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Effects of different water conditions on the biomass, root morphology and aerenchyma formation in bermudagrass (Cynodon dactylon (L.) Pers)

文献类型：期刊论文

作者Yuan, Zhongxun1,2; Ni, Xilu3; Chen, Chunhua1,2; Zhang, Songlin4; Chen, Xuemei1,2; Yang, Zhihua1,2; Li, Changxiao1,2
刊名BMC PLANT BIOLOGY
出版日期2022-05-30
卷号22期号:1页码:14
ISSN号1471-2229
关键词Aerenchyma Bermudagrass Root cavity rate Root growth Submergence
DOI10.1186/s12870-022-03653-2
通讯作者Li, Changxiao(lichangx@swu.edu.cn)
英文摘要Background The bermudagrass (Cynodon dactylon (L.) Pers) roots responded differently in terms of morphological and anatomical characteristics under diverse submergence conditions, and they developed aerenchyma under non-flooding condition. In order to understand these mechanisms, bermudagrass cuttings were used as experimental material to examine their biomass, root morphology, and aerenchyma formation under three different water treatments, including control (CK), shallow submergence (SS), and deep submergence (DS). Results The total root length, root volume, root surface area, and biomass of bermudagrass were largest in CK, followed by SS and DS. However, the average root diameter was greater in each of DS and SS than that in CK. Root aerenchyma formation was observed in CK, and submergence boosted the aerenchyma formation and the root cavity rate. Furthermore, our study found that the process of aerenchyma formation began with the increase of cell volume and cell separation to form a narrow space, and these cells gradually died to form matured aerenchyma cavity, which belongs to schizo-lysigenous aerenchyma. Meanwhile, typical biomarkers of programmed cell death were also observed. Conclusion Overall, these results suggested that submergence inhibited the accumulation of biomass and root growth, but facilitated aerenchyma formation by increasing root diameter.
资助项目Chongqing Municipality Key Forestry Research Project[TD2021-9] ; Chongqing Municipality Key Forestry Research Project[TD2020-2] ; Chongqing Municipality Key Forestry Research Project[TD2019-2] ; Ningxia Key Research and Development Program[2020BFG0306] ; Natural Science Foundation of Ningxia[2020AAC03107] ; Chongqing Municipality Housing and Urban Construction Committee[Chengkezi 2019-1-4-2] ; Chongqing Science and Technology Bureau[cstc2018jszx-zdyfxmX0021-02] ; National Natural Science Foundation of China[31960038] ; National Natural Science Foundation of China[31660045] ; International Sci-Tech Cooperation Project of Ministry of Science and Technology[2015DFA90900] ; Forestry Extension Project of China Central Finance[Yulinketui 2020-2]
WOS研究方向Plant Sciences
语种英语
出版者BMC
WOS记录号WOS:000805590300001
源URL[http://119.78.100.138/handle/2HOD01W0/15043]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Li, Changxiao
作者单位1.Southwest Univ, State Cultivat Base Ecoagr Southwest Mt Land, Chongqing 400715, Peoples R China
2.Southwest Univ, Coll Life Sci, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Minist Educ,Chongqing Key Lab Plant Resource Cons, Chongqing 400715, Peoples R China
3.Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Minist Educ, Key Lab Restorat & Reconstruct Degraded Ecosyst N, Yinchuan 750021, Peoples R China
4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Zhongxun,Ni, Xilu,Chen, Chunhua,et al. Effects of different water conditions on the biomass, root morphology and aerenchyma formation in bermudagrass (Cynodon dactylon (L.) Pers)[J]. BMC PLANT BIOLOGY,2022,22(1):14.
APA Yuan, Zhongxun.,Ni, Xilu.,Chen, Chunhua.,Zhang, Songlin.,Chen, Xuemei.,...&Li, Changxiao.(2022).Effects of different water conditions on the biomass, root morphology and aerenchyma formation in bermudagrass (Cynodon dactylon (L.) Pers).BMC PLANT BIOLOGY,22(1),14.
MLA Yuan, Zhongxun,et al."Effects of different water conditions on the biomass, root morphology and aerenchyma formation in bermudagrass (Cynodon dactylon (L.) Pers)".BMC PLANT BIOLOGY 22.1(2022):14.

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来源：重庆绿色智能技术研究院

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