K. Koch

Publications113
h-index41
Citations7,812
Highly Influential Citations394
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  • Publications
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Sucrose metabolism: regulatory mechanisms and pivotal roles in sugar sensing and plant development.
  • K. Koch
  • Biology
    Current opinion in plant biology
  • 1 June 2004
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CARBOHYDRATE-MODULATED GENE EXPRESSION IN PLANTS.
  • K. Koch
  • Biology
    Annual review of plant physiology and plant…
  • 1 June 1996
TLDR
The review addresses the above from molecular to whole-plant levels and considers emerging models for sensing and transducing carbohydrate signals to responsive genes.
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An Arabidopsis cell wall-associated kinase required for invertase activity and cell growth.
TLDR
It is shown that a single wak2 mutation exhibits a dependence on sugars and salts for seedling growth, and WAKs may provide a molecular mechanism linking cell wall sensing to regulation of solute metabolism, which in turn is known to be involved in turgor maintenance in growing cells.
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Sucrose-metabolizing enzymes in transport tissues and adjacent sink structures in developing citrus fruit.
TLDR
The physiological function of high sucrose synthase activity in the transport tissues during rapid sucrose import remains to be determined.
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Soluble Invertase Expression Is an Early Target of Drought Stress during the Critical, Abortion-Sensitive Phase of Young Ovary Development in Maize1
To distinguish their roles in early kernel development and stress, expression of soluble (Ivr2) and insoluble (Incw2) acid invertases was analyzed in young ovaries of maize (Zea mays) from 6 d before…
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Steady-state transposon mutagenesis in inbred maize.
TLDR
The results indicate that Mu populations differ markedly in the occurrence of Mu insertion hotspots and the frequency of suppressible mutations, and suggest that controlled MuDR copy number in UniformMu lines is a key determinant of these differences.
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A Similar Dichotomy of Sugar Modulation and Developmental Expression Affects Both Paths of Sucrose Metabolism: Evidence from a Maize Invertase Gene Family.
TLDR
It is shown that invertases are indeed sugar modulated and, surprisingly, like the sucrose synthase genes, fall into two classes with contrasting sugar responses, which support a model for integrating expression of genes differentially responsive to carbohydrate availability with developmental signals.
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Positional cues for the starch/lipid balance in maize kernels and resource partitioning to the embryo.
TLDR
Data indicate that the in vivo oxygen distribution in maize kernels markedly affects ATP gradients, metabolite levels, and favors assimilate partitioning toward starch within the O2-depleted endosperm, and clear advantages are evident for peripheral localization of the protein and lipid storing structures in maize kernel.
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Yield, Water-, and Nitrogen-use Efficiency in Field-grown, Grafted Tomatoes
In addition to managing soilborne diseases, grafting with vigorous rootstocks has been shown to improve yield in tomato (Solanum lycopersicum L.) production. However, the influence of different…
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Sugar Levels Modulate Differential Expression of Maize Sucrose Synthase Genes.
TLDR
The differential response of the two sucrose synthase genes to sugars provides a potential mechanism for altering the pattern of enzyme distribution in response to changing carbohydrate status and also for adjusting the sucrose-metabolizing capacity of importing cells relative to levels of available photosynthetic products.
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