Engineering of the aspartate family biosynthetic pathway in barley (Hordeum vulgare L.) by transformation with heterologous genes encoding feed-back-insensitive aspartate kinase and dihydrodipicolinate synthase

1996 ◽  
Vol 32 (4) ◽  
pp. 611-620 ◽  
Author(s):  
Henrik Brinch-Pedersen ◽  
Gad Galili ◽  
S�ren Knudsen ◽  
Preben B. Holm
Keyword(s):  
Hordeum Vulgare ◽  
Biosynthetic Pathway ◽  
Aspartate Kinase ◽  
Dihydrodipicolinate Synthase ◽  
Hordeum Vulgare L ◽  
Genes Encoding ◽  
Aspartate Family

scholarly journals Analysis of photocontrol of aspartate kinase in barley (Hordeum vulgare L.) seedlings

IUBMB Life ◽  
1999 ◽  
Vol 47 (3) ◽  
pp. 347-360
Author(s):  
S. S. Rao ◽  
S. Kochhar ◽  
V. K. Kochhar
Keyword(s):  
Hordeum Vulgare ◽  
Aspartate Kinase ◽  
Hordeum Vulgare L

scholarly journals Properties and Regulation of Aspartate Kinase from Barley Seedlings (Hordeum vulgare L.)

1977 ◽  
Vol 59 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Peter R. Shewry ◽  
Benjamin J. Miflin
Keyword(s):  
Hordeum Vulgare ◽  
Aspartate Kinase ◽  
Hordeum Vulgare L

Ultrastructure and Senescence in an Achloroplastic Mutant of Hordeum vulgare L. cv. Dyan

1992 ◽  
Vol 50 (1) ◽  
pp. 844-845
Author(s):  
R.H.M. Cross ◽  
C.E.J. Botha ◽  
A.K. Cowan ◽  
B.J. Hartley
Keyword(s):  
Cell Wall ◽  
Hordeum Vulgare ◽  
Leaf Tissue ◽  
Ultrastructural Changes ◽  
Hordeum Vulgare L ◽  
Mesophyll Cells ◽  
Lethal Mutant ◽  
Cytoplasmic Matrix ◽  
Close Proximity ◽  
Pinocytotic Vesicles

Senescence is an ordered degenerative process leading to death of individual cells, organs and organisms. The detection of a conditional lethal mutant (achloroplastic) of Hordeum vulgare has enabled us to investigate ultrastructural changes occurring in leaf tissue during foliar senescence.Examination of the tonoplast structure in six and 14 day-old mutant tissue revealed a progressive degeneration and disappearance of the membrane, apparently starting by day six in the vicinity of the mitochondria associated with the degenerating proplastid (Fig. 1.) where neither of the plastid membrane leaflets is evident (arrows, Fig. 1.). At this stage there was evidence that the mitochondrial membranes were undergoing retrogressive changes, coupled with disorganization of cristae (Fig. 2.). Proplastids (P) lack definitive prolamellar bodies. The cytoplasmic matrix is largely agranular, with few endoplasmic reticulum (ER) cisternae or polyribosomal aggregates. Interestingly, large numbers of actively-budding dictysomes, associated with pinocytotic vesicles, were observed in close proximity to the plasmalemma of mesophyll cells (Fig. 3.). By day 14 however, mesophyll cells showed almost complete breakdown of subcellular organelle structure (Fig. 4.), and further evidence for the breakdown of the tonoplast. The final stage of senescence is characterized by the solubilization of the cell wall due to expression and activity of polygalacturonase and/or cellulose. The presence of dictyosomes with associated pinocytotic vesicles formed from the mature face, in close proximity to both the plasmalemma and the cell wall, would appear to support the model proposed by Christopherson for the secretion of cellulase. This pathway of synthesis is typical for secretory glycoproteins.

ИЗМЕНЧИВОСТЬ ЯЧМЕНЯ (Hordeum vulgare L.) РАЗНОГО ГЕОГРАФИЧЕСКОГО ПРОИСХОЖДЕНИЯ ПО ЭЛЕМЕНТАМ СТРУКТУРЫ УРОЖАЯ

2012 ◽  
pp. 33-40
Author(s):  
А.В. ЖЕЛЕЗНОВ ◽  
◽  
Н.Б. ЖЕЛЕЗНОВА ◽  
Т.В. КУКОЕВА ◽  
Н.В. БУРМАКИНА ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Hordeum Vulgare L

ВНУТРИВИДОВОЙ ПОЛИМОРФИЗМ ЯРОВОГО ЯЧМЕНЯ (Hordeum vulgare L.) ПО УСТОЙЧИВОСТИ К ДЕЙСТВИЮ СВИНЦА

2014 ◽  
pp. 78-87 ◽  
Author(s):  
А.В. ДИКАРЕВ ◽  
◽  
В.Г. ДИКАРЕВ ◽  
Н.С. ДИКАРЕВА ◽  
С.А. ГЕРАСЬКИН ◽  
...  
Keyword(s):  
Hordeum Vulgare ◽  
Hordeum Vulgare L
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