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花生根系响应低pH胁迫的形态及生理特性研究.

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Title: 花生根系响应低pH胁迫的形态及生理特性研究.
Alternate Title: Root morphology and physiology responses of peanuts seedlings to low-pH stress.
Authors: 刘玲1 haasliuling@163.com, 张翔1 zxtf203@163.com, 索炎炎1, 李亮1, 段贤杰2, 徐凤丹1, 邱岭军1, 司贤宗1, 李倩1, 闫萌1, 程培军1
Source: Chinese Journal of Oil Crop Sciences. 2026, Vol. 48 Issue 3, p118-134. 17p.
Subject Terms: *Plant root morphology, *Soil acidity, *Transcriptomes, *Hydroponics, *Lignin structure, *Antioxidants, *Peanut growing, *Root growth
Abstract (English): To investigate the mechanism of peanut root response to low pH stress, hydroponic experiments were conducted with the cultivar Yuanza 9307 under varying pH conditions (pH 3.0-6.0) to systematically examine growth phenotypes and physiological characteristics, transcriptome sequencing was employed to identify key path‐ ways and genes. Results indicated that compared to pH 6.0, low-pH stress significantly inhibited plant biomass ac‐ cumulation, with a notable reduction in root-to-shoot ratio at pH ≤ 3.5. In the hydtoponic system with pH 3.5, root activity decreased, root morphology was impaired, and root tip structure was damaged. Transcriptome analysis re‐ vealed that low-pH stress induced the upregulation of genes associated with antioxidant metabolism and lignin bio ‐ synthesis, accompanied by enhanced antioxidant enzyme activities and increased lignin content. Concurrently, genes involved in cell wall metabolism and signal transduction-such as those encoding lectin proteins, GDSL-motif lipases, TMV resistance proteins, and endoglucan transferases-were significantly induced in roots, suggesting their potential roles in regulating root growth under low pH conditions. This study provides a theoretical foundation for further deciphering the molecular mechanisms of peanut tolerance to low-pH stress. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 为探究花生根系响应低 pH 胁迫的机制, 本研究以花生品种远杂 9307 为材料, 通过水培试验系统研究了 不同 pH (pH 3.0~pH 6.0) 下花生生长表型与生理特征, 并结合转录组测序鉴定了关键通路及相关基因。结果表明, 与 pH 6.0 相比, 低 pH 胁迫显著抑制了植株生物量累积, 且 pH ≤ 3.5 时根冠比显著下降。pH 3.5 导致根系活力降低, 根系变小, 根尖结构遭到破坏。转录组分析表明, 花生通过诱导抗氧化代谢和木质素合成相关基因的表达响应低 pH 胁迫, 促进根系抗氧化酶活和木质素含量增加; 同时, 低 pH 胁迫显著提升细胞壁代谢和信号转导过程相关基因 (如凝集素蛋白基因、GDSL 基序脂肪酶基因、TMV 抗性蛋白基因以及内切葡聚糖转移酶基因等) 在根中的表达, 提 示其在调控低 pH 胁迫下花生根系生长中发挥重要作用。本研究为深入解析花生耐低 pH 的分子机制提供了理论 依据。 [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 195347856
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: 花生根系响应低pH胁迫的形态及生理特性研究.
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Root morphology and physiology responses of peanuts seedlings to low-pH stress.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22刘玲%22">刘玲</searchLink><relatesTo>1</relatesTo><i> haasliuling@163.com</i><br /><searchLink fieldCode="AR" term="%22张翔%22">张翔</searchLink><relatesTo>1</relatesTo><i> zxtf203@163.com</i><br /><searchLink fieldCode="AR" term="%22索炎炎%22">索炎炎</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22李亮%22">李亮</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22段贤杰%22">段贤杰</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22徐凤丹%22">徐凤丹</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22邱岭军%22">邱岭军</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22司贤宗%22">司贤宗</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22李倩%22">李倩</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22闫萌%22">闫萌</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22程培军%22">程培军</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Chinese+Journal+of+Oil+Crop+Sciences%22">Chinese Journal of Oil Crop Sciences</searchLink>. 2026, Vol. 48 Issue 3, p118-134. 17p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Plant+root+morphology%22">Plant root morphology</searchLink><br />*<searchLink fieldCode="DE" term="%22Soil+acidity%22">Soil acidity</searchLink><br />*<searchLink fieldCode="DE" term="%22Transcriptomes%22">Transcriptomes</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydroponics%22">Hydroponics</searchLink><br />*<searchLink fieldCode="DE" term="%22Lignin+structure%22">Lignin structure</searchLink><br />*<searchLink fieldCode="DE" term="%22Antioxidants%22">Antioxidants</searchLink><br />*<searchLink fieldCode="DE" term="%22Peanut+growing%22">Peanut growing</searchLink><br />*<searchLink fieldCode="DE" term="%22Root+growth%22">Root growth</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: To investigate the mechanism of peanut root response to low pH stress, hydroponic experiments were conducted with the cultivar Yuanza 9307 under varying pH conditions (pH 3.0-6.0) to systematically examine growth phenotypes and physiological characteristics, transcriptome sequencing was employed to identify key path‐ ways and genes. Results indicated that compared to pH 6.0, low-pH stress significantly inhibited plant biomass ac‐ cumulation, with a notable reduction in root-to-shoot ratio at pH ≤ 3.5. In the hydtoponic system with pH 3.5, root activity decreased, root morphology was impaired, and root tip structure was damaged. Transcriptome analysis re‐ vealed that low-pH stress induced the upregulation of genes associated with antioxidant metabolism and lignin bio ‐ synthesis, accompanied by enhanced antioxidant enzyme activities and increased lignin content. Concurrently, genes involved in cell wall metabolism and signal transduction-such as those encoding lectin proteins, GDSL-motif lipases, TMV resistance proteins, and endoglucan transferases-were significantly induced in roots, suggesting their potential roles in regulating root growth under low pH conditions. This study provides a theoretical foundation for further deciphering the molecular mechanisms of peanut tolerance to low-pH stress. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Chinese)
  Group: Ab
  Data: 为探究花生根系响应低 pH 胁迫的机制, 本研究以花生品种远杂 9307 为材料, 通过水培试验系统研究了 不同 pH (pH 3.0~pH 6.0) 下花生生长表型与生理特征, 并结合转录组测序鉴定了关键通路及相关基因。结果表明, 与 pH 6.0 相比, 低 pH 胁迫显著抑制了植株生物量累积, 且 pH ≤ 3.5 时根冠比显著下降。pH 3.5 导致根系活力降低, 根系变小, 根尖结构遭到破坏。转录组分析表明, 花生通过诱导抗氧化代谢和木质素合成相关基因的表达响应低 pH 胁迫, 促进根系抗氧化酶活和木质素含量增加; 同时, 低 pH 胁迫显著提升细胞壁代谢和信号转导过程相关基因 (如凝集素蛋白基因、GDSL 基序脂肪酶基因、TMV 抗性蛋白基因以及内切葡聚糖转移酶基因等) 在根中的表达, 提 示其在调控低 pH 胁迫下花生根系生长中发挥重要作用。本研究为深入解析花生耐低 pH 的分子机制提供了理论 依据。 [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.19802/j.issn.1007-9084.2025218
    Languages:
      – Code: chi
        Text: Chinese
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      Pagination:
        PageCount: 17
        StartPage: 118
    Subjects:
      – SubjectFull: Plant root morphology
        Type: general
      – SubjectFull: Soil acidity
        Type: general
      – SubjectFull: Transcriptomes
        Type: general
      – SubjectFull: Hydroponics
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      – SubjectFull: Lignin structure
        Type: general
      – SubjectFull: Antioxidants
        Type: general
      – SubjectFull: Peanut growing
        Type: general
      – SubjectFull: Root growth
        Type: general
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      – TitleFull: 花生根系响应低pH胁迫的形态及生理特性研究.
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            – D: 01
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              Text: 2026
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