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Table 2 Fold changes of detected metabolites in leaves of the three barley genotypes under LK stress

From: Root and leaf metabolite profiles analysis reveals the adaptive strategies to low potassium stress in barley

Metabolite name

Log2(LK/C)a

Metabolite name

Log2(LK/C)a

XZ153

XZ141

LuDaoMai

 

XZ153

XZ141

LuDaoMai

Amino acid b

   

Sugars and polyols

   

L-Alanine

0.01

0.51**

0.24**

Sucrose

0.06

0.13**

0.01

Valine

1.17**

1.39**

1.27**

Inositol

0.76**

0.30**

1.28**

L-Leucine

1.23**

1.84**

1.06**

Organic acid

   

L-Isoleucine

1.01**

1.17**

1.65**

Glycolic acid

1.88**

1.29**

1.67**

L-Proline

0.78**

0.61**

0.71*

Benzoic acid

2.35**

1.59**

1.82**

Glycine

2.30**

3.41**

3.36**

Maleic acid

3.43**

2.79**

2.92**

L-Serine

1.00**

0.83**

0.80**

Succinic acid

−1.40**

−1.26**

−1.28**

L-Threonine

0.79**

0.81**

0.78**

Glyceric acid

−0.20*

−0.04

1.42**

β-Alanine

−0.96**

−0.52**

0.14

Fumaric acid

−0.35**

−0.50**

0.27**

L-Aspartic acid

−1.61**

−2.40**

−1.79**

Malic acid

−2.12**

−2.40**

−1.41**

GABA

0.13*

0.33**

0.05

Ketoglutaric acid

−3.59**

−4.73**

−2.51**

L-Glutamic acid

−1.69**

−2.25**

−1.21**

Threonic acid

−1.47**

− 1.09**

−1.83**

L-Phenylalanine

1.90**

1.38**

1.51**

Ribotide

−0.02

−0.95**

−0.03

L-Lysine

2.52**

1.82**

1.91**

Shikimic acid

−0.56**

−0.30*

0.92**

Tyrosine

2.30**

1.80**

2.15**

Citric acid

−4.77**

−4.99**

−3.58**

L-Asparagine

5.43**

3.98**

2.32**

Quinic acid

−0.17**

−0.30*

0.35**

L-Glutamine

3.78**

2.66**

2.43**

Ascorbic acid

0.12

−0.35*

0.69**

Sugars and polyols

   

Hexadecanoic acid

1.19**

1.38**

0.15*

Xylose

0.71**

1.05**

1.34**

Hexanoic acid

0.26

0.50**

−0.70**

L-Arabinose

1.85**

1.54**

1.74**

others

   

Ribose

0.87**

2.14**

1.36**

Putrescine

5.30**

5.14**

4.54**

Xylitol

0.58**

0.59**

0.27*

Uracil

3.08**

1.35**

2.62**

2-Keto-L-gluconic acid

0.25*

0.27**

0.18*

Pipecolinic acid

3.83**

2.61**

0.71**

Fructose

2.83**

3.07**

3.43**

Threonic acid-1,4-Lactones

0.1

0.63**

1.02**

Galactose

3.75**

2.65**

2.81**

O-Acetyl-L-Serine

1.31**

0.55**

2.03**

Glucose

4.63**

3.57**

3.87**

Pyroglutamic acid

0.68**

−0.32**

−0.03

Sorbose

2.64**

2.63**

2.86**

O-Methyl-Inositol

0.91**

−0.04

0.12

Maltose

−0.50**

−0.52**

− 0.11

–

–

–

–

  1. aThe fold changes were calculated using the formula log2 (LK/C), LK Low potassium, C control. bThe bolder parts of the table are the different categories of metabolites.* and ** indicate significant (p < 0.05) and highly significant difference (p < 0.01), respectively