scholarly journals Inhibition of Starch Biosynthesis by Antisense Expression of cDNAs Encoding ADP-Glucose Pyrophosphorylase Small Subunit in Sweetpotato

2007 ◽  
Vol 34 (4) ◽  
pp. 277-283
Author(s):  
Sung-Ran Min ◽  
Jung-Myung Bae ◽  
Chee-Hark Harn ◽  
Won-Joong Jeong ◽  
Young-Bok Lee ◽  
...  
Keyword(s):  
Small Subunit ◽  
Starch Biosynthesis ◽  
Antisense Expression ◽  
Adp Glucose Pyrophosphorylase

scholarly journals A Low-Starch Barley Mutant, Risø 16, Lacking the Cytosolic Small Subunit of ADP-Glucose Pyrophosphorylase, Reveals the Importance of the Cytosolic Isoform and the Identity of the Plastidial Small Subunit

2003 ◽  
Vol 131 (2) ◽  
pp. 684-696 ◽  
Author(s):  
Philip E. Johnson ◽  
Nicola J. Patron ◽  
Andrew R. Bottrill ◽  
Jason R. Dinges ◽  
Brendan F. Fahy ◽  
...  
Keyword(s):  
Small Subunit ◽  
Barley Mutant ◽  
Adp Glucose Pyrophosphorylase

Genomic organizations of two small subunit ADP-glucose pyrophosphorylase genes from sweetpotato

Gene ◽  
2004 ◽  
Vol 339 ◽  
pp. 173-180 ◽  
Author(s):  
Seol Ah Noh ◽  
Man Sup Kwak ◽  
Haeng Soon Lee ◽  
Gyung Hye Huh ◽  
Jang Ryol Liu ◽  
...  
Keyword(s):  
Small Subunit ◽  
Adp Glucose Pyrophosphorylase

scholarly journals Guard Cell Starch Biosynthesis Regulated by Effectors of ADP-Glucose Pyrophosphorylase

1984 ◽  
Vol 74 (2) ◽  
pp. 424-429 ◽  
Author(s):  
William H. Outlaw ◽  
Mitchell C. Tarczynski
Keyword(s):  
Guard Cell ◽  
Starch Biosynthesis ◽  
Adp Glucose Pyrophosphorylase

Partial male sterility induced in tobacco by overproduction of mRNA of sweet potato small subunit ADP-glucose pyrophosphorylase

2001 ◽  
Vol 158 (10) ◽  
pp. 1273-1279 ◽  
Author(s):  
Jung M. Bae ◽  
Chee H. Harn ◽  
Kyoung H. Tae ◽  
Mi C. Suh ◽  
Jeong S. Shin ◽  
...  
Keyword(s):  
Male Sterility ◽  
Sweet Potato ◽  
Small Subunit ◽  
Adp Glucose Pyrophosphorylase

scholarly journals Barley grains, deficient in cytosolic small subunit of ADP-glucose pyrophosphorylase, reveal coordinate adjustment of C:N metabolism mediated by an overlapping metabolic-hormonal control

2012 ◽  
Vol 69 (6) ◽  
pp. 1077-1093 ◽  
Author(s):  
Benjamin Faix ◽  
Volodymyr Radchuk ◽  
Annika Nerlich ◽  
Christine Hümmer ◽  
Ruslana Radchuk ◽  
...  
Keyword(s):  
Small Subunit ◽  
Hormonal Control ◽  
Adp Glucose Pyrophosphorylase ◽  
Barley Grains

Is There an Alternative Pathway for Starch Biosynthesis in Cereal Seeds?

1994 ◽  
Vol 49 (3-4) ◽  
pp. 215-219 ◽  
Author(s):  
Per Villand ◽  
Leszek A. Kleczkowski
Keyword(s):  
Direct Evidence ◽  
Alternative Pathway ◽  
Genetic Data ◽  
Starch Biosynthesis ◽  
Barley Seed ◽  
Barley Endosperm ◽  
Key Enzyme ◽  
Cereal Seed ◽  
Adp Glucose Pyrophosphorylase ◽  
Glucose Carrier

A hypothesis is presented concerning a putative extra-am yloplastic location of barley seed endosperm ADP-glucose pyrophosphorylase (AGPase), a key enzyme of starch biosynthesis. The hypothesis is based both on indirect and direct evidence obtained in our laboratory as well as on data of other investigators. It is proposed that ADP-glucose form ed by the extraamyloplastic enzyme is transported to the am yloplasts via an ADP-glucose carrier in the plastid membrane, and then is utilized by the starch biosynthesizing machinery of these organelles. In addition to the extra-am yloplastic form of AGPase, barley endosperm contains also a second isozyme of AGPase, located in the amyloplasts. Presence of isozymes of AGPase in cereal seed endosperm is consistent with biochemical, molecular and genetic data on starch biosynthesis in this tissue

A mutant of rice lacking the leaf large subunit of ADP-glucose pyrophosphorylase has drastically reduced leaf starch content but grows normally

2007 ◽  
Vol 34 (6) ◽  
pp. 480 ◽  
Author(s):  
Sandrine Rösti ◽  
Brendan Fahy ◽  
Kay Denyer
Keyword(s):  
Environmental Conditions ◽  
No Reduction ◽  
Starch Content ◽  
Large Subunit ◽  
Starch Synthesis ◽  
Small Subunit ◽  
Wild Type ◽  
Gene Encoding ◽  
Subunit Protein ◽  
Adp Glucose Pyrophosphorylase

A mutant of rice was identified with a Tos17 insertion in OsAPL1, a gene encoding a large subunit (LSU) of ADP-glucose pyrophosphorylase (AGPase). The insertion prevents production of a normal transcript from OsAPL1. Characterisation of the mutant (apl1) showed that the LSU encoded by OsAPL1 is required for AGPase activity in rice leaf blades. In mutant leaf blades, the AGPase small subunit protein is not detectable and the AGPase activity and starch content are reduced to <1 and <5% of that in wild type blades, respectively. The mutation also leads to a reduction in starch content in the leaf sheaths but does not significantly affect AGPase activity or starch synthesis in other parts of the plant. The sucrose, glucose and fructose contents of the leaves are not affected by the mutation. Despite the near absence of starch in the leaf blades, apl1 mutant rice plants grow and develop normally under controlled environmental conditions and show no reduction in productivity.

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