Characteristics of chlorophyll-fluorescence parameters of Suaeda microphylla Pall.and their responses to soil factors in different water-salt habitats

doi:10.6048/j.issn.1001-4330.2024.02.026

Xinjiang Agricultural Sciences ›› 2024, Vol. 61 ›› Issue (2): 485-494.DOI: 10.6048/j.issn.1001-4330.2024.02.026

• Microbes·Physiology and Biochemistry·Animal Husbandry Veterinarian • Previous Articles Next Articles

Characteristics of chlorophyll-fluorescence parameters of Suaeda microphylla Pall.and their responses to soil factors in different water-salt habitats

Reyihan Abulizi¹^,²(), HE Xuemin¹^,²(), YANG Huan¹^,², HUANG Pengcheng¹^,², FENG Haipeng¹^,², WANG Yongzhi¹^,²

1. College of Ecology and Environment, Xinjiang University/Key Laboratory of Oasis Ecology, Ministry of Education, Urumqi 830017, China
2. Xinjiang Jinghe Observation and Research Station of Temperate Desert Ecosystem, Ministry of Education, Jinghe Xinjiang 833300, China

Received:2023-06-05 Online:2024-02-20 Published:2024-03-19
Correspondence author: HE Xuemin(1986-), male, from Xincai Henan, associate professor, research field:desert plant physiology and ecology,(E-mail)hxm@xju.edu.cn
Supported by:
National Natural Science Foundation of China(32101360);National Natural Science Foundation of China(31760168);Innovation Environment Construction Special Project of Xinjiang Uygur Autonomous Region-Science and Technology Innovation Base Construction Project(PT2107);Central Government Guiding Local Science and Technology Development Fund Project of Xinjiang Uygur Autonomous Region(ZYYD2023A03)

不同水盐生境下小叶碱蓬叶绿素荧光参数特征及其对土壤因子的响应

热依汗·阿布力孜¹^,²(), 何学敏¹^,²(), 杨欢¹^,², 黄鹏程¹^,², 冯海鹏¹^,², 王勇志¹^,²

1.新疆大学生态与环境学院/绿洲生态教育部重点实验室, 乌鲁木齐 830017
2.新疆精河温带荒漠生态系统教育部野外科学观测研究站, 新疆精河 833300

通讯作者: 何学敏(1986-),男,河南新蔡人,副教授,博士,硕士生导师,研究方向为荒漠植物生理生态,(E-mail)hxm@xju.edu.cn
作者简介:热依汗·阿布力孜(1996-),女,新疆吐鲁番人,硕士,研究方向为荒漠植物生理生态,(E-mail)2454459083@qq.com
基金资助:
国家自然科学基金项目(32101360);国家自然科学基金项目(31760168);新疆维吾尔自治区创新环境建设专项-科技创新基地建设项目(PT2107);新疆维吾尔自治区中央引导地方科技发展资金项目(ZYYD2023A03)

Abstract

Abstract:

【Objective】 This project aims to study the photosynthetic response mechanism of halophyte in arid region in order to provide theoretical and scientific support for soil salinization bioreremediation technology.【Methods】 In this paper, the typical halophyte Suaeda microphylla Pall.in the National Nature Reserve was studied and three types of habitats:high water salt(habitat Ⅰ)salt(habitat Ⅱ), low water and high salt water(habitat Ⅲ)were selected to measure and analyze its Suaeda microphylla Pall.chlorophyll fluorescence parameters under three habitat Suaeda microphylla Pall.characteristics of chlorophyll fluorescence parameters, thus clarifying the effects of soil factors on the fluorescence characteristics of the three habitats.【Results】 The results showed that there were significant differences in chlorophyll fluorescence parameters among the three habitats(P<0.05).F_o, F_m and NPQ gradually increased with the change of habitat, with the maximum values in the habitat Ⅲ(142.95, 609.42 and 1.65)and the minimum values in the habitat Ⅰ(87.6, 358.06 and 0.96).F_v'/F_m' increased first and then decreased, the maximum value occurs in environment Ⅲ(0.53),the minimum value appears in scenario Ⅱ(0.39), respectively; F_o was positively correlated with F_m and NPQ(P<0.01), the correlation coefficient of F_m was the largest, which was 0.99; Three key chlorophyll fluorescence parameters, F_o, F_m and NPQ, were screened out by principal component analysis, and their common factor variances were 0.947, 0.969 and 0.824; Salt, available phosphorus and pH could explain 17.2%, 24.2% and 13.5% of the variation of chlorophyll fluorescence parameters, while water did not.【Conclusion】 In conclusion, in the high-salt habitat, the structure and physiological state of leaves PSⅡ were damaged, photosynthesis was blocked, and plant growth was inhibited eventually.

Key words: soil salinization; different habitats; Suaeda microphylla Pall.; chlorophyll fluorescence parameters

摘要：

【目的】研究干旱区盐生植物光合响应机理,为土壤盐渍化生物修复技术提供理论和科学支撑。【方法】以新疆艾比湖湿地国家级自然保护区典型盐生植物小叶碱蓬(Suaeda microphylla Pall.)为研究对象,选取保护区内高水高盐(生境Ⅰ)、低水中盐(生境Ⅱ)和高水中盐(生境Ⅲ)三种生境类型,测定其小叶碱蓬叶绿素荧光参数,分析三种生境下小叶碱蓬叶绿素荧光参数特性变化,研究三种生境下土壤因子对小叶碱蓬叶绿素荧光特性的影响。【结果】三种生境下小叶碱蓬各叶绿素荧光参数存在显著差异(P<0.05)。其中F_o、F_m和NPQ随着生境的变化逐渐升高,最大值出现在生境Ⅲ(142.95、609.42和1.65),最小值出现在生境Ⅰ(87.6、358.06和0.96)。F_v'/F_m'呈先升高再下降的趋势,最大值出现在生境Ⅱ(0.53),最小值出现在生境Ⅲ(0.39);F_o与F_m、NPQ呈极显著正相关(P<0.01),其中F_m的相关系数最大,为0.99;筛选出F_o、F_m和NPQ三个与逆境胁迫相关性较好的叶绿素荧光参数,其公因子方差为0.947、0.969、0.824;盐分、速效磷和pH对小叶碱蓬叶绿素荧光参数变异起到了较好的解释,其解释量为17.2%、24.2%、13.5%,而水分未起解释作用。【结论】在高盐生境下,小叶碱蓬叶片PSⅡ的结构和生理状态受到损伤,光合作用受阻,最终植物生长受到抑制。

关键词: 土壤盐渍化, 不同生境, 小叶碱蓬, 叶绿素荧光参数

CLC Number:

Reyihan Abulizi, HE Xuemin, YANG Huan, HUANG Pengcheng, FENG Haipeng, WANG Yongzhi. Characteristics of chlorophyll-fluorescence parameters of Suaeda microphylla Pall.and their responses to soil factors in different water-salt habitats[J]. Xinjiang Agricultural Sciences, 2024, 61(2): 485-494.

热依汗·阿布力孜, 何学敏, 杨欢, 黄鹏程, 冯海鹏, 王勇志. 不同水盐生境下小叶碱蓬叶绿素荧光参数特征及其对土壤因子的响应[J]. 新疆农业科学, 2024, 61(2): 485-494.

Figures/Tables 6

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生境 Habitat	pH	电导率 Electrical conductivity (mS/cm)	土壤含盐量 Soil salinity (g/kg)	土壤含水率 Soil water content (%)	土壤有机质 Soil organic matter (g/kg)	土壤全氮 Soil total nitrogen (g/kg)	土壤速效磷 Soil available phosphorus (mg/kg)
Ⅰ	8.1±0.07^a	8.9±0.68^bc	8.62±0.65^bc	13.59±0.51^b	9.46±0.9^b	1.49±0.7^a	13.59±0.51^b
Ⅱ	8.12±0.03^a	5.17±0.47^a	5.05±0.45^a	7.98±0.68^a	6.61±0.31^ab	0.94±0.42^a	7.98±0.68^a
Ⅲ	7.95±0.06^a	6.8±0.61^ab	6.61±0.58^ab	12.82±0.45^b	8.57±1.37^ab	0.97±0.56^a	12.82±0.45^b

生境 Habitat	pH	电导率 Electrical conductivity (mS/cm)	土壤含盐量 Soil salinity (g/kg)	土壤含水率 Soil water content (%)	土壤有机质 Soil organic matter (g/kg)	土壤全氮 Soil total nitrogen (g/kg)	土壤速效磷 Soil available phosphorus (mg/kg)
Ⅰ	8.1±0.07^a	8.9±0.68^bc	8.62±0.65^bc	13.59±0.51^b	9.46±0.9^b	1.49±0.7^a	13.59±0.51^b
Ⅱ	8.12±0.03^a	5.17±0.47^a	5.05±0.45^a	7.98±0.68^a	6.61±0.31^ab	0.94±0.42^a	7.98±0.68^a
Ⅲ	7.95±0.06^a	6.8±0.61^ab	6.61±0.58^ab	12.82±0.45^b	8.57±1.37^ab	0.97±0.56^a	12.82±0.45^b

叶绿素荧光参数 Chlorophyll Fluorescence Parameter	主成分1 Principal Component 1	主成分2 Principal Component 2	主成分3 Principal Component 3	综合得分 Comprehensive score	综合位次 Comprehensive ranking	公因子方差 Communality
初始荧光F_o	0.900	0.252	0.270	0.552	2	0.947
最大荧光F_m	0.876	0.393	0.216	0.579	1	0.969
PSⅡ最大光化学效F_v/F_m	0.362	0.862	-0.034	0.448	4	0.875
光合效率潜能F_v/F_o	0.305	0.920	-0.134	0.426	5	0.958
PSⅡ反应中心的激发能捕获效率F_v'/F_m'	-0.686	0.622	-0.231	-0.164	8	0.911
PSⅡ实际的光化学量子效率Φ_PS _Ⅱ	-0.757	0.578	0.255	-0.152	7	0.972
电子传递效率ETR	-0.772	0.564	0.224	-0.168	9	0.965
光化学淬灭系数qP	-0.397	-0.167	0.874	-0.139	6	0.949
非光化学淬灭系数NPQ	0.882	0.079	0.198	0.479	3	0.824
特征值Eigenvalues	4.379	2.881	1.110
贡献率Contribution(%)	48.655	32.007	12.338
累计贡献率 Cumulative contribution(%)	48.655	80.662	93.000

叶绿素荧光参数 Chlorophyll Fluorescence Parameter	主成分1 Principal Component 1	主成分2 Principal Component 2	主成分3 Principal Component 3	综合得分 Comprehensive score	综合位次 Comprehensive ranking	公因子方差 Communality
初始荧光F_o	0.900	0.252	0.270	0.552	2	0.947
最大荧光F_m	0.876	0.393	0.216	0.579	1	0.969
PSⅡ最大光化学效F_v/F_m	0.362	0.862	-0.034	0.448	4	0.875
光合效率潜能F_v/F_o	0.305	0.920	-0.134	0.426	5	0.958
PSⅡ反应中心的激发能捕获效率F_v'/F_m'	-0.686	0.622	-0.231	-0.164	8	0.911
PSⅡ实际的光化学量子效率Φ_PS _Ⅱ	-0.757	0.578	0.255	-0.152	7	0.972
电子传递效率ETR	-0.772	0.564	0.224	-0.168	9	0.965
光化学淬灭系数qP	-0.397	-0.167	0.874	-0.139	6	0.949
非光化学淬灭系数NPQ	0.882	0.079	0.198	0.479	3	0.824
特征值Eigenvalues	4.379	2.881	1.110
贡献率Contribution(%)	48.655	32.007	12.338
累计贡献率 Cumulative contribution(%)	48.655	80.662	93.000

土壤因子 Soil factors	解释量 Explains (%)	贡献率 Contribution (%)	F	P
土壤速效磷 Soil available phosphorus	17.2	24.3	1.5	0.254
土壤含盐量 Soil salinity	24.2	34.2	2.5	0.076
pH	13.5	19.1	1.5	0.216
土壤全氮 Soil total nitrogen	6.7	9.4	0.7	0.63
土壤有机质 Soil organic matter	9.2	13.0	0.9	0.474

Characteristics of chlorophyll-fluorescence parameters of Suaeda microphylla Pall.and their responses to soil factors in different water-salt habitats

不同水盐生境下小叶碱蓬叶绿素荧光参数特征及其对土壤因子的响应

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