低磷胁迫下大豆根系分泌物对土壤中难溶性磷的影响

doi:10.3969/j.issn.1004-1524.2023.06.17

浙江农业学报 ›› 2023, Vol. 35 ›› Issue (6): 1396-1406.DOI: 10.3969/j.issn.1004-1524.2023.06.17

低磷胁迫下大豆根系分泌物对土壤中难溶性磷的影响

杨松花(), 石贵阳, 王晶琴, 陈竹^*()

贵州大学农学院,贵州贵阳 550025

收稿日期:2021-08-10 出版日期:2023-06-25 发布日期:2023-07-04
通讯作者: *陈竹,E-mail: 274586429@qq.com
作者简介:杨松花(1997—),女,贵州凯里人,硕士,主要从事植物营养学研究。E-mail: 2861575380@qq.com
基金资助:
国家自然科学基金(31860115);国家自然科学基金(32060427);贵州省教育厅青年科技人才成长项目(黔教合KY字〔2018〕100)

Effects of soybean root exudates on insoluble phosphorus in soil under low phosphorus stress

YANG Songhua(), SHI Guiyang, WANG Jingqin, CHEN Zhu^*()

College of Agriculture, Guizhou University, Guiyang 550025, China

Received:2021-08-10 Online:2023-06-25 Published:2023-07-04

摘要/Abstract

摘要：

选取10个大豆品种,通过营养液水培试验收集各品种在不同磷水平下的根系分泌物,测定有机酸组分及其分泌量,研究分泌物对土壤中难溶性磷的活化作用。结果表明,低磷胁迫影响有机酸的分泌量,Qd11、Ax、Jd23、Jd12和Fd的总有机酸分泌量在低磷胁迫下增加。不同大豆品种分泌的主要有机酸不同,Td、Cd、Qd11、Tf、Dd和Qd7以分泌草酸为主,Ax、Jd23、Jd12和Fd以分泌酒石酸为主。大豆分泌物对4种难溶性磷的活化效果整体表现为Ca-P>Al-P>O-P>Fe-P;在低磷胁迫下,Jd23对Al-P的活化效果最好,活化率为32.39%,Qd7对Fe-P的活化效果最好,活化率为12.60%,Qd11次之,为11.81%,对O-P和Ca-P活化效果最好的是Qd11,活化率分别为32.69%和41.73%。苹果酸的分泌量与Fe-P的溶解量达到显著相关,琥珀酸分泌量与钙磷的溶解量呈显著正相关。低磷胁迫影响大豆根系有机酸的分泌及其对土壤难溶性磷的活化。大豆分泌的有机酸中以草酸和酒石酸为主;整体来说,Qd11和Qd7的分泌物对4种难溶性磷的活化效果较好。

关键词: 大豆, 低磷胁迫, 根系分泌物, 有机酸, 难溶性磷

Abstract:

Through the nutrient solution hydroponics experiment, 10 different soybean varieties were selected to collect the root exudates under different phosphorus levels, determine the organic acid components and their secretion, and study the activation of the exudates on insoluble phosphorus in the soil. The results showed that low phosphorus stress affected the secretion of organic acids, and the total organic acid secretion of Qd11, Ax, Jd23, Jd12 and Fd increased under low phosphorus stress. The main organic acids secreted by different soybean varieties were different. Td, Cd, Qd11, Tf, Dd and Qd7 mainly secreted oxalic acid, while Ax, Jd23, Jd12 and Fd mainly secreted tartaric acid. The activation effect of soybean secretion on four kinds of insoluble phosphorus was Ca-P>Al-P>O-P>Fe-P; Under low phosphorus stress, Jd23 had the best activation effect on Al-P, with activation rate of 32.39%. Qd7 has the best activation effect on Fe-P, with activation rate of 12.60%, followed by Qd11, with 11.81%. Qd11 has the best activation effect on O-P and Ca-P, with activation rate of 32.69% and 41.73% respectively. The secretion of malic acid was significantly correlated with the dissolution of Fe-P, and the secretion of succinic acid was significantly positively correlated with the dissolution of calcium and phosphorus. Low phosphorus stress affected the secretion of organic acids in soybean roots and the activation of soil insoluble phosphorus. The organic acids secreted by soybean were mainly oxalic acid and tartaric acid. On the whole, the secretions of Qd11 and Qd7 had better activation effect on the four insoluble phosphorus.

Key words: soybean, low phosphorus stress, root exudate, organic acid, insoluble phosphorus

中图分类号:

S565.1

杨松花, 石贵阳, 王晶琴, 陈竹. 低磷胁迫下大豆根系分泌物对土壤中难溶性磷的影响[J]. 浙江农业学报, 2023, 35(6): 1396-1406.

YANG Songhua, SHI Guiyang, WANG Jingqin, CHEN Zhu. Effects of soybean root exudates on insoluble phosphorus in soil under low phosphorus stress[J]. Acta Agriculturae Zhejiangensis, 2023, 35(6): 1396-1406.

图/表 6

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有机酸 Organic acid	F值 F value
有机酸 Organic acid	品种 Varieties	磷水平 P level	品种×磷水平 Varieties×P level
乙酸Acetic acid	52.87^**	35.16^**	14.3^**
乳酸lactic acid	25.32^**	26.82^**	21.26^**
延胡索酸Fumaric acid	86.70^**	11.79^**	15.25^**
柠檬酸Citric acid	48.06^**	0.23	45.50^**
琥珀酸Succinic acid	29.54^**	114.86^**	27.77^**
苹果酸Malic acid	117.60^**	21.60^**	156.12^**
草酸Oxalate	105.60^**	0.01	22.06^**
酒石酸Tartaric acid	509.29^**	0.78	184.96^**
总酸Total inorganic acid	143.31^**	1.83^**	45.72^**

有机酸 Organic acid	F值 F value
有机酸 Organic acid	品种 Varieties	磷水平 P level	品种×磷水平 Varieties×P level
乙酸Acetic acid	52.87^**	35.16^**	14.3^**
乳酸lactic acid	25.32^**	26.82^**	21.26^**
延胡索酸Fumaric acid	86.70^**	11.79^**	15.25^**
柠檬酸Citric acid	48.06^**	0.23	45.50^**
琥珀酸Succinic acid	29.54^**	114.86^**	27.77^**
苹果酸Malic acid	117.60^**	21.60^**	156.12^**
草酸Oxalate	105.60^**	0.01	22.06^**
酒石酸Tartaric acid	509.29^**	0.78	184.96^**
总酸Total inorganic acid	143.31^**	1.83^**	45.72^**

大豆品种 Soybean varieties	磷水平 P level	有机酸种类及分泌量Type and secretion of organic acids
大豆品种 Soybean varieties	磷水平 P level	乙酸 Acetic acid	乳酸 lactic acid	延胡索酸 Fumaric acid	柠檬酸 Citric acid	琥珀酸 Succinic acid	苹果酸 Malic acid	草酸 Oxalate	酒石酸 Tartaric acid
Td	LP	0.109± 0.015 c	0.236± 0.051 a	0.139± 0.020 b	0.125± 0.011 a	2.165± 0.287 b	0.361± 0.041 c	9.293± 0.968 d	0.178± 0.051 e
	NP	0.051± 0.006 f	0.143± 0.034 b	0.097± 0.008 cd	0.041± 0.010 cd	1.027± 0.265 cd	0.483± 0.069 b	28.050± 8.041 a	8.403± 1.525 b
Cd	LP	0.078± 0.005 d	0.119± 0.008 cd	0.069± 0.007 e	0.086± 0.003 b	1.698± 0.274 c	0.124± 0.031 f	30.660± 3.342 a	0.159± 0.017 e
	NP	0.073± 0.013 de	0.143± 0.027 b	0.099± 0.011 cd	0.104± 0.020 cd	1.285± 0.212 bc	0.976± 0.153 a	25.850± 3.139 a	7.042± 0.421 c
Qd11	LP	0.038± 0.010 e	0.174± 0.037 b	0.100± 0.010 c	0.114± 0.014 a	1.309± 0.204 de	0.101± 0.003 fg	15.930± 1.357 b	0.118± 0.030 e
	NP	0.064± 0.014 ef	0.126± 0.028 bc	0.089± 0.007 cd	0.037± 0.002 d	1.702± 0.213 a	0.045± 0.006 e	3.025± 0.469 b	1.710± 0.443 f
Tf	LP	0.032± 0.007 e	0.103± 0.028 de	0.084± 0.009 cde	0.068± 0.010 c	1.604 0± 0.302 cd	0.082± 0.007 fg	3.856± 0.651 e	0.089± 0.003 e
	NP	0.082± 0.008 cde	0.110± 0.009 bc	0.067± 0.008 ef	0.053± 0.003 c	1.459± 0.136 ab	0.065± 0.006 de	3.200± 0.493 b	1.898± 0.358 f
Dd	LP	0.100± 0.013 cd	0.065± 0.005 ef	0.083± 0.014 cde	0.056± 0.017 c	3.030± 0.217 a	0.054± 0.003 g	12.080± 0.459 c	0.149± 0.042 e
	NP	0.107± 0.009 c	0.230± 0.007 a	0.100± 0.008 c	0.091± 0.002 c	0.866± 0.088 def	0.156± 0.010 cd	5.156± 0.599 b	4.781± 0.071 d
Ax	LP	0.139± 0.027 b	0.146± 0.004 bc	0.089± 0.009 cd	0.034± 0.006 de	1.059± 0.085 e	0.510± 0.019 b	1.923± 0.308 ef	12.410± 0.303 b
	NP	0.179± 0.026 a	0.204± 0.037 a	0.085± 0.014 d	0.035± 0.007 d	0.729± 0.100 ef	0.157± 0.022 cd	2.374± 0.539 b	2.127± 0.574 ef
Jd23	LP	0.025± 0.001 e	0.036± 0.004 f	0.080± 0.002 de	0.023± 0.002 def	1.060± 0.056 e	0.295± 0.039 d	1.464± 0.178 f	19.906± 0.901 a
	NP	0.140± 0.022 b	0.209± 0.024 a	0.069± 0.005 e	0.036± 0.005 d	1.002± 0.170 cde	0.161± 0.011 cd	2.800± 0.160 b	15.880± 0.548 a
Jd12	LP	0.041± 0.003 e	0.040± 0.006 f	0.217± 0.007 a	0.019± 0.003 ef	1.680± 0.057 c	0.231± 0.002 e	1.448± 0.142 f	12.234± 0.873 b
	NP	0.096± 0.003 cd	0.085± 0.012 c	0.156± 0.007 a	0.088± 0.006 ab	0.757± 0.025 def	0.191± 0.010 c	3.327± 0.119 b	4.922± 0.903 d
Fd	LP	0.194± 0.038 a	0.035± 0.002 f	0.068± 0.002 e	0.013± 0.001 f	0.638± 0.009 f	0.108± 0.019 fg	1.255± 0.290 f	5.796± 0.251 c
	NP	0.920± 0.008 a	0.043± 0.009 d	0.054± 0.005 f	0.036± 0.002 d	0.628± 0.021 f	0.065± 0.008 de	1.905± 0.242 b	1.241± 0.216 f
Qd7	LP	0.083± 0.007 cd	0.120± 0.021 cd	0.085± 0.007 cde	0.037± 0.008 d	1.276± 0.071 de	1.047± 0.065 a	1.732± 0.092 ef	1.437± 0.165 d
	NP	0.083± 0.012 cde	0.090± 0.009 c	0.118± 0.008 b	0.043± 0.006 cd	1.274± 0.126 bc	0.088± 0.011 de	3.497± 0.094 b	3.195± 0.257 e

大豆品种 Soybean varieties	磷水平 P level	有机酸种类及分泌量Type and secretion of organic acids
大豆品种 Soybean varieties	磷水平 P level	乙酸 Acetic acid	乳酸 lactic acid	延胡索酸 Fumaric acid	柠檬酸 Citric acid	琥珀酸 Succinic acid	苹果酸 Malic acid	草酸 Oxalate	酒石酸 Tartaric acid
Td	LP	0.109± 0.015 c	0.236± 0.051 a	0.139± 0.020 b	0.125± 0.011 a	2.165± 0.287 b	0.361± 0.041 c	9.293± 0.968 d	0.178± 0.051 e
	NP	0.051± 0.006 f	0.143± 0.034 b	0.097± 0.008 cd	0.041± 0.010 cd	1.027± 0.265 cd	0.483± 0.069 b	28.050± 8.041 a	8.403± 1.525 b
Cd	LP	0.078± 0.005 d	0.119± 0.008 cd	0.069± 0.007 e	0.086± 0.003 b	1.698± 0.274 c	0.124± 0.031 f	30.660± 3.342 a	0.159± 0.017 e
	NP	0.073± 0.013 de	0.143± 0.027 b	0.099± 0.011 cd	0.104± 0.020 cd	1.285± 0.212 bc	0.976± 0.153 a	25.850± 3.139 a	7.042± 0.421 c
Qd11	LP	0.038± 0.010 e	0.174± 0.037 b	0.100± 0.010 c	0.114± 0.014 a	1.309± 0.204 de	0.101± 0.003 fg	15.930± 1.357 b	0.118± 0.030 e
	NP	0.064± 0.014 ef	0.126± 0.028 bc	0.089± 0.007 cd	0.037± 0.002 d	1.702± 0.213 a	0.045± 0.006 e	3.025± 0.469 b	1.710± 0.443 f
Tf	LP	0.032± 0.007 e	0.103± 0.028 de	0.084± 0.009 cde	0.068± 0.010 c	1.604 0± 0.302 cd	0.082± 0.007 fg	3.856± 0.651 e	0.089± 0.003 e
	NP	0.082± 0.008 cde	0.110± 0.009 bc	0.067± 0.008 ef	0.053± 0.003 c	1.459± 0.136 ab	0.065± 0.006 de	3.200± 0.493 b	1.898± 0.358 f
Dd	LP	0.100± 0.013 cd	0.065± 0.005 ef	0.083± 0.014 cde	0.056± 0.017 c	3.030± 0.217 a	0.054± 0.003 g	12.080± 0.459 c	0.149± 0.042 e
	NP	0.107± 0.009 c	0.230± 0.007 a	0.100± 0.008 c	0.091± 0.002 c	0.866± 0.088 def	0.156± 0.010 cd	5.156± 0.599 b	4.781± 0.071 d
Ax	LP	0.139± 0.027 b	0.146± 0.004 bc	0.089± 0.009 cd	0.034± 0.006 de	1.059± 0.085 e	0.510± 0.019 b	1.923± 0.308 ef	12.410± 0.303 b
	NP	0.179± 0.026 a	0.204± 0.037 a	0.085± 0.014 d	0.035± 0.007 d	0.729± 0.100 ef	0.157± 0.022 cd	2.374± 0.539 b	2.127± 0.574 ef
Jd23	LP	0.025± 0.001 e	0.036± 0.004 f	0.080± 0.002 de	0.023± 0.002 def	1.060± 0.056 e	0.295± 0.039 d	1.464± 0.178 f	19.906± 0.901 a
	NP	0.140± 0.022 b	0.209± 0.024 a	0.069± 0.005 e	0.036± 0.005 d	1.002± 0.170 cde	0.161± 0.011 cd	2.800± 0.160 b	15.880± 0.548 a
Jd12	LP	0.041± 0.003 e	0.040± 0.006 f	0.217± 0.007 a	0.019± 0.003 ef	1.680± 0.057 c	0.231± 0.002 e	1.448± 0.142 f	12.234± 0.873 b
	NP	0.096± 0.003 cd	0.085± 0.012 c	0.156± 0.007 a	0.088± 0.006 ab	0.757± 0.025 def	0.191± 0.010 c	3.327± 0.119 b	4.922± 0.903 d
Fd	LP	0.194± 0.038 a	0.035± 0.002 f	0.068± 0.002 e	0.013± 0.001 f	0.638± 0.009 f	0.108± 0.019 fg	1.255± 0.290 f	5.796± 0.251 c
	NP	0.920± 0.008 a	0.043± 0.009 d	0.054± 0.005 f	0.036± 0.002 d	0.628± 0.021 f	0.065± 0.008 de	1.905± 0.242 b	1.241± 0.216 f
Qd7	LP	0.083± 0.007 cd	0.120± 0.021 cd	0.085± 0.007 cde	0.037± 0.008 d	1.276± 0.071 de	1.047± 0.065 a	1.732± 0.092 ef	1.437± 0.165 d
	NP	0.083± 0.012 cde	0.090± 0.009 c	0.118± 0.008 b	0.043± 0.006 cd	1.274± 0.126 bc	0.088± 0.011 de	3.497± 0.094 b	3.195± 0.257 e

低磷胁迫下大豆根系分泌物对土壤中难溶性磷的影响

Effects of soybean root exudates on insoluble phosphorus in soil under low phosphorus stress

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