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Table 3 Expression of selected significant genes under different N conditions

From: Global transcription profiling reveals differential responses to chronic nitrogen stress and putative nitrogen regulatory components in Arabidopsis

Functional classification

Locus

Gene identification

Fold limiting

Fold stress

Fold 2 hr

Fold 24 hr

nitrate accumulation

At5g40890

anion channel protein

Ns

-6.8

2.9

6.0

photosynthesis

At1g03600

photosystem II family protein

Ns

-2.9

ns

2.3

 

At4g28660

photosystem II protein W

Ns

-2.7

ns

3.2

pentose-phosphate pathway

At5g35790

glucose-6-phosphate 1-dehydrogenase

Ns

-2.6

ns

2.3

 

At1g24280

glucose-6-phosphate 1-dehydrogenase

Ns

ns

5.2

ns

starch synthesis

At4g39210

ADP-glucose pyrophosphorylase

Ns

3.9

ns

-4.1

 

At2g21590

ADP-glucose pyrophosphorylase

Ns

2.8

ns

-3.1

chlorophyll synthesis

At1g03630

protochlorophyllide reductase

Ns

-2.9

ns

2.8

 

At4g27440

protochlorophyllide reductase

Ns

-2.9

ns

2.3

 

At5g08280

hydroxymethylbilane synthase

Ns

-2.6

ns

2.7

protein degradation

At5g45890

senescence-specific cysteine protease SAG12

Ns

7.7

ns

-4.3

nitrogen detoxification

At5g22300

nitrilase 4

2.8

11.5

ns

-4.4

anthocyanin synthesis

At4g22880

leucoanthocyanidin dioxygenase

2.1

14.4

ns

-7.8

 

At5g42800

dihydroflavonol 4-reductase

3.3

18.7

ns

-8.3

 

At5g13930

chalcone synthase

Ns

4.1

ns

-3.4

 

At1g56650

Myb transcription factor PAP1

Ns

6.3

-3.0

-6.3

 

At1g66390

Myb transcription factor PAP2

3.5

26.6

-6.7

-16.7

phenylpropanoid synthesis

At2g37040

phenylalanine ammonia lyase

Ns

4.1

ns

-3.2

response to cytokinin

At3g63110

cytokinin synthase

Ns

ns

3.6

ns

 

At3g48100

transcription repressor

Ns

-4.3

3.7

3.6

 

At2g18300

transcription factor

Ns

-8.4

7.9

6.8

transcription

At1g30500

CCAAT transcription factor

Ns

4.3

ns

-4.3

 

At2g34720

CCAAT transcription factor

Ns

3.4

ns

-3.0

 

At3g05690

CCAAT transcription factor

Ns

3.8

ns

ns

 

At5g47220

ATERF2 transcription factor

2.0

2.4

ns

ns

  1. Fold changes under different N conditions were presented: sufficient N vs. limiting N (fold, limiting); sufficient N vs. stress N (fold, stress); stress N vs. 2 hr induction (fold, 2 hr); stress N vs. 24 hr induction (fold, 24 hr). Negative number means gene expression down-regulated in said condition, and positive number means gene expression up-regulated in said condition. ns – not significant from our SAM analysis
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BMC Genomics

ISSN: 1471-2164

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