Author(s):  
Yoshiharu Suzuki ◽  
Takao Minamikawa
Keyword(s):  
Protein Synthesis ◽  
Vigna Unguiculata ◽  
Embryonic Axes ◽  
Stored Mrna

Qualitative changes in protein content during cold and warm stratification of Norway maple (Acer platanoidesL.) seeds

1997 ◽  
Vol 7 (4) ◽  
pp. 385-390 ◽  
Author(s):  
Tomasz Pawlowski ◽  
Zofia Szczotka
Keyword(s):  
Protein Synthesis ◽  
Protein Content ◽  
Acer Platanoides ◽  
Embryonic Axes ◽  
Norway Maple ◽  
Qualitative Changes

AbstractProtein synthesis in embryonic axes of Norway maple (Acer platanoides) was studied in seeds stratified at 3 or 15°C. At 3°C stratification, germination of seeds started between 6 and 7 weeks; at 15°C stratification germination did not occur. During imbibition of embryonic axes undergoing cold and warm stratification many new proteins became visible. Two of these proteins may be connected with the release from dormancy at 3°C. In seeds stratified at 15°C, these proteins occur in low amounts or are completely absent.

A novel effect of 6-azauridine on growth and protein synthesis in wheat embryonic axes

1982 ◽  
Vol 215 (1) ◽  
pp. 140-147
Author(s):  
Shirley Rodaway ◽  
Ketaki Datta ◽  
Abraham Marcus
Keyword(s):  
Protein Synthesis ◽  
Embryonic Axes

The effect of soaking injury in bean seeds on protein synthesis in embryonic axes

1991 ◽  
Vol 1 (3) ◽  
pp. 195-197 ◽  
Author(s):  
Johan C. Pretorius ◽  
J. G. Chris Small
Keyword(s):  
Protein Synthesis ◽  
Phaseolus Vulgaris ◽  
Embryonic Axes ◽  
Saturated Water

AbstractThe capacity for protein synthesis in embryonic axes of Phaseolus vulgaris L. cv. Top Crop seeds was reduced markedly by soaking in airsaturated and CO2-saturated water. The former treatment induces soaking injury while the latter treatment prevents injury. After soaking, the capacity for protein synthesis in axes of seeds soaked in air-saturated water declined and the pattern of synthesis remained almost similar to that at the time of termination of soaking. However, the capacity and pattern of protein synthesis in axes of seeds soaked in CO2-saturated water recovered subsequent to soaking and approached that of non-soaked seeds.

Insulin‐stimulated ribosomal protein synthesis in maize embryonic axes during germination

1999 ◽  
Vol 105 (1) ◽  
pp. 148-154 ◽  
Author(s):  
Estela Sánchez de Jiménez ◽  
Elda Beltrán‐Peña ◽  
Adriana Ortíz‐López
Keyword(s):  
Protein Synthesis ◽  
Ribosomal Protein ◽  
Embryonic Axes ◽  
Ribosomal Protein Synthesis

Physiological changes in the early stages of germination of pea seeds induced by aging and by infection by a storage fungus, Aspergillus ruber

1976 ◽  
Vol 54 (1-2) ◽  
pp. 39-44 ◽  
Author(s):  
G. E. Harman ◽  
A. A. Khan ◽  
K. L. Tao
Keyword(s):  
Alkaline Phosphatase ◽  
Protein Synthesis ◽  
Amino Acid ◽  
Relative Humidity ◽  
Physiological Changes ◽  
Embryonic Axes ◽  
Storage Fungi ◽  
Storage Fungus ◽  
Pea Seeds ◽  
Reduced Activity

Pea seeds age rapidly and may be infected by storage fungi, e.g. Aspergillus ruber, when stored under conditions of high relative humidity and temperature (92% relative humidity and 30 °C in these experiments). In the absence of microorganisms, pea seeds retain their viability for 6 to 8 weeks, although the speed of germination is reduced. In embryonic axes, aging is associated with a slower increase in O2 uptake, a delay in protein synthesis, smaller ATP and amino acid pools, and reduced activity of alkaline phosphatase (EC 3.1.3.1) and 3-phosphoglyceraldelyde dehydrogenase (EC 1.2.1.12). Axes recover from these changes during germination. Infection by A. ruber reduces germination. In axes from infected peas the onset of protein synthesis is delayed even more and the ATP and amino acid pools are smaller than in aged axes. Axes from infected seeds recover slowly, if at all.

Homochirality as the Signature of Extra-Terrestrial Life

1997 ◽  
Vol 161 ◽  
pp. 505-510
Author(s):  
Alexandra J. MacDermott ◽  
Laurence D. Barron ◽  
Andrè Brack ◽  
Thomas Buhse ◽  
John R. Cronin ◽  
...  
Keyword(s):  
Amino Acids ◽  
Protein Synthesis ◽  
Optical Rotation ◽  
Physical Origin ◽  
Natural Choice ◽  
Rosetta Mission ◽  
Terrestrial Life ◽  
Subsurface Layers ◽  
Solar System Bodies ◽  
Origin Of Homochirality

AbstractThe most characteristic hallmark of life is its homochirality: all biomolecules are usually of one hand, e.g. on Earth life uses only L-amino acids for protein synthesis and not their D mirror images. We therefore suggest that a search for extra-terrestrial life can be approached as a Search for Extra- Terrestrial Homochirality (SETH). The natural choice for a SETH instrument is optical rotation, and we describe a novel miniaturized space polarimeter, called the SETH Cigar, which could be used to detect optical rotation as the homochiral signature of life on other planets. Moving parts are avoided by replacing the normal rotating polarizer by multiple fixed polarizers at different angles as in the eye of the bee. We believe that homochirality may be found in the subsurface layers on Mars as a relic of extinct life, and on other solar system bodies as a sign of advanced pre-biotic chemistry. We discuss the chiral GC-MS planned for the Roland lander of the Rosetta mission to a comet and conclude with theories of the physical origin of homochirality.

Lymphocyte activity and protein synthesis

2001 ◽  
Vol 101 (6) ◽  
pp. 591
Author(s):  
DEREK C. MACALLAN
Keyword(s):  
Protein Synthesis ◽  
Lymphocyte Activity
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