Effect of mustard rhizobacteria on wheat growth promotion under cadmium stress: characterization of acdS gene coding ACC deaminase

Table 2 Effect of ACC deaminase containing mustard rhizobacterial isolates on plant growth and in vitro plant ethylene production in wheat (cv. HD 2687) seedlings under gnotobiotic conditions

S.No.	Treatment	Root length (cm)*	Shoot length (cm)*	Fresh weight (g per plant)*	Dry weight (g per plant)*	Ethylene production (pmol/g fresh weight)†
1	Control	14.12 ± 0.21^d	07.00 ± 0.15^e	1.06 ± 0.03^f	0.10 ± 0.01^d	1.43 ± 0.15^d
2	Pf 913 (+ve)	19.51 ± 0.18^ab	10.29 ± 0.06^ab	1.79 ± 0.13^a	0.18 ± 0.02^a	0.41 ± 0.01^a
3	DH5α (−ve)	14.28 ± 0.37^d	07.04 ± 0.22^e	1.08 ± 0.04^f	0.11 ± 0.01^cd	1.35 ± 0.14^d
4	Ps 1-12	17.05 ± 0.23^c	08.62 ± 0.12^d	1.38 ± 0.13^cdef	0.16 ± 0.02^ab	0.90 ± 0.10^bc
5	Ps 2-3	20.70 ± 0.09^a	10.64 ± 0.03^a	1.80 ± 0.13^a	0.19 ± 0.02^a	0.39 ± 0.01^a
6	Ps 2-12	17.69 ± 0.24^c	09.25 ± 0.14^bcd	1.31 ± 0.09^ef	0.16 ± 0.01^ab	0.60 ± 0.02^abc
7	Ps 3-7	18.30 ± 0.10^bc	09.88 ± 0.04^abc	1.48 ± 0.15^abcde	0.17 ± 0.01^ab	0.58 ± 0.07^ab
8	Ps 4-17	18.21 ± 0.11^bc	09.81 ± 0.05^abc	1.33 ± 0.09^ef	0.13 ± 0.01^bcd	0.68 ± 0.03^abc
9	Ps 5-1	17.15 ± 0.18^c	08.87 ± 0.16^cd	1.35 ± 0.16^def	0.14 ± 0.02^abc	0.93 ± 0.12^c
10	Ps 7-9	18.23 ± 0.14^bc	10.05 ± 0.03^ab	1.60 ± 0.14^abcde	0.17 ± 0.02^a	0.42 ± 0.11^a
11	Ps 7-12	19.47 ± 0.17^ab	10.27 ± 0.12^ab	1.78 ± 0.12^abc	0.18 ± 0.01^a	0.40 ± 0.02^a
12	A48	17.09 ± 0.12^c	08.82 ± 0.09^d	1.65 ± 0.03^bcdef	0.15 ± 0.01^ab	0.96 ± 0.09^c
13	Fb600	19.42 ± 0.16^ab	09.94 ± 0.11^ab	1.74 ± 0.14^abcd	0.18 ± 0.02 ^a	0.51 ± 0.06^ab

*Values are the means of three-replication ± standard error
† Values are the means of five-replication ± standard error. Values with the same superscripts within column indicate no significant difference with P ≥ 0.05

ISSN: 1869-2044