耐盐植物促生菌<italic style="font-style: italic">Enterobacter</italic> sp. Av16和<italic style="font-style: italic">Acinetobacter</italic> sp. Av23减轻盐胁迫对白麻（<italic style="font-style: italic">Apocynum pictum</italic>）种子萌发和幼苗光合作用的抑制

王雪; 姜黎; 葛瑶; 邹一萍; 蔡庆生; 夏妍; 娄来清

doi:10.1631/jzus.B2500049

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耐盐植物促生菌Enterobacter sp. Av16和Acinetobacter sp. Av23减轻盐胁迫对白麻（Apocynum pictum）种子萌发和幼苗光合作用的抑制

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Research Article | Updated：2026-06-23

耐盐植物促生菌Enterobacter sp. Av16和Acinetobacter sp. Av23减轻盐胁迫对白麻（Apocynum pictum）种子萌发和幼苗光合作用的抑制
Halotolerant plant growth-promoting bacteria Enterobacter sp. Av16 and Acinetobacter sp. Av23 enhance seed germination and seedling photosynthesis of Apocynum pictum under salt stress
浙江大学学报（英文版）（B辑：生物医学和生物技术） 2026年27卷第6期页码：656-670
Affiliations：

1.College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
2.State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
Funds：

the National Key Research and Development Program of Xinjiang Autonomous Region, China(2023B03014);the Fundamental Research Funds for the Central Universities, China(KYZ201636)
DOI：10.1631/jzus.B2500049
中图分类号：
CSTR：
收稿：2025-01-25，

修回：2025-04-17，

网络首发：2026-04-27，

纸质出版：2026-06-15
Accepted：

王雪,姜黎,葛瑶等.耐盐植物促生菌,Enterobacter sp. Av16和,Acinetobacter sp. Av23减轻盐胁迫对白麻（,Apocynum pictum）种子萌发和幼苗光合作用的抑制[J].浙江大学学报（英文版）（B辑：生物医学和生物技术）,2026,27(06):656-670.

Xue WANG, Li JIANG, Yao GE, et al. Halotolerant plant growth-promoting bacteria Enterobacter sp. Av16 and Acinetobacter sp. Av23 enhance seed germination and seedling photosynthesis of Apocynum pictum under salt stress[J]. Journal of Zhejiang University-SCIENCE B, 2026, 27(6): 656-670. DOI: 10.1631/jzus.B2500049.
王雪,姜黎,葛瑶等.耐盐植物促生菌,Enterobacter sp. Av16和,Acinetobacter sp. Av23减轻盐胁迫对白麻（,Apocynum pictum）种子萌发和幼苗光合作用的抑制[J].浙江大学学报（英文版）（B辑：生物医学和生物技术）,2026,27(06):656-670. DOI： 10.1631/jzus.B2500049.

Xue WANG, Li JIANG, Yao GE, et al. Halotolerant plant growth-promoting bacteria Enterobacter sp. Av16 and Acinetobacter sp. Av23 enhance seed germination and seedling photosynthesis of Apocynum pictum under salt stress[J]. Journal of Zhejiang University-SCIENCE B, 2026, 27(6): 656-670. DOI: 10.1631/jzus.B2500049. DOI：

摘要

为提升药用、茶用和纤维

用盐生植物白麻（

Apocynum pictum

Schrenk）在盐碱地的栽培潜力，探究了耐盐植物促生菌（PGPB）对其种子萌发和幼苗生长的调控作用。研究结果表明，接种

Enterobacter

sp. Av16和

Acinetobacter

sp. Av23均可显著提高白麻种子的发芽率，并缓解盐胁迫对其幼苗生长的抑制作用。在盐胁迫下，PGPB可增加白麻的叶宽、叶长和叶面积，并提高叶片中光合色素（如叶绿素

和类胡萝卜素）的含量。更重要的是，PGPB分别通过稳定光系统和优化电子传递过程来减轻盐胁迫造成的光合机构损伤，主要表现在PGPB增加叶绿体反应中心密度（RC/CS

）以及提高电子向光系统I的转移效率（δ

和Φ

）。此外，在盐胁迫下，PGPB能改善叶绿素荧光特性和关键光合参数，如最大量子产率（Φ

）、光合性能指数（PI

abs

和PI

total

）、胞间CO

浓度、蒸腾速率和净光合速率（

）等；PGPB还可通过激活植物体内的抗氧化酶，如超氧化物歧化酶（SOD）和过氧化氢酶（CAT），来减少活性氧（ROS）在白麻幼苗中的积累，从而降低其受到的氧化胁迫。综上所述，PGPB可分别通过稳定光系统、提高气孔气体交换能力和减轻氧化损伤，增强白麻的种子萌发和光合能力。上述发现为利用PGPB提升白麻抗盐能力和盐碱地栽培适应性提供了重要理论依据。

Abstract

Apocynum pictum

Schrenk

a halophyte

is commonly used as a traditional Chinese medicine

tea

and fiber crop. To improve the growth of

pictum

in saline soil

its responses to halotolerant plant growth-promoting ba

cteria (PGPB) were investigated at germination and during early growth stages. Inoculation with either

Enterobacter

sp. Av16 or

Acinetobacter

sp. Av23 significantly improved seed germination percentage and alleviated the adverse effects of salinity on seedling growth of

pictum

. Under salt stress

PGPB increased leaf area and improved photosynthetic pigments

including chlorophyll

and carotenoids

as well as intercellular carbon dioxide (

) and transpiration rate (

). More importantly

PGPB alleviated salt-induced damage to the photosynthetic apparatus by stabilizing the photosystems and optimizing electron transport processes. This was evidenced by increases in the density of reaction centers per cross-section (RC/CS

) and the efficiencies of electron transfer to photosystem I (δ

and Φ

). Consequently

PGPB improved chlorophyll fluorescence and key photosynthetic parameters

including the maximum quantum yield (Φ

)

performance index on absorption basis (PI

abs

)

overall performance index (PI

total

)

and net photosynthetic rate (

). Furthermore

PGPB activated antioxidant enzymes

such as superoxide dismutase (SOD) and catalase (CAT)

reducing the accumulation of reactive oxygen species (ROS) in

pictum

. In summary

PGPB enhanced

pictum

seed germination and photosynthetic capacity by stabilizing photosystems

improving stomatal gas exchange

and mitigating oxidative stress under salt stress. These findings highlight the potential of PGPB inoculation as a sustainable strategy to enhance salt resilience in

pictum

关键词

Keywords

references

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耐盐植物促生菌Enterobacter sp. Av16和Acinetobacter sp. Av23减轻盐胁迫对白麻（Apocynum pictum）种子萌发和幼苗光合作用的抑制

Halotolerant plant growth-promoting bacteria Enterobacter sp. Av16 and Acinetobacter sp. Av23 enhance seed germination and seedling photosynthesis of Apocynum pictum under salt stress

DOI：10.1631/jzus.B2500049

摘要

Abstract

关键词

Keywords

references