. 2020 Sep 22;11:580081. doi: 10.3389/fmicb.2020.580081

TABLE 2.

In vitro quantitative assays for ARA, ACC, and hydrolytic enzymes of isolated endophytic strains.

Isolates	IAA (μg mL^–¹)			ARA (nmoL C₂H₄ mg protein h^–¹)	ACC (nmol α-ketobutyrate mg^–1 h^–1)	Hydrolytic Enzymes (IU mL^–1)
	AT	PT (0.5%)	PT (1%)			Cellulase	Chitinase	Endoglucanase	Protease
AA1	65.23^d	167.98 ^j	147.71^k	9.91^k	508.36^j	123.34^jkl	183.24^j	529.59^l	154.42^fg
AH1	140.08^a	627.97^cd	159.95^j	14.73^f	509.05^j	125.87^ijk	190.52ⁱ	619.77^j	157.73^ef
BC1	28.30ⁱ	155.34^k	272.74^g	8.23^m	837.90^e	134.75^h	225.51^f	691.93^h	151.77^ghi
BC2	38.13^f	656.27^b	527.42^a	10.54^j	405.46^m	128.40^ij	174.32^k	583.69^k	146.49^ij
BD1	39.34^f	418.85^f	402.59^f	11.17ⁱ	250.40^q	129.66ⁱ	174.51^k	574.67^k	152.44^fgh
CA1	30.71^h	128.04^m	131.25^lm	13.26^g	717.31^g	211.52^b	202.18^h	858.89^e	168.34^ab
C10	26.49^jk	116.00ⁿ	235.01^h	15.77^e	424.53^m	104.63^m	151.24^m	777.65^g	154.42^fg
CI1	20.87^m	76.46^q	155.14^jk	12.21^h	212.73^r	122.08^kl	151.44^m	658.68ⁱ	148.47^hij
DF1	24.69^l	160.15^jk	76.66^p	13.05^g	688.43^h	118.32^l	168.69^k	700.95^h	149.79^g–j
DH1	110.78^c	213.94ⁱ	46.16^q	9.07^l	758.85^f	147.59^g	243.03^e	687.42^h	151.77^ghi
EB3	33.11^g	617.93^d	421.26^e	9.28^l	1192.74^a	122.08^kl	170.14^k	786.68^g	157.73^ef
EC5	31.51^gh	635.40^c	435.91^d	13.26^g	657.94ⁱ	193.83^c	231.35^f	849.86^ef	169.01^ab
ED4	47.97^e	142.89^l	139.08^l	8.25^m	966.23^c	127.13^ijk	216.76^g	601.73^jk	153.10^fgh
ED5	123.23^b	732.93^a	517.19^b	29.60^a	1096.10^b	179.07^d	295.68^b	1355.87^d	169.67^ab
EF2	27.29^ij	91.32^op	92.32^o	15.36^e	683.19^h	152.77^f	229.89^f	691.93^h	145.83^j
EI1	31.11^h	524.01^e	471.83^c	10.54^j	881.38^d	93.58ⁿ	269.34^d	592.71^jk	144.51^j
R15	16.86^p	70.64^q	48.97^q	16.40^d	424.28^m	143.72^g	338.20^a	714.49^h	163.03^cd
R16	17.66^op	96.33^o	84.69^op	20.38^b	263.76^pq	107.10^m	278.12^c	696.44^h	148.47^hij
AS3	33.11^g	235.61^h	200.89ⁱ	16.54^d	296.61^o	173.76^e	161.41^l	822.78^f	172.99^a
AS5	19.07^no	534.85^e	147.71^k	20.17^b	454.09^l	156.67^f	155.60^lm	1342.30^d	167.01^bc
ACA7	19.87^mn	96.53^o	128.44^m	15.72^e	273.74^p	146.29^g	136.71ⁿ	1446.33^b	172.99^a
ACD1	25.49^kl	332.55^g	153.53^jk	18.92^c	473.64^k	449.25^a	125.09^o	1554.92^a	167.68^abc
ACD2	11.24^q	81.08^pq	107.57ⁿ	14.52^f	372.76ⁿ	104.63^m	132.35ⁿ	1410.14^c	161.04^de
SEM	0.573	4.000	2.864	0.159	6.806	1.774	2.203	9.572	1.677
CD (P = 0.05)	1.632	11.387	8.153	0.453	19.373	5.051	6.272	27.248	4.775
CV (%)	2.400	2.300	2.200	1.900	2.000	2.000	1.900	2.000	1.800

Means of the similar alphabet within a row are not significantly different (P ≤ 0.05) according to Duncan’s Multiple Range Test (DMRT). SEM, standard error of the difference between means; CD, critical difference; CV, coefficient of variation. AT, absence of tryptophan and PT, the presence of tryptophan.