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Table 1 Selected metabolites assigned in wheat stem tissues by AP-SMALDI-MS imaging

From: Histology-guided high-resolution AP-SMALDI mass spectrometry imaging of wheat-Fusarium graminearum interaction at the root–shoot junction

Compounds

Location in stem base

LMIa

Referencesb

10 dai

14 dai

21 dai

Host-derived

Feruloylagmatine

Leaf sheath (ep, vb)

 

Leaf sheath (vb)

1

[31, 32]

Iridotrial glucoside

Leaf sheath (ep, vb)

  

2

[31, 33]

Oxo-octadecadiynoic acid

Leaf sheath (ep, vb)

  

1

[38]

Adenosyl methionine

Leaf sheath (ep)

  

1

[31]

Kaempferol methyl ether glucuronide

 

Stem

 

2

 

Corchorusoside E

 

Stem (vb)

 

1

 

Coumaroylagmatine

  

Leaf sheath (vb), stem (co)

1

[31,32,33]

Feruloylserotonin

  

Leaf sheath (vb)

1

[31, 32]

Coumaroylserotonin

  

Leaf sheath (vb)

1

[31,32,33]

PA(38:3)

 

Leaf sheath

Leaf sheath

2

 

PS(36:3)

 

Leaf sheath

Leaf sheath

2

 

Pathogen-derived

Cerebroside C

Leaf sheath (ep)

    

Enniatin B

 

Leaf sheath (ep)

Leaf sheath

1

 

Enniatin B2

  

Leaf sheath

1

 

Enniatin B4

  

Leaf sheath

1

 

Enniatin A1

  

Leaf sheath

1

 

Beauvericin

  

Leaf sheath

1

 
  1. Additional file 2: Table S1 provides a complete list of annotated compounds, locations, molecular formulas, adducts, and theoretical masses. Abbreviations: co, specific location in cortex parenchyma; dai, days after root inoculation with F. graminearum; ep, specific location in epidermis; PA, phosphatidic acid; PS, phosphatidylserine; vb, specific location in vascular bundles
  2. aLevel of metabolite identification (LMI) in public databases: 1, putative compound (match to a single compound); 2, putatively characterized compound class or representative of a compound class (match to isomeric metabolites)
  3. bReferences (Ref) for metabolites detected in studies on wheat or barely resistance to the spike disease Fusarium head blight caused by F. graminearum