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Literature summary for 2.7.7.27 extracted from

  • Kwak, M.S.; Min, S.R.; Lee, S.M.; Kim, K.N.; Liu, J.R.; Paek, K.H.; Shin, J.S.; Bae, J.M.
    A sepal-expressed ADP-glucose pyrophosphorylase gene (NtAGP) is required for petal expansion growth in Xanthi tobacco (2007), Plant Physiol., 145, 277-289.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
gene AGP from a flower bud cDNA library, DNA and amino acid sequence determination and analysis Nicotiana tabacum

Protein Variants

Protein Variants Comment Organism
additional information AGP-antisense plants show flowers with abnormal petal limbs due to the early termination of the expansion growth of the petal limbs between the corolla lobes, the cell expansion is limited in NtAGP-antisense plants but cell numbers remained unchanged. Enzyme mRNA levels and starch content in the sepal tissues of AGP-antisense plants are reduced, resulting in significantly lower levels of sugars, sucrose, glucose, and fructose, in the petal limbs. The feeding of these sugars to flower buds of the AGP-antisense plants restores the expansion growth in the limb area between the corolla lobes, which is severely arrested in ย‘Xanthiย’ flowers from which sepals are removed Nicotiana tabacum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + alpha-D-glucose-1-phosphate Nicotiana tabacum AGP plays a crucial role in the morphogenesis of petal limbs in Xanthi through the synthesis of starch, which is the main carbohydrate source for expansion growth of petal limbs, in sepal tisues, overview ADP-D-glucose + diphosphate
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r

Organism

Organism UniProt Comment Textmining
Nicotiana tabacum
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Xanthi tobacco, gene AGP
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Source Tissue

Source Tissue Comment Organism Textmining
carpel
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Nicotiana tabacum
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flower high expression level in the sepal, moderate in the carpel and stamen, and low in the petal tissues, AGP expression patterns, overview Nicotiana tabacum
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petal
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Nicotiana tabacum
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sepal
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Nicotiana tabacum
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stamen
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Nicotiana tabacum
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + alpha-D-glucose-1-phosphate
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Nicotiana tabacum ADP-D-glucose + diphosphate
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r
ATP + alpha-D-glucose-1-phosphate AGP plays a crucial role in the morphogenesis of petal limbs in Xanthi through the synthesis of starch, which is the main carbohydrate source for expansion growth of petal limbs, in sepal tisues, overview Nicotiana tabacum ADP-D-glucose + diphosphate
-
r

Synonyms

Synonyms Comment Organism
ADP-glucose pyrophosphorylase
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Nicotiana tabacum