Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3389/fpls.2020.587610 |
| Mucilage Polysaccharide Composition and Exudation in Maize From Contrasting Climatic Regions | |
| Nazari, Meisam; Riebeling, Sophie; Banfield, Callum C.; Akale, Asegidew; Crosta, Margherita; Mason-Jones, Kyle; Dippold, Michaela A.; Ahmed, Mutez Ali | |
| 通讯作者 | Nazari, M (corresponding author), Georg August Univ Gottingen, Div Biogeochem Agroecosyst, Gottingen, Germany. |
| 来源期刊 | FRONTIERS IN PLANT SCIENCE
 |
| ISSN | 1664-462X |
| 出版年 | 2020 |
| 卷号 | 11 |
| 英文摘要 | Mucilage, a gelatinous substance comprising mostly polysaccharides, is exuded by maize nodal and underground root tips. Although mucilage provides several benefits for rhizosphere functions, studies on the variation in mucilage amounts and its polysaccharide composition between genotypes are still lacking. In this study, eight maize (Zea mays L.) genotypes from different globally distributed agroecological zones were grown under identical abiotic conditions in a randomized field experiment. Mucilage exudation amount, neutral sugars and uronic acids were quantified. Galactose (similar to 39-42%), fucose (similar to 22-30%), mannose (similar to 11-14%), and arabinose (similar to 8-11%) were the major neutral sugars in nodal root mucilage. Xylose (similar to 1-4%), and glucose (similar to 1-4%) occurred only in minor proportions. Glucuronic acid (similar to 3-5%) was the only uronic acid detected. The polysaccharide composition differed significantly between maize genotypes. Mucilage exudation was 135 and 125% higher in the Indian (900 M Gold) and Kenyan (DH 02) genotypes than in the central European genotypes, respectively. Mucilage exudation was positively associated with the vapor pressure deficit of the genotypes' agroecological zone. The results indicate that selection for environments with high vapor pressure deficit may favor higher mucilage exudation, possibly because mucilage can delay the onset of hydraulic failure during periods of high vapor pressure deficit. Genotypes from semi-arid climates might offer sources of genetic material for beneficial mucilage traits. |
| 英文关键词 | agroecological zones genotype maize mucilage root exudation vapor pressure deficit |
| 类型 | Article |
| 语种 | 英语 |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000600633400001 |
| WOS关键词 | ROOT WATER-UPTAKE ; ZEA-MAYS L. ; NITROGEN-FIXATION ; SEED MUCILAGE ; NATURAL VARIATION ; SOIL ; PLANT ; HYDROPHOBICITY ; IDENTIFICATION ; PENETRATION |
| WOS类目 | Plant Sciences |
| WOS研究方向 | Plant Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/369195 |
| 作者单位 | [Nazari, Meisam; Riebeling, Sophie; Banfield, Callum C.; Dippold, Michaela A.; Ahmed, Mutez Ali] Georg August Univ Gottingen, Div Biogeochem Agroecosyst, Gottingen, Germany; [Akale, Asegidew; Crosta, Margherita; Ahmed, Mutez Ali] Univ Bayreuth, Bayreuth Ctr Ecol & Environm Res BayCEER, Chair Soil Phys, Bayreuth, Germany; [Mason-Jones, Kyle] Netherlands Inst Ecol NICO KNAW, Dept Terr Ecol, Wageningen, Netherlands |
| 推荐引用方式 GB/T 7714 | Nazari, Meisam,Riebeling, Sophie,Banfield, Callum C.,et al. Mucilage Polysaccharide Composition and Exudation in Maize From Contrasting Climatic Regions[J],2020,11. |
| APA | Nazari, Meisam.,Riebeling, Sophie.,Banfield, Callum C..,Akale, Asegidew.,Crosta, Margherita.,...&Ahmed, Mutez Ali.(2020).Mucilage Polysaccharide Composition and Exudation in Maize From Contrasting Climatic Regions.FRONTIERS IN PLANT SCIENCE,11. |
| MLA | Nazari, Meisam,et al."Mucilage Polysaccharide Composition and Exudation in Maize From Contrasting Climatic Regions".FRONTIERS IN PLANT SCIENCE 11(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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