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甘肃野生草地早熟禾根茎扩展能力与内源激素含量的相关性研究

袁娅娟 白小明 朱雅楠 张毓婧 闫玉邦 张才忠 李玉杰

袁娅娟, 白小明, 朱雅楠, 张毓婧, 闫玉邦, 张才忠, 李玉杰. 甘肃野生草地早熟禾根茎扩展能力与内源激素含量的相关性研究[J]. 中国生态农业学报(中英文), 2021, 29(8): 1359-1369. doi: 10.13930/j.cnki.cjea.200976
引用本文: 袁娅娟, 白小明, 朱雅楠, 张毓婧, 闫玉邦, 张才忠, 李玉杰. 甘肃野生草地早熟禾根茎扩展能力与内源激素含量的相关性研究[J]. 中国生态农业学报(中英文), 2021, 29(8): 1359-1369. doi: 10.13930/j.cnki.cjea.200976
YUAN Yajuan, BAI Xiaoming, ZHU Yanan, ZHANG Yujing, YAN Yubang, ZHANG Caizhong, LI Yujie. Correlation between the rhizome expansion ability and endogenous hormones contents of wild Poa pratensis in Gansu Province[J]. Chinese Journal of Eco-Agriculture, 2021, 29(8): 1359-1369. doi: 10.13930/j.cnki.cjea.200976
Citation: YUAN Yajuan, BAI Xiaoming, ZHU Yanan, ZHANG Yujing, YAN Yubang, ZHANG Caizhong, LI Yujie. Correlation between the rhizome expansion ability and endogenous hormones contents of wild Poa pratensis in Gansu Province[J]. Chinese Journal of Eco-Agriculture, 2021, 29(8): 1359-1369. doi: 10.13930/j.cnki.cjea.200976

甘肃野生草地早熟禾根茎扩展能力与内源激素含量的相关性研究

doi: 10.13930/j.cnki.cjea.200976
基金项目: 

国家自然科学基金项目 31560667

甘肃省林草局草原生态修复治理科技支撑项目 GSLC-2020-3

详细信息
    作者简介:

    袁娅娟, 主要研究方向为草地生物多样性。E-mail: 1239412646@qq.com

    通讯作者:

    白小明, 主要从事草坪科学研究。E-mail: baixm@gsau.edu.cn

  • 中图分类号: S688.4

Correlation between the rhizome expansion ability and endogenous hormones contents of wild Poa pratensis in Gansu Province

Funds: 

the National Natural Science Foundation of China 31560667

the Science and Technology Support Project of Grassland Ecological Restoration and Management of Gansu Forestry and Grass Bureau GSLC-2020-3

More Information
  • 摘要: 草地早熟禾(Poa pratensis)是典型的根茎型禾草,根茎作为其营养物质储藏和营养繁殖的重要器官,在提高植株地表侵占能力及地下固土能力方面具有重要作用。根茎的发生和发育与内源激素密切相关,本试验以采自甘肃境内9个不同生态型的野生草地早熟禾为试验材料,以‘午夜Ⅱ’草地早熟禾为对照,分析根茎扩展能力与内源激素含量间的相关性,以期揭示草地早熟禾根茎扩展的激素调控机理,为草地早熟禾新品种选育和草坪养护管理提供理论和实践依据。结果表明:1)不同生态型野生草地早熟禾根茎扩展能力存在显著差异,榆中草地早熟禾的分蘖数、根茎数、地上生物量和茎节长最大;西和草地早熟禾的覆盖面积、最长根茎和根茎生物量表现最优,供试不同生态型草地早熟禾材料根茎综合扩展能力由强到弱依次为榆中>西和> ‘午夜Ⅱ’ >渭源>灵台>清水>肃南>秦州>夏河>安定。2)内源激素在草地早熟禾根茎和茎基的分布存在差异,GA3、IAA和ABA含量均为根茎>茎基,ZT含量为茎基>根茎,且两个部位GA3含量均高于其余激素。3)相关性分析显示,草地早熟禾根茎扩展能力与ZT含量、茎基ZT/ABA和IAA/ABA极显著正相关(P < 0.01),与根茎GA3/IAA显著负相关(P < 0.05),与IAA、GA3和ABA含量相关性不显著(P>0.05)。综上,榆中草地早熟禾根茎扩展性最强,且优于‘午夜Ⅱ’草地早熟禾(对照),可作为扩展能力强草地早熟禾新品种选育的优良材料;ZT含量和IAA/ABA与ZT/ABA的比值越高,GA3/IAA比值越低,越有利于草地早熟禾根茎扩展。
  • 图  1  供试草地早熟禾材料玉米素(ZT, A)、赤霉素(GA3, B)、生长素(IAA, C)和脱落酸(ABA, D)含量

    材料名称详见表 1。不同小写字母表示不同材料在P < 0.05水平差异显著。

    Figure  1.  Zeatin (ZT, A), gibberellin (GA3, B), auxin (IAA, C) and abscisic acid (ABA, D) contents of different materials of Poa pratensis

    The names of the material are shown in the table 1. Different lowercase letters indicate significant differences at P < 0.05 level among different materials.

    表  1  供试的10个草地早熟禾材料

    Table  1.   Information of 10 tested materials of Poa pratensis

    材料名称
    Material name
    编号
    Code
    采集地Collection site
    地点
    Location
    海拔
    Altitude (m)
    经度
    Longitude
    纬度
    Latitude
    年均降水量
    Average annual precipitation (mm)
    年均温
    Average annual temperature (℃)
    生境
    Habitat
    野生草地早熟禾
    Wild Poa pratensis
    PLLT 甘肃省灵台县
    Lingtai, Gansu
    1227 107°62′E 35°07′N 586.3 9.4 渠边
    Canal side
    TSQS 甘肃省清水县
    Qingshui, Gansu
    1501 106°12′E 34°7′3N 564.5 9.3 河谷
    Valley
    TSQZ 甘肃省秦州区
    Qinzhou, Gansu
    1723 104°35′E 34°05′N 531 10.72 河谷
    Valley
    LNXH 甘肃省西和县
    Xihe, Gansu
    1250 105°30′E 34°02′N 533 8.4 山坡
    Hill side
    DXAD 甘肃省安定区
    Anding, Gansu
    2035 104°62′E 35°58′N 377 7.2 山坡
    Hill side
    DXWY 甘肃省渭源县
    Weiyuan, Gansu
    2401 104°05′E 35°02′N 500 6.8 路边
    Roadside
    LZYZ 甘肃省榆中县
    Yuzhong, Gansu
    1965 104°04′E 35°48′N 400 6.6 沟底
    Ditch
    GNXH 甘肃省夏河县
    Xiahe, Gansu
    3140 102°60′E 34°80′N 516 2.6 高寒草甸
    Alpine meadow
    ZYSN 甘肃省肃南县
    Sunan, Gansu
    2950 99°52′E 38°48′N 257.21 4.2 高山草原
    Alpine grasslands
    商用‘午夜Ⅱ’
    Marketed ‘Midnight Ⅱ’
    WY(CK)
    下载: 导出CSV

    表  2  激素HPLC分析流动相梯度组成

    Table  2.   Analysis of gradient composition of mobile phase by hormone HPLC

    时间
    Time (min)
    流动相A
    Flow phase A (%)
    流动相B
    Flow phase B (%)
    0.00 10.0 90.0
    1.00 45.0 55.0
    3.00 55.0 45.0
    5.00 65.0 35.0
    8.00 75.0 25.0
    12.00 10.0 90.0
    14.00 10.0 90.0
    下载: 导出CSV

    表  3  4种激素的出峰时间及线性方程

    Table  3.   Peak times and linear equations of four hormones

    激素
    Hormone
    出峰时间
    Peak time (min)
    回归方程
    Regression equation
    R2
    玉米素ZT 4.280 Y=1.66×104X-1.98×103 0.999 943
    赤霉素GA3 6.030 Y=4.36×10X+1.34×103 0.999 464
    生长素IAA 7.987 Y=4.58×103X-2.94×102 0.999 965
    脱落酸ABA 8.794 Y=2.60×104X-2.70×103 0.999 934
    下载: 导出CSV

    表  4  供试草地早熟禾材料根茎扩展性指标比较

    Table  4.   Comparison of different indexes of rhizome expansion of different materials of Poa pratensis

    材料
    Material
    覆盖面积
    Coverage area (cm2·plant–1)
    分蘖数
    Tillers number
    地上生物量
    Aboveground biomass (g·plant–1)
    根茎数
    Number of rhizomes
    茎节长
    Stem internode length (cm)
    最长根茎
    Longest rhizome (cm)
    根茎生物量
    Rhizomes biomass (g·plant–1)
    PLLT 467.48±2.10c 157.50±3.50d 8.08±0.91b 18.50±0.50d 1.42±0.25cd 9.20±0.30def 0.40±0.04d
    TSQS 444.85±4.73d 116.50±5.50e 7.22±1.45bc 19.00±1.00d 1.69±0.34c 8.70±0.68ef 0.49±0.03d
    TSQZ 306.50±5.85g 80.00±9.00f 4.91±1.36cd 12.00±2.65e 1.65±0.12c 13.07±1.46bc 0.26±0.03e
    LNXH 662.89±4.44a 173.33±5.03c 11.36±0.73a 60.50±0.50b 2.43±0.19ab 17.17±1.19a 1.70±0.11a
    DXAD 281.90±3.77h 92.50±4.50f 4.54±2.44de 12.50±3.50e 1.03±0.39d 9.47±0.65def 0.20±0.03e
    DXWY 323.61±5.51f 213.67±6.81b 6.97±1.52bcd 71.50±6.50a 1.66±0.25c 11.03±0.92cde 0.69±0.03c
    LZYZ 547.05±4.39b 325.00±15.00a 11.73±1.79a 76.00±3.61a 2.78±0.35a 16.53±1.55a 1.66±0.02a
    GNXH 123.17±5.64j 82.50±2.50f 2.18±0.06e 16.00±1.00de 1.37±0.08cd 8.33±1.04f 0.25±0.05e
    ZYSN 265.26±5.53i 164.50±8.50cd 4.34±1.83de 17.00±1.00de 1.57±0.44c 11.20±2.08cd 0.16±0.04e
    CK 334.55±3.62e 211.00±4.00b 7.46±0.90bc 53.50±2.50c 2.19±0.07b 14.17±1.59b 1.44±0.16b
    材料名称详见表 1。同列不同小写字母表示同一指标不同材料间差异显著(P < 0.05)。The names of material are shown in the table 1. Different lowercase letters in the same column indicate that there are significant differences at P < 0.05 level in the same index among different materials.
    下载: 导出CSV

    表  5  供试草地早熟禾材料根茎扩展性综合评价

    Table  5.   Comprehensive evaluation of expansion ability of different materials of Poa pratensis

    材料
    Material
    隶属函数值Value of subordinate function (SF) 平均隶属度
    Average SF
    排序
    Order
    覆盖面积
    Coverage area
    分蘖数
    Tiller number
    地上生物量
    Aboveground biomass
    根茎数
    Number of rhizomes
    茎节长
    Stem internode length
    最长根茎
    Longest rhizome
    根茎生物量
    Rhizomes biomass
    PLLT 0.6379 0.3163 0.6171 0.1016 0.2237 0.0981 0.4456 0.3607 5
    TSQS 0.5960 0.1490 0.5271 0.1094 0.3748 0.0453 0.4203 0.3303 6
    TSQZ 0.3397 0.0000 0.2852 0.0000 0.3537 0.5359 0.0294 0.1967 8
    LNXH 1.0000 0.3809 0.9609 0.7578 0.8030 1.0000 0.5434 0.7487 2
    DXAD 0.0000 0.0102 0.0000 0.0625 0.1931 0.0000 0.0000 0.0332 10
    DXWY 0.3714 0.5456 0.5012 0.9297 0.3576 0.3057 0.2788 0.4461 4
    LZYZ 0.7854 1.0000 1.0000 1.0000 1.0000 0.9283 1.0000 0.9642 1
    GNXH 0.2941 0.0510 0.2471 0.0078 0.0000 0.1283 0.0272 0.0978 9
    ZYSN 0.2633 0.3449 0.2262 0.0781 0.3078 0.3245 0.0236 0.1990 7
    CK 0.3916 0.5347 0.5529 0.6484 0.6635 0.6604 0.2821 0.5020 3
    材料名称详见表 1。The names of material are shown in the table 1.
    下载: 导出CSV

    表  6  草地早熟禾根茎扩展性与根茎和茎基内源激素含量相关性

    Table  6.   Correlation between endogenous hormones contents in rhizome and stem base and expansion indexes of Poa pratensis

    部位
    Organ
    激素
    Hormone name
    根茎扩展性
    Ability of rhizome expansion
    扩展指标Expansion indexes
    覆盖面积
    Coverage area
    分蘖数
    Tillers number
    地上生物量
    Aboveground biomass
    根茎数
    Number of rhizomes
    茎节长
    Internode length
    最长根茎
    Longest rhizome
    根茎生物量
    Rhizomes biomass
    根茎Rhizome 玉米素ZT 0.787** 0.368 0.925** 0.628* 0.858** 0.728* 0.529 0.668*
    赤霉素GA3 –0.229 –0.041 –0.352 –0.193 –0.343 –0.247 –0.161 –0.150
    生长素IAA –0.042 –0.175 –0.118 –0.116 –0.101 –0.145 –0.147 –0.284
    脱落酸ABA –0.084 0.053 –0.411 –0.082 –0.251 –0.046 –0.147 0.006
    ZT/ABA 0.595 0.209 0.828** 0.455 0.729** 0.507 0.404 0.442
    GA3/ABA –0.354 –0.215 –0.123 –0.279 –0.303 –0.400 –0.168 –0.323
    IAA/ABA 0.207 –0.074 0.398 0.119 0.395 0.190 0.296 0.310
    GA3/IAA –0.606* –0.425 –0.635* –0.490 –0.672* –0.566* –0.512 –0.491
    茎基Stem base 玉米素ZT 0.851** 0.438 0.940** 0.698* 0.881** 0.800* 0.608 0.760*
    赤霉素GA3 –0.022 –0.303 –0.031 –0.225 –0.093 0.057 0.018 –0.017
    生长素IAA 0.474 0.299 0.338 0.383 0.298 0.397 0.188 0.446
    脱落酸ABA –0.092 0.039 –0.440 –0.098 –0.264 –0.036 0.076 –0.064
    ZT/ABA 0.677* 0.264 0.891** 0.536 0.799** 0.629 0.433 0.605
    GA3/ABA 0.182 –0.175 0.376 –0.003 0.154 0.218 0.157 0.154
    IAA/ABA 0.617* 0.307 0.760* 0.525 0.577 0.524 0.251 0.567
    GA3/IAA –0.461 –0.577 –0.374 –0.592 –0.468 –0.286 –0.066 –0.448
    *和**表示在P < 0.05和P < 0.01水平显著相关。* and ** show significant correlations at P < 0.05 and P < 0.01 levels.
    下载: 导出CSV
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  • 收稿日期:  2020-12-09
  • 录用日期:  2021-03-15
  • 刊出日期:  2021-08-01

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