中南林业科技大学学报

实心竹对水淹胁迫的光合和生理响应

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杨曦 ^a^,^b , 陈倩汐 ^a , 郭欣 ^a , 何天友 ^a , 荣俊冬 ^b , 郑郁善 ^b , 陈凌艳 ^a

中南林业科技大学学报 | 林学 2026,46(10): 114-123

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中南林业科技大学学报 |林学 2026 , 46 (10) : 114 -123

实心竹对水淹胁迫的光合和生理响应

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杨曦^a^,^b, 陈倩汐^a, 郭欣^a, 何天友^a, 荣俊冬^b, 郑郁善^b, 陈凌艳^a

作者信息

^a.福建农林大学　风景园林与艺术学院，福建　福州　350002

^b.福建农林大学　林学院，福建　福州　350002

通讯作者:

陈凌艳（fafucly@fafu.edu.cn），副教授，硕士研究生导师。

作者简介:

杨曦（yangxi_phl@163.com），硕士研究生。

Responses of Phyllostachys heteroclada f. solida to photosynthesis and physiology under waterlogging stress

Xi Yang^a^,^b, Qianxi Chen^a, Xin Guo^a, Tianyou He^a, Jundong Rong^b, Yushan Zheng^b, Lingyan Chen^a

Affiliations

^a.College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China

^b.College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China

出版时间: 2026-10-25 doi: 10.14067/j.cnki.1673-923x.2026.10.010

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摘要

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【目的】

研究不同水淹深度在特定水淹时段对实心竹的生理影响，探究对叶片光合、叶绿素荧光参数以及对抗氧化系统的作用与响应机制，从生理生态层面揭示实心竹的水淹耐受能力及对水淹胁迫的响应。

【方法】

本研究选择两年生实心竹苗，采取模拟水淹的方式，分为田间持水量70.00%的对照（CK）、根淹（GY）和深淹（SY）处理，分为Day0、Day10、Day20、Day30以及Day40共5个时间梯度，测定光合色素含量、光合气体交换参数、叶绿素荧光参数、渗透调节物质含量以及抗氧化酶活性。

【结果】

1）实心竹光合色素含量呈先下降后上升的趋势，但整体仍低于CK组，GY组叶绿素a在胁迫30 d时降至谷值，较CK组下降了48.97%。叶绿素b在两组中均为30 d时最低，分别较CK组下降了48.09%和62.15%；2）不同强度水淹处理对实心竹叶片光合气体交换参数的影响显著（P<0.05）。随水淹时间延长，各处理组净光合速率（P_n）、蒸腾速率（T_r）、气孔导度（G_s）均下降，在胁迫后期，SY组分别较CK下降了86.87%、78.02%和60.00%，胞间CO₂浓度（C_i）则持续上升。不同处理组叶绿素荧光参数差异明显，但GY组和SY组变化趋势相似，初始荧光（F_o）和非光化学淬灭系数（NPQ）呈现上升趋势、最大荧光（F_m）和光化学淬灭系数（qP）总体呈下降趋势；3）随水淹时间延长，不同水淹处理对实心竹叶片丙二醛（MDA）含量的影响不同：GY组呈“升高-降低-升高”趋势，而SY组则先升后降，并在Day30达到峰值，较CK上升了56.92%。脯氨酸（PRO）含量方面，2个处理组均持续上升；4）超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）大体呈初期快速上升后期缓慢下降的趋势。

【结论】

实心竹在水淹初期通过迅速提高SOD、POD和CAT活性来应对胁迫压力。水淹中期，水中淹没部分的叶片会出现黑斑并脱落，光合色素含量减少，光合作用也逐渐降低。随着胁迫时间延长，尽管实心竹的光合作用和叶绿素荧光参数呈削弱态势，但体内的抗氧化酶活性仍高于CK，并且叶绿素的含量也逐渐回升，这说明植物仍处在自身代谢调节阶段。综上所述，实心竹有一定耐淹能力，能在较长时间水淹下维持基本生长代谢。基于此特性，实心竹可作为有潜力的园林植物，推广应用于城乡海绵城市与滨水绿化建设。

关键词

竹类 / 水淹胁迫 / 光合 / 生理

Abstract

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【Objective】

To investigate the physiological impacts of different waterlogging depths on Phyllostachys heteroclada f. solida during specific waterlogging periods, and to explore the mechanisms underlying its effects on leaf photosynthesis, chlorophyll fluorescence characteristics, and the antioxidant system, thereby revealing its waterlogging tolerance and response strategies at the physiological and ecological levels.

【Method】

Two-year-old P. heteroclada f. solida seedlings were subjected to simulated waterlogging treatments, including a control group under normal moisture CK, GY and SY. Measurements of photosynthetic pigment content, gas exchange parameters, chlorophyll fluorescence parameters, osmoregulatory substance levels, and antioxidant enzyme activities were conducted at five time points (Day 0, Day 10, Day 20, Day 30, and Day 40).

【Result】

1) The content of photosynthetic pigments in P. heteroclada f. solida initially declines and then rises, though remaining lower than that in the CK group. In the GY group, chlorophyll a (Chl a) reaches its nadir on Day 30, decreasing by 48.97% compared to CK. Chlorophyll b (Chl b) in both waterlogging groups shows the lowest levels on Day 30, with reductions of 48.09% (GY) and 62.15% (SY) relative to CK; 2) Waterlogging intensity significantly affects photosynthetic gas exchange parameters (P<0.05). Over time, net photosynthetic rate (P_n), stomatal conductance (G_s), and transpiration rate (T_r) decline in all treatment groups, with SY showing reductions of 86.87%, 78.02% and 60.00%, respectively, compared to CK by the end of the stress period. Intercellular CO₂ concentration (C_i) increases continuously. Chlorophyll fluorescence parameters differ markedly among treatments, though GY and SY exhibit similar trends: initial fluorescence (F_o) and non-photochemical quenching (NPQ) rise, while maximum fluorescence (F_m) and photochemical quenching (qP) decline; 3) Waterlogging duration differentially influences malondialdehyde (MDA) content: GY follows a “rise-decline-rise” pattern, whereas SY peaks on Day 30 (56.92% higher than CK) before declining. Proline (PRO) content increases steadily in both treatment groups; 4) SOD, POD, and CAT activities generally increased rapidly initially and then declined slowly.

【Conclusion】

P. heteroclada f. solida responds to early waterlogging stress by rapidly elevating SOD, POD, and CAT activities. In the mid-stage, black spots appear on submerged leaves, which subsequently fall off, accompanied by reduced photosynthetic pigment content and photosynthesis. Despite the weakening of photosynthetic parameters over time, antioxidant enzyme activities remain higher than those in CK, and chlorophyll content gradually recovers, indicating that the plant is still in a phase of self-metabolic regulation. In summary, P. heteroclada f. solida demonstrates certain waterlogging tolerance, enabling it to sustain basic growth and metabolism under prolonged waterlogging. Based on this trait, it holds potential as a landscape plant for urban-rural sponge city and waterfront greening projects.

Key words

bamboo species / waterlogging stress / photosynthesis / physiology

引用本文

杨曦, 陈倩汐, 郭欣, 何天友, 荣俊冬, 郑郁善, 陈凌艳. 实心竹对水淹胁迫的光合和生理响应. 中南林业科技大学学报, 2026 , 46 (10) : 114 -123 . DOI: 10.14067/j.cnki.1673-923x.2026.10.010

Xi Yang, Qianxi Chen, Xin Guo, Tianyou He, Jundong Rong, Yushan Zheng, Lingyan Chen. Responses of Phyllostachys heteroclada f. solida to photosynthesis and physiology under waterlogging stress[J]. Journal of Central South University of Forestry & Technology, 2026 , 46 (10) : 114 -123 . DOI: 10.14067/j.cnki.1673-923x.2026.10.010

基金

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“十四五”国家重点研发计划项目(2023YFD2201201)
福建省自然科学基金项目(2023J1478)
福建农林大学科技创新专项基金项目(KFB24066)

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2026年第46卷第10期

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doi: 10.14067/j.cnki.1673-923x.2026.10.010

接收时间：2025-06-17
首发时间：2026-10-30
出版时间：2026-10-25

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出版历史

收稿日期：2025-06-17
修回日期：2025-09-23

基金

“十四五”国家重点研发计划项目(2023YFD2201201)

福建省自然科学基金项目(2023J1478)

福建农林大学科技创新专项基金项目(KFB24066)

作者信息

^a.福建农林大学　风景园林与艺术学院，福建　福州　350002

^b.福建农林大学　林学院，福建　福州　350002

通讯作者:

陈凌艳（fafucly@fafu.edu.cn），副教授，硕士研究生导师。

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https://castjournals.cast.org.cn/joweb/znlykj/CN/10.14067/j.cnki.1673-923x.2026.10.010

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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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