Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect
Plant roots release mucilage and root border cells (RBCs) into rhizosphere, which function as a complex at the root–soil interface. The dynamics of RBCs in rhizosphere soil, however, remains unknown. In this study, the ratio of crushed root cap cells during root penetration into soil and survival of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2008-01-01
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| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.11.440 |
| _version_ | 1819059087625682944 |
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| author | Sutharsan Somasundaram Satoshi Fukuzono Morio Iijima |
| author_facet | Sutharsan Somasundaram Satoshi Fukuzono Morio Iijima |
| author_sort | Sutharsan Somasundaram |
| collection | DOAJ |
| description | Plant roots release mucilage and root border cells (RBCs) into rhizosphere, which function as a complex at the root–soil interface. The dynamics of RBCs in rhizosphere soil, however, remains unknown. In this study, the ratio of crushed root cap cells during root penetration into soil and survival of the RBCs after the release from the root cap were estimated in maize seminal root. In addition, the effects of long term soil compaction on RBCs release were investigated. During the root penetration into rhizosphere soil, 78, 56, and 45% of sloughed root cap cells were estimated to be crushed at the first, second, and third day after planting, respectively. The number of surviving RBCs decreased with time, but 6% of the RBCs in the rhizosphere still retained their cell walls at one month after planting. These cells were estimated to remain in the soil for at least 10 d after the release from lateral roots. Furthermore, RBCs release from newly emerged nodal root increased with aging of plants, and the cell release was significantly increased by soil compaction only at the seedling stage. In conclusion, significant number of RBCs were crushed during root penetration into soil, however many RBCs remained in the rhizosphere soil for a relatively longer period. Soil compaction significantly increased cell release only at the seedling stage. |
| first_indexed | 2024-12-21T14:05:31Z |
| format | Article |
| id | doaj.art-ba48009fb5594a1c94415508c70521ce |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-21T14:05:31Z |
| publishDate | 2008-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-ba48009fb5594a1c94415508c70521ce2022-12-21T19:01:15ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082008-01-0111444044610.1626/pps.11.44011644925Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction EffectSutharsan Somasundaram0Satoshi Fukuzono1Morio Iijima2Nagoya UniversityNagoya UniversityKinki UniversityPlant roots release mucilage and root border cells (RBCs) into rhizosphere, which function as a complex at the root–soil interface. The dynamics of RBCs in rhizosphere soil, however, remains unknown. In this study, the ratio of crushed root cap cells during root penetration into soil and survival of the RBCs after the release from the root cap were estimated in maize seminal root. In addition, the effects of long term soil compaction on RBCs release were investigated. During the root penetration into rhizosphere soil, 78, 56, and 45% of sloughed root cap cells were estimated to be crushed at the first, second, and third day after planting, respectively. The number of surviving RBCs decreased with time, but 6% of the RBCs in the rhizosphere still retained their cell walls at one month after planting. These cells were estimated to remain in the soil for at least 10 d after the release from lateral roots. Furthermore, RBCs release from newly emerged nodal root increased with aging of plants, and the cell release was significantly increased by soil compaction only at the seedling stage. In conclusion, significant number of RBCs were crushed during root penetration into soil, however many RBCs remained in the rhizosphere soil for a relatively longer period. Soil compaction significantly increased cell release only at the seedling stage.http://dx.doi.org/10.1626/pps.11.440Detached cellsMaizeRhizosphereRoot capSloughed root cap cellsSoil compactionSoil mechanical impedance |
| spellingShingle | Sutharsan Somasundaram Satoshi Fukuzono Morio Iijima Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect Plant Production Science Detached cells Maize Rhizosphere Root cap Sloughed root cap cells Soil compaction Soil mechanical impedance |
| title | Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect |
| title_full | Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect |
| title_fullStr | Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect |
| title_full_unstemmed | Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect |
| title_short | Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.: Crushed Cells during Root Penetration, Survival in Soil, and Long Term Soil Compaction Effect |
| title_sort | dynamics of root border cells in rhizosphere soil of zea mays l crushed cells during root penetration survival in soil and long term soil compaction effect |
| topic | Detached cells Maize Rhizosphere Root cap Sloughed root cap cells Soil compaction Soil mechanical impedance |
| url | http://dx.doi.org/10.1626/pps.11.440 |
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