{"title":"Distinctive plasticity of maize (Zea mays) root types to variable nitrate concentration","authors":"Yutong Jiang, Chih-Yu Hung, J. Whalen","doi":"10.1139/cjps-2022-0246","DOIUrl":null,"url":null,"abstract":"Abstract Maize roots vary their growth in response to nitrate (NO-3) concentration in the environment, but growth plasticity differs among root types. We assessed the morphological response of lateral and axial roots on the primary, seminal, and crown root types exposed to 0, 1, 2, 3.9, and 7.8mmolL−1 NO-3. Higher NO-3 concentration did not change the growth of all axial roots and laterals of primary roots but caused positive quadratic growth in laterals of the seminal and crown root types. Maize root plasticity to NO-3 concentrations is the result of differential growth of laterals on seminal and crown root types.","PeriodicalId":9530,"journal":{"name":"Canadian Journal of Plant Science","volume":"103 1","pages":"319 - 323"},"PeriodicalIF":1.0000,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Canadian Journal of Plant Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1139/cjps-2022-0246","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract Maize roots vary their growth in response to nitrate (NO-3) concentration in the environment, but growth plasticity differs among root types. We assessed the morphological response of lateral and axial roots on the primary, seminal, and crown root types exposed to 0, 1, 2, 3.9, and 7.8mmolL−1 NO-3. Higher NO-3 concentration did not change the growth of all axial roots and laterals of primary roots but caused positive quadratic growth in laterals of the seminal and crown root types. Maize root plasticity to NO-3 concentrations is the result of differential growth of laterals on seminal and crown root types.
期刊介绍：
Published since 1957, the Canadian Journal of Plant Science is a bimonthly journal that contains new research on all aspects of plant science relevant to continental climate agriculture, including plant production and management (grain, forage, industrial, and alternative crops), horticulture (fruit, vegetable, ornamental, greenhouse, and alternative crops), and pest management (entomology, plant pathology, and weed science). Cross-disciplinary research in the application of technology, plant breeding, genetics, physiology, biotechnology, microbiology, soil management, economics, meteorology, post-harvest biology, and plant production systems is also published. Research that makes a significant contribution to the advancement of knowledge of crop, horticulture, and weed sciences (e.g., drought or stress resistance), but not directly applicable to the environmental regions of Canadian agriculture, may also be considered. The Journal also publishes reviews, letters to the editor, the abstracts of technical papers presented at the meetings of the sponsoring societies, and occasionally conference proceedings.
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