Adaptation of rhizosphere bacterial communities of drought-resistant sugarcane varieties under different degrees of drought stress

被引:3
|
作者
Dao, Jicao [1 ,2 ,3 ]
Xing, Yuanjun [1 ,2 ,3 ]
Chen, Chunyi [1 ,2 ,3 ]
Chen, Mianhe [1 ,2 ,3 ]
Wang, Ziting [1 ,2 ,3 ]
机构
[1] Guangxi Key Lab Sugarcane Biol, Nanning, Guangxi, Peoples R China
[2] Guangxi Univ, State Key Lab Conservat & Utilizat Subtrop Agrobi, Nanning, Guangxi, Peoples R China
[3] Guangxi Univ, Coll Agron, Nanning, Guangxi, Peoples R China
来源
MICROBIOLOGY SPECTRUM | 2023年 / 11卷 / 05期
基金
中国国家自然科学基金;
关键词
drought gradient; sugarcane; rhizosphere bacterial community; core functional bacteria; drought response; ROOT-SYSTEM ARCHITECTURE; PLANT-GROWTH; MICROBIOME; TOLERANCE; DIVERSITY; NITROGEN; OPPORTUNITIES; CONSTRAINTS; ENDOPHYTES; PROMOTION;
D O I
10.1128/spectrum.01184-23
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Sugarcane is highly sensitive to changes in moisture, and increased drought severely restricts its growth and productivity. Recent studies have shown that plant growth-promoting microorganisms are essential to reduce the adverse effects of environmental stresses, especially drought. However, our knowledge about the dynamics of rhizosphere microbial community structure in sugarcane under varying degrees of drought stress is limited. We analyzed the effects of different degrees of drought stress on the rhizosphere microbial communities of Zhongzhe 1(ZZ1) and Zhongzhe 6(ZZ6) with differences in drought resistance, by combining soil enzyme activity, nutrient content, and physiological and morphological characteristics of sugarcane roots. The results showed that rhizosphere bacterial community began to change at a field capacity of 50%, enriching the sugarcane rhizosphere with drought-resistant bacteria. The core strains of ZZ1 and ZZ6 rhizosphere enrichment were mainly Streptomycetales, Sphingomonadales, and Rhizobiales. However, compared to ZZ1, the changes in rhizosphere bacterial abundance in ZZ6 were primarily associated with the abundance of Streptomycetales as drought levels increased. Rhizobiales and Streptomycetales, enriched in the rhizosphere of ZZ6 under drought, were positively correlated with root tip number and total root length (TRL), increasing the distribution area of roots and, thus, improving water and nutrient uptake by the roots thereby enhancing the resistance of sugarcane to drought stress. This research enhances our understanding of the composition of the rhizosphere microbial community in sugarcane under different levels of drought stress and its interaction with the roots, thereby providing valuable insights for enhancing drought resistance in sugarcane. Importance Drought stress is expected to further increase in intensity, frequency, and duration, causing substantial losses in sugarcane yields. Here, we exposed sugarcane to varying degrees of drought treatment during growth and quantified the eventual composition of the resulting sugarcane rhizosphere bacterial community groups. We found that sugarcane rhizosphere under mild drought began to recruit specific bacterial communities to resist drought stress and used the interactions of root tip number, total root length, and drought-resistant strains to improve sugarcane survival under drought. This research provides a theoretical basis for the rhizosphere microbiome to help sugarcane improve its resistance under different levels of drought stress.
引用
收藏
页数:19
相关论文
共 50 条
  • [41] Correlating the above- and belowground genotype of Pinus pinaster trees and rhizosphere bacterial communities under drought conditions
    Lasa, Ana, V
    Angeles Guevara, M.
    Villadas, Pablo J.
    Dolores Velez, Maria
    Fernandez-Gonzalez, Antonio J.
    de Maria, Nuria
    Lopez-Hinojosa, Miriam
    Diaz, Luis
    Teresa Cervera, Maria
    Fernandez-Lopez, Manuel
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2022, 832
  • [42] Comparative Performance of Sunflower Synthetic Varieties under Drought Stress
    Saensee, Khamsee
    Machikowa, Thitiporn
    Muangsan, Nooduan
    [J]. INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY, 2012, 14 (06) : 929 - 934
  • [43] Effect of Two Different Sugarcane Cultivars on Rhizosphere Bacterial Communities of Sugarcane and Soybean Upon Intercropping
    Liu, Yue
    Yang, Huichun
    Liu, Qi
    Zhao, Xiaowen
    Xie, Sasa
    Wang, Ziting
    Wen, Ronghui
    Zhang, Muqing
    Chen, Baoshan
    [J]. FRONTIERS IN MICROBIOLOGY, 2021, 11
  • [44] Bacterial Communities in the Rhizosphere and Phyllosphere of Halophytes and Drought-Tolerant Plants in Mediterranean Ecosystems
    Genitsaris, Savvas
    Stefanidou, Natassa
    Leontidou, Kleopatra
    Matsi, Theodora
    Karamanoli, Katerina
    Mellidou, Ifigeneia
    [J]. MICROORGANISMS, 2020, 8 (11) : 1 - 20
  • [45] Changes in DNA Methylation Pattern at Two Seedling Stages in Water Saving and Drought-Resistant Rice Variety after Drought Stress Domestication
    ZHENG Xiao-guo
    CHEN Liang
    LOU Qiao-jun
    XIA Hui
    LI Ming-shou
    LUO Li-jun
    [J]. Rice Science, 2014, (05) : 262 - 270
  • [46] Physiological Mechanism of Drought-Resistant Rice Coping With Drought Stress (November, 10.1007/s00344-021-10456-6, 2021)
    Wang, Benfu
    Yang, Xiaolong
    Chen, Liang
    Jiang, Yuanyuan
    Bu, Hongying
    Jiang, Yang
    Li, Ping
    Cao, Cougui
    [J]. JOURNAL OF PLANT GROWTH REGULATION, 2022, 41 (07) : 2652 - 2652
  • [47] Changes in DNA Methylation Pattern at Two Seedling Stages in Water Saving and Drought-Resistant Rice Variety after Drought Stress Domestication
    Zheng Xiao-guo
    Chen Liang
    Lou Qiao-jun
    Xia Hui
    Li Ming-shou
    Luo Li-jun
    [J]. RICE SCIENCE, 2014, 21 (05) : 262 - 270
  • [48] Potential impact of scaling adaptation strategies for drought stress: a case of drought-tolerant maize varieties in Tanzania
    Gebre, Girma Gezimu
    Rahut, Dil Bahadur
    Aryal, Jeetendra Prakash
    Mawia, Harriet
    [J]. INTERNATIONAL JOURNAL OF AGRICULTURAL SUSTAINABILITY, 2023, 21 (01)
  • [49] Changes in DNA Methylation Pattern at Two Seedling Stages in Water Saving and Drought-Resistant Rice Variety after Drought Stress Domestication
    ZHENG Xiaoguo
    CHEN Liang
    LOU Qiaojun
    XIA Hui
    LI Mingshou
    LUO Lijun
    [J]. Rice Science, 2014, 21 (05) - 270
  • [50] Photosynthetic physiological response of water-saving and drought-resistant rice to severe drought under wetting-drying alternation irrigation
    He, Haibing
    Wang, Quan
    Wang, Lele
    Yang, Kun
    Yang, Ru
    You, Cuicui
    Ke, Jian
    Wu, Liquan
    [J]. PHYSIOLOGIA PLANTARUM, 2021, 173 (04) : 2191 - 2206