. 2018 Sep 5;6:e5445. doi: 10.7717/peerj.5445

Table 2. Amino acids identified on sugarcane methanolic leaves extracts by GC-MS TOF.

The treatments were inoculation with G. diazotrophicus and H. seropedicae (PGPB), bacteria and humic acid (PGPB+HA) or only humic acid (HA) isolated from vermicompost. The data were expressed in respect to the control treatment (%).

Metabolite	HA	PGPB	PGPB+HA
3-aminoisobutyric acid	12^ns	1^ns	−20^ns
4-hydroxyproline	1^ns	94^**	369^**
5-aminovaleric acid	212^**	24^ns	64^ns
5-hydroxynorvaline	−26^ns	154^**	52^ns
asparagine	−85^**	177^ns	937^ns
aspartic acid	16^ns	122^**	629^**
β-alanine	15^ns	−21^ns	0^ns
citrulline	−18^ns	359^*	276^ns
cyano-L-alanine	−3^ns	155^ns	186^ns
glutamic acid	14^ns	254^**	250^**
glutamine	−72^ns	1,038^**	595^**
glycine	−14^**	0^ns	107^**
homoserine	−38^ns	216^*	640^**
isoleucine	45^**	88^**	135^**
lysine	202^ns	220^ns	830^ns
methionine	−42^ns	161^ns	199^ns
N-acetylornithine	17^ns	95^ns	237^ns
N-hexanoylglycine	184^ns	404^ns	646^ns
N-methylalanine	−40^ns	101^**	99^**
O-acetylserine	16^ns	10^ns	94^ns
oxoproline	26^**	192^**	320^**
phenylalanine	126^ns	1,004^**	819^**
proline	278^**	1,031^**	1,155^**
serine	−3^ns	253^**	81^**
threonine	34^ns	414^**	101^**
thymine	−15^ns	216^**	367^**

Notes.

ns: no significant

p < 0.05.

^**

p < 0.01.