Ability of Three Pleurotus Species for Effective use of Giant Grass Compost

Pleurotus species	Glucosidase	Amylase	MnP	Xylanase	LiP	Laccase	CMCase	FPase
P. florida	153.7±1.5b	372.7±5.3a	148.9±14.4b	143.5±2.3b	601.4±5.6a	163.2±8.0a	495.8±21.6a	257.3±13.1b
P. pulmonarius	164.8±3.7a	249.0±12.9b	273.4±6.9a	173.4±8.1a	632.6±18.1a	90.4±4.0b	311.4±14.9b	418.7±13.8a
P. ostreatus	165.1±4.7a	202.7±16.4c	271.7±13.9a	118.0±3.2c	603.6±23.6a	98.7±7.7b	478.6±1.3a	154.5±21.1c

[i] Different letters in a column represent a significant difference in enzyme activity between various species of Pleurotus at p ≤ 0.05 by Duncan's multiple range tests (n = 3)

Comparison of enzymatic activities of three *Pleurotus* species cultured in composted giant grass at the inoculation phase (comparisons were made within species)

Comparison of enzymatic activities of three *Pleurotus* species cultured in composted giant grass at the mycelial colonization phase

Comparison of enzymatic activities of three *Pleurotus* species cultured in composted giant grasses at the fruiting stage

Table 2

Enzyme activities (Iu·dm⁻³ ± SD) at the mycelia colonization stage of three Pleurotus species cultured in composted giant grass

Pleurotus species	Glucosidase	Amylase	MnP	Xylanase	LiP	Laccase	CMCase	FPase
P. florida	125.5±2.8b	320.3±10.5a	223.2±4.6b	93.6±2.8c	611.8±11.1a	97.2±2.6c	524.5±15.0a	311.1±8.8a
P. pulmonarius	93.8±4.4c	256.9±10.6b	158.1±15.3c	145.1±5.5a	481.9±24.5b	113.7±4.7b	373.1±16.2b	214.2±2.8c
P. ostreatus	156.8±2.3a	266.5±5.7b	248.3±9.6a	116.4±7.2b	649.6±26.8a	141.7±6.0a	278.4±23.0c	257.3±8.9b

[i] See explanation in Table 1

Table 3

Enzyme activities (Iu·dm⁻³ ± SD) at the fruiting stage of three Pleurotus species cultured in composted giant grass

Pleurotus species	Glucosidase	Amylase	MnP	Xylanase	LiP	Laccase	CMCase	FPase
P. florida	98.7±1.8b	181.2±9.9b	272.7±4.7a	132.3±4.8b	610.3±11.2b	147.5±3.4ab	301.3±4.5b	237.6±9.8b
P. pulmonarius	99.6±4.5b	300.1±14.4a	177.6±7.2b	198.9±8.2a	715.0±16.1a	145.8±2.3b	550.3±30.4a	204.1±12.8c
P. ostreatus	151.3±5.2a	144.9±16.5c	184.6±4.7b	98.4±6.2c	441.1±6.8c	154.9±6.0a	288.4±15.2b	349.5±11.2a

[i] See explanation in Table 1

Table 4

Mycelia growth and productive capacity of three Pleurotus species cultured in composted giant grass

Pleurotus species	Mycelia growth (days)	Primordia initiation (days)	No. of fruiting bodies	Fresh fruiting body weight (g)	Stipe length (cm)	Pileus diameter (cm)	BE^* (%)
P. florida	23.9±1.2a	46.4±1.5c	15.8±3.2c	152.2±11.0b	5.9±0.4a	8.2±0.7b	72.5±5.2c
P. pulmonarius	26.5±3.0b	38.9±3.0a	23.2±3.3a	173.4±13.0a	5.4±0.4b	7.5±0.8c	82.6±6.2a
P. ostreatus	25.3±1.5b	42.0±1.9b	18.5 ± 2.6b	166.5 ±12.7a	5.6±0.5b	8.7±0.4a	78.6±5.8b

Means ± SD followed by letters indicating a significant difference at 5% probability; in a column, different letters represent a significant mean difference between Pleurotus spp ± SD at 5% probability; the total number of replicate bags per species was 18 bags (500 g per bag)

* BE – biological efficiency

Table 5

The content of nutrients in fruiting bodies (mg·g⁻¹ ± SD) of three Pleurotus species cultured in composted giant grass

Pleurotus species	Polysaccharides	Protein	Carbohydrate	Amino acids total	Fat	Crude ash	Fiber
P. florida	3.47±0.01c	114.25±0.98b	96.29±1.10c	2.89±0.01a	51.18±0.11a	12.63±0.23b	19.89±0.48a
P. pulmonarius	3.88±0.01b	108.55±1.03c	105.54±1.55b	2.68±0.01b	43.56±0.77c	15.26±0.22a	17.30±0.62b
P. ostreatus	4.11±0.02a	121.54±1.03a	110.75±1.03a	2.35±0.07c	48.77±0.07b	11.69±0.27c	20.42±0.72a

[i] In a column, different letters represent a significant nutrient content difference between Pleurotus species, at p ≤ 0.05 according to Duncan's multiple range tests; the total number of replicate bags per species was 18 bags (500 g per bag)

Table 6

The content of heavy metals (mg·kg⁻¹ ± SD) in fruiting bodies of three Pleurotus species cultured in composted giant grass

Pleurotus species	Hg	As	Pb	Cd
P. florida	0.015a	0.043b	0.017b	0.130b
P. pulmonarius	0.012c	0.047a	0.018a	0.136a
P. ostreatus	0.014b	0.042c	0.015c	0.123c

[i] In a column, different letters represent a significant metal content difference between various Pleurotus species at p ≤ 0.05 according to Duncan's multiple range tests; the total number of replicate bags per species was 18 bags (500 g per bag)

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DOI: https://doi.org/10.2478/johr-2022-0006 | Journal eISSN: 2353-3978 (formerly 2300-5009) | Journal ISSN: 2300-5009

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Language: English

Page range: 67 - 76

Submitted on: Mar 1, 2022

Accepted on: May 1, 2022

Published on: Jun 22, 2022

Published by: National Institute of Horticultural Research

In partnership with: Paradigm Publishing Services

Keywords:

composted substrate,

giant grass,

lignocellulolytic enzyme,

Related subjects:

Ecology,

© 2022 Obed Niyimbabazi, Aimable Nsanzinshuti, Mediatrice Hatungimana, Hui Lin, Lili Zhang, Dongmei Lin, Lin Zhanxi, published by National Institute of Horticultural Research
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 30 (2022): Issue 1 (June 2022)

Ability of Three Pleurotus Species for Effective use of Giant Grass Compost

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