Journal of Botany

Research Article

Morphoanatomical and Biochemical Changes in the Roots of Rice Plants Induced by Plant Growth-Promoting Microorganisms

Table 3

Phenols, flavonoids, lignin, and lignin monomer contents of roots of rice plants obtained from seeds microbiolized with bioagents, 21 days following sowing.


Treatment	Phenols
Treatment	Total phenols	Flavonoids	Lignin	Lignin monomers

T. asperellum⁽¹⁾	64 × 10⁻² ± 0.15 × a⁽³⁾	10.93 × 10⁻² ± 0.67 × 10⁻² a	2.93 × 10⁻² ± 1.05 × 10⁻² a	1.44 × 10⁻² ± 1.37 × 10⁻² c

B. pyrrocinia + P. fluorescens	8.15 × 10⁻² ± 1.21 × 10⁻² ab	8.05 × 10⁻² ± 0.62 × 10⁻² b	0.40 × 10⁻² ± 0.10 × 10⁻² b	0.49 × 10⁻² ± 0.30 × 10⁻² c

B. pyrrocinia	9.11 × 10⁻² ± 1.47 × 10⁻² a	8.16 × 10⁻² ± 0.34 × 10⁻² b	0.42 × 10⁻² ± 1.82 × 10⁻² b	2.47 × 10⁻² ± 1.83 × 10⁻² b

P. fluorescens	8.92 × 10⁻² ± 2.27 × 10⁻² a	8.06 × 10⁻² ± 0.74 × 10⁻² b	2.18 × 10⁻² ± 1.82 × 10⁻² a	4.05 × 10⁻² ± 0.56 × 10⁻² a

T. asperellum⁽¹⁾ + B. pyrrocinia + P. fluorescens	9.48 × 10⁻² ± 1.96 × 10⁻² a	7.54 × 10⁻² ± 0.37 × 10⁻² c	0.90 × 10⁻² ± 1.45 × 10⁻² b	0.38 × 10⁻² ± 0.73 × 10⁻² c

Control	6.80 × 10⁻² ± 0.77 × 10⁻² b	6.79 × 10⁻² ± 0.19 × 10⁻² d	0.74 × 10⁻² ± 0.30 × 10⁻² b	0.47 × 10⁻² ± 8.00 × 10⁻² c

All the results are presented in mg per g dry mass. T. asperellum (mix of four T. asperellum isolates: T-06, T-09, T-12, and T-52). Standard error ( ≤ 0.05). Averages followed by the same letter within the same column were not significantly different according to Duncan’s test ( ≤ 0.05). Number of samples = 20.