中南林业科技大学学报

不同磷效率南酸枣家系幼苗对低磷胁迫的生长及生理响应

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吴敏 ¹ , 陈明皋 ¹ , 刘攀峰 ² , 童琪 ³ , 童方平 ¹ , 熊振宇 ¹ , 陈瑞 ¹ , 李贵 ¹

中南林业科技大学学报 | 林学 2026,46(7): 80-89

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中南林业科技大学学报 |林学 2026 , 46 (7) : 80 -89

不同磷效率南酸枣家系幼苗对低磷胁迫的生长及生理响应

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吴敏¹, 陈明皋¹, 刘攀峰², 童琪³, 童方平¹, 熊振宇¹, 陈瑞¹, 李贵¹

作者信息

^1.湖南省林业科学院，湖南　长沙　410004

^2.中国林业科学研究院　经济林研究所，河南　郑州　450000

^3.贵州省植物园，贵州　贵阳　550004

通讯作者:

李贵（ligui@hnlky.cn），副研究员，博士

陈瑞（chenrui@hnlky.cn），副研究员，硕士。

作者简介:

吴敏（wumin@hnlky.cn），助理研究员，硕士。

Growth and physiological responses to low phosphorus stress in seedlings of Choerospondias axillaris families with different phosphorus efficiencies

Min Wu¹, Minggao Chen¹, Panfeng Liu², Qi Tong³, Fangping Tong¹, Zhenyu Xiong¹, Rui Chen¹, Gui Li¹

Affiliations

^1.Hunan Academy of Forestry, Changsha 410004, Hunan, China

^2.Institute of Economic Forestry, Chinese Academy of Forestry Sciences, Zhengzhou 450000, Henan, China

^3.Guizhou Botanical Garden, Guiyang 550004, Guizhou, China

出版时间: 2026-07-25 doi: 10.14067/j.cnki.1673-923x.2026.07.008

文章导航

摘要

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【目的】

研究不同磷效率南酸枣家系适应低磷胁迫的关键生长及生理机制，为后续培育磷高效优良南酸枣品种提供理论依据。

【方法】

以2个磷高效南酸枣家系（L56、LF001）和2个磷低效南酸枣家系（L44、R27）为试验材料，设正常磷（16.0 mg/g，NP）和低磷（0.2 mg/g，LP）2个处理，开展盆栽试验，测定各家系地径、苗高、生物量、组织磷含量、根系活力以及根系酸性磷酸酶（ACP）、超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）、硝酸还原酶（NR）活性等生长及生理指标，分析不同磷效率南酸枣家系苗期主要形态及生理指标对低磷胁迫的响应差异。

【结果】

1）4个南酸枣家系在低磷胁迫下生长均受到显著抑制，同时其根冠比、根系活力、磷利用效率（PUE）、POD活性显著升高，ACP、NR活性呈现降低趋势，SOD、CAT活性均有升高趋势；各指标对低磷胁迫的响应存在显著的家系差异。2）在低磷胁迫下，家系L56、LF001除苗高外，其地径、根系干物质量、总干物质量等生长指标、根系活力及ACP、SOD、NR活性、PUE等生理指标显著高于家系L44、R27。3）抗氧化酶系统（SOD、POD、CAT）对低磷胁迫的响应存在明显的家系差异性：L56呈现出极高的SOD活性及较高的POD、CAT活性；LF001呈现出极高的POD活性及较高的SOD、CAT活性；R27表现为较高的POD活性，但SOD、CAT活性较低；L44则呈现出较高的CAT活性，但POD、SOD活性较低。4）相关性分析表明，南酸枣幼苗期根冠比、根系活力、抗氧化酶活性（SOD、POD、CAT）之间均呈显著正相关，NR活性与ACP活性、地径、根系干物质量、地上部分干物质量等生长指标呈显著正相关。地上部分磷积累量与地上部分干物质量呈极显著正相关，但与PUE呈极显著负相关。

【结论】

家系L56、LF001属于“高积累、高效率”的协同高效型家系。

关键词

南酸枣 / 低磷胁迫 / 磷效率 / 根系活力 / 抗氧化酶

Abstract

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【Objective】

To investigate the key growth and physiological mechanisms underlying the adaptation of different families of Choerospondias axillaris to low phosphorus stress, so as to provide theoretical basis for the subsequent cultivation of high phosphorus efficiency and excellent varieties.

【Method】

High-phosphorus-efficient families (L56, LF001) and low-phosphorus-sensitive families (L44, R27) were selected as experimental materials. A pot experiment was conducted under two phosphorus levels: normal phosphorus (16.0 mg/g, NP) and low phosphorus (0.2 mg/g, LP). Growth and physiological indices, including ground diameter, plant height, biomass, tissue phosphorus content, root activity, the activities of acid phosphatase (ACP), superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and nitrate reductase (NR) in rootswere measured to analyze the responses of morphological and physiological traits of different families to low phosphorus stress at the seedling stage.

【Result】

1) Under LP stress, the growth of four families was significantly inhibited, while the root-to-shoot ratio, root activity, POD activities and phosphorus use efficiency (PUE) increased significantly. ACP and NR activities showed a decreasing trend, whereas SOD and CAT activities tended to increase. The responses of these indicators to LP stress exhibited significant variation among families; 2) Under low phosphorus stress, except for seedling height, the growth indexes such as ground diameter, root dry matter mass, total dry matter mass accumulation, root activity, ACP, SOD, NR activity and PUE of family L56 and LF001 were significantly higher than those of family L44 and R27; 3) There were obvious family differences in the response of antioxidant enzyme system (SOD, POD, CAT) to low phosphorus stress: L56 showed extremely high SOD activity and high POD and CAT activity; lF001 showed extremely high POD activity and high SOD and CAT activity. R27 showed higher POD activity, but lower SOD and CAT activity. L44 showed higher CAT activity, but lower POD and SOD activity; 4) Correlation analysis showed that there was a significant positive correlation between root-shoot ratio, root activity and antioxidant enzyme activity (SOD, POD, CAT) of Choerospondias axillaris at seedling stage. There was a significant positive correlation between NR and ACP, ground diameter, root dry weight, aboveground part dry weight and other growth indexes. The aboveground P accumulation was significantly positively correlated with aboveground part dry matter, but significantly negatively correlated with PUE.

【Conclusion】

L56 and LF001 belong to the synergistic and efficient type of high accumulation and high efficiency.

Key words

Choerospondias axillaris / low phosphorus stress / phosphorus efficiency / root activity / antioxidant enzymes

引用本文

吴敏, 陈明皋, 刘攀峰, 童琪, 童方平, 熊振宇, 陈瑞, 李贵. 不同磷效率南酸枣家系幼苗对低磷胁迫的生长及生理响应. 中南林业科技大学学报, 2026 , 46 (7) : 80 -89 . DOI: 10.14067/j.cnki.1673-923x.2026.07.008

Min Wu, Minggao Chen, Panfeng Liu, Qi Tong, Fangping Tong, Zhenyu Xiong, Rui Chen, Gui Li. Growth and physiological responses to low phosphorus stress in seedlings of Choerospondias axillaris families with different phosphorus efficiencies[J]. Journal of Central South University of Forestry & Technology, 2026 , 46 (7) : 80 -89 . DOI: 10.14067/j.cnki.1673-923x.2026.07.008

基金

收起

国家重点研发计划项目(2024YFD220050103)
湖南省重点研发计划项目(2025AQ2003)

参考文献

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2026年第46卷第7期

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文章信息

doi: 10.14067/j.cnki.1673-923x.2026.07.008

接收时间：2025-07-26
首发时间：2026-10-30
出版时间：2026-07-25

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文章信息

作者

出版历史

收稿日期：2025-07-26
修回日期：2025-11-16

基金

国家重点研发计划项目(2024YFD220050103)

湖南省重点研发计划项目(2025AQ2003)

作者信息

^1.湖南省林业科学院，湖南　长沙　410004

^2.中国林业科学研究院　经济林研究所，河南　郑州　450000

^3.贵州省植物园，贵州　贵阳　550004

通讯作者:

李贵（ligui@hnlky.cn），副研究员，博士

陈瑞（chenrui@hnlky.cn），副研究员，硕士。

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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