丛枝菌根真菌对刺槐热值、碳和灰分含量的影响

doi:10.3724/SP.J.1258.2013.00106

摘要/Abstract

摘要：

该试验以根内球囊霉(Glomus intraradices)和地表球囊霉(G. versiforme)为接种剂, 研究了丛枝菌根真菌对刺槐(Robinia pseudoacacia)生物量、热值、含碳量、灰分、能量积累和碳素积累的影响。结果表明, 接种根内球囊霉和地表球囊霉对提高刺槐生物量、热值、能量积累和碳素积累都起到了重要作用。接种根内球囊霉和地表球囊霉后刺槐的总生物量比对照分别增加了89.61%和91.34%, 能量积累分别比对照增加102.20%和94.19%, 碳素积累分别比对照增加93.30%和77.21%; 同时发现刺槐的能量和碳主要分布在根系和叶, 而茎中能量和碳所占的比例较小。接种根内球囊霉提高了刺槐的干重热值, 其根、茎、叶的干重热值分别比对照增加7.72%、8.94%和8.41%; 接种地表球囊霉也显著(p < 0.05)提高了刺槐的干重热值, 但其效果低于根内球囊霉。接种根内球囊霉显著(p < 0.05)提高了刺槐根的含碳量, 对茎和叶的含碳量影响不明显。接种根内球囊霉和地表球囊霉都显著(p < 0.05)提高了刺槐茎和叶的去灰分热值。

关键词: 丛枝菌根真菌, 灰分含量, 刺槐, 热值, 含碳量

Abstract:

Aims It is still unknown whether arbuscular mycorrhizal (AM) fungi could increase calorific value and carbon content in plants. Our objectives in this study were to (1) determine the effects of two AM fungi, Glomus intraradices and G. versiforme, on biomass, calorific value, carbon content, and ash content in black locust (Robinia pseudoacacia) seedlings; and (2) assess the effectiveness of G. intraradices and G. versiforme in affecting biomass and energy accumulation in black locust.
Methods Three treatments were performed: black locust seedlings, including inoculations of seedlings with G. intraradices, G. versiforme, respectively, and no inoculum as control. Seedlings were grown in a greenhouse for 14 months following treatments, and then their biomass, gross calorific value, carbon content, and ash content of the roots, stems, and leaves were measured. Ash-free calorific value, energy accumulation, and carbon accumulation were calculated.
Important findings We found that inoculations with the two AM fungi increased the biomass, calorific value, and carbon content in black locust seedlings. The accumulations of biomass, energy, and carbon were 89.61%, 102.20%, and 93.30% greater in black locust seedlings inoculated with G. intraradices, and 91.34%, 94.19% and 77.21% greater in those inoculated with G. versiforme, respectively, than the controls. Both calorific value and carbon content were the highest in seedlings inoculated with G. intraradices; and the gross calorific value of roots, stems and leaves were 7.72%, 8.94%, 8.41% higher, respectively, in seedlings inoculated with G. intraradices than the controls. Glomus intraradices was found to be more effective than G. versiforme in enhancing calorific value and accumulation of energy and carbon.

Key words: arbuscular mycorrhizal fungi, ash content, black locust, calorific value, carbon content

朱晓琴,王春燕,盛敏,陈辉,唐明. 丛枝菌根真菌对刺槐热值、碳和灰分含量的影响. 植物生态学报, 2013, 37(11): 1028-1034. DOI: 10.3724/SP.J.1258.2013.00106

ZHU Xiao-Qin,WANG Chun-Yan,SHENG Min,CHEN Hui,TANG Ming. Effects of arbuscular mycorrhizal fungi on calorific value and contents of carbon and ash in Robinia pseudoacacia. Chinese Journal of Plant Ecology, 2013, 37(11): 1028-1034. DOI: 10.3724/SP.J.1258.2013.00106

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https://www.plant-ecology.com/CN/Y2013/V37/I11/1028

图/表 4

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	植物器官 Plant organ	根内球囊霉 Glomus intraradices	地表球囊霉 Glomus versiforme	对照 Control
菌根侵染率 Rate of AM colonization (%)		78 ± 3^a	61 ± 4^b	0^c
苗高 Seedling height (cm)		34.3 ± 3.2^b	38.6 ± 3.7^a	18.2 ± 1.2^c
地茎 Basal diameter (mm)		6.7 ± 0.3^a	7.3 ± 0.4^a	5.5 ± 0.8^b
根冠比 Root/shoot ratio		0.73 ± 0.19^a	0.81 ± 0.12^a	0.58 ± 0.25^a
干重 Dry weight (g·plant^-1)	根 Root	8.30 ± 1.42^a	8.87 ± 0.86^a	3.66 ± 0.94^b
	茎 Stem	4.23 ± 0.49^a	3.95 ± 0.35^a	1.78 ± 0.64^b
	叶 Leaf	7.18 ± 0.57^a	7.07 ± 0.47^a	4.95 ± 1.03^b
	整株 Whole plant	19.72 ± 0.50^a	19.90 ± 0.51^a	10.40 ± 0.76^b

	植物器官 Plant organ	根内球囊霉 Glomus intraradices	地表球囊霉 Glomus versiforme	对照 Control
菌根侵染率 Rate of AM colonization (%)		78 ± 3^a	61 ± 4^b	0^c
苗高 Seedling height (cm)		34.3 ± 3.2^b	38.6 ± 3.7^a	18.2 ± 1.2^c
地茎 Basal diameter (mm)		6.7 ± 0.3^a	7.3 ± 0.4^a	5.5 ± 0.8^b
根冠比 Root/shoot ratio		0.73 ± 0.19^a	0.81 ± 0.12^a	0.58 ± 0.25^a
干重 Dry weight (g·plant^-1)	根 Root	8.30 ± 1.42^a	8.87 ± 0.86^a	3.66 ± 0.94^b
	茎 Stem	4.23 ± 0.49^a	3.95 ± 0.35^a	1.78 ± 0.64^b
	叶 Leaf	7.18 ± 0.57^a	7.07 ± 0.47^a	4.95 ± 1.03^b
	整株 Whole plant	19.72 ± 0.50^a	19.90 ± 0.51^a	10.40 ± 0.76^b

	植物器官 Plant organ	根内球囊霉 Glomus intraradices	地表球囊霉 Glomus versiforme	对照 Control
干重热值 Gross calorific value (kJ·g^-1)	根 Root	14.50 ± 0.24^a	13.33 ± 0.29^b	13.46 ± 0.24^b
	茎 Stem	16.80 ± 0.13^a	16.32 ± 0.24^b	15.42 ± 0.12^c
	叶 Leaf	17.65 ± 0.16^a	17.37 ± 0.84^a	16.28 ± 0.76^b
去灰分热值 Ash-free calorific value (kJ·g^-1)	根 Root	16.52 ± 0.40^a	15.33 ± 0.47^b	15.27 ± 0.51^b
	茎 Stem	18.46 ± 0.21^a	18.05 ± 0.29^a	17.03 ± 0.24^b
	叶 Leaf	20.26 ± 0.23^a	19.82 ± 0.07^a	18.74 ± 0.30^b

	植物器官 Plant organ	根内球囊霉 Glomus intraradices	地表球囊霉 Glomus versiforme	对照 Control
干重热值 Gross calorific value (kJ·g^-1)	根 Root	14.50 ± 0.24^a	13.33 ± 0.29^b	13.46 ± 0.24^b
	茎 Stem	16.80 ± 0.13^a	16.32 ± 0.24^b	15.42 ± 0.12^c
	叶 Leaf	17.65 ± 0.16^a	17.37 ± 0.84^a	16.28 ± 0.76^b
去灰分热值 Ash-free calorific value (kJ·g^-1)	根 Root	16.52 ± 0.40^a	15.33 ± 0.47^b	15.27 ± 0.51^b
	茎 Stem	18.46 ± 0.21^a	18.05 ± 0.29^a	17.03 ± 0.24^b
	叶 Leaf	20.26 ± 0.23^a	19.82 ± 0.07^a	18.74 ± 0.30^b

	植物器官 Plant organ	根内球囊霉 Glomus intraradices	地表球囊霉 Glomus versiforme	对照 Control
含碳量 Carbon content (%)	根 Root	29.63 ± 1.34^a	23.45 ± 1.62^c	26.04 ± 0.23^b
	茎 Stem	42.09 ± 1.86^a	39.16 ± 0.64^a	40.94 ± 1.59^a
	叶 Leaf	47.81 ± 1.51^a	44.62 ± 5.77^a	42.76 ± 3.98^a
灰分含量 Ash content (%)	根 Root	12.22 ± 0.74^a	13.06 ± 0.85^a	11.81 ± 1.38^a
	茎 Stem	8.96 ± 3.30^b	9.60 ± 0.56^a	9.47 ± 0.66^a
	叶 Leaf	12.90 ± 0.31^a	12.36 ± 0.45^a	13.11 ± 0.87^a