The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays
Leaf dehydration decreases water potential and cell turgor pressure. Therefore, changes in cell turgor pressure may regulate water transport across plant cell membranes. Using a cell pressure probe, the hydraulic properties of parenchyma cells in the midrib of maize (Zea mays L.) leaves were measure...
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| Format: | Article |
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MDPI AG
2018-10-01
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| Series: | Cells |
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| Online Access: | http://www.mdpi.com/2073-4409/7/10/180 |
| _version_ | 1797709822528847872 |
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| author | Yangmin X. Kim Burkhard Stumpf Jwakyung Sung Sang Joon Lee |
| author_facet | Yangmin X. Kim Burkhard Stumpf Jwakyung Sung Sang Joon Lee |
| author_sort | Yangmin X. Kim |
| collection | DOAJ |
| description | Leaf dehydration decreases water potential and cell turgor pressure. Therefore, changes in cell turgor pressure may regulate water transport across plant cell membranes. Using a cell pressure probe, the hydraulic properties of parenchyma cells in the midrib of maize (Zea mays L.) leaves were measured (half time T 1 / 2 of water exchange in cells as a measure of hydraulic conductivity Lp). Using intact plants with root systems encased in a pressure chamber, the root systems were pressurized and the turgor pressure in leaf cells increased by increments up to 0.3 MPa. However, the increase in the cell turgor did not increase but stabilized T 1 / 2 values. Increased water potential in leaf cells seemed to have stabilizing effects on the T 1 / 2 probably due to enhanced water availability. When the cell turgor decreased by 0.1 MPa to 0.3 MPa with releasing the pressure in the pressure chamber, T 1 / 2 was temporarily increased to a large degree, a factor of up to 13 within 30 min. |
| first_indexed | 2024-03-12T06:43:27Z |
| format | Article |
| id | doaj.art-9e1d3fda26844e4aac5352c44748d256 |
| institution | Directory Open Access Journal |
| issn | 2073-4409 |
| language | English |
| last_indexed | 2024-03-12T06:43:27Z |
| publishDate | 2018-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Cells |
| spelling | doaj.art-9e1d3fda26844e4aac5352c44748d2562023-09-03T00:52:57ZengMDPI AGCells2073-44092018-10-0171018010.3390/cells7100180cells7100180The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea maysYangmin X. Kim0Burkhard Stumpf1Jwakyung Sung2Sang Joon Lee3Department of Plant Ecology, Bayreuth University, D-95440 Bayreuth, GermanyDepartment of Plant Ecology, Bayreuth University, D-95440 Bayreuth, GermanyDivision of Soil and Fertilizer, National Institute of Agricultural Sciences, RDA, Wanju 55365, Jeollabuk-do, KoreaDepartment of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Gyeongbuk, KoreaLeaf dehydration decreases water potential and cell turgor pressure. Therefore, changes in cell turgor pressure may regulate water transport across plant cell membranes. Using a cell pressure probe, the hydraulic properties of parenchyma cells in the midrib of maize (Zea mays L.) leaves were measured (half time T 1 / 2 of water exchange in cells as a measure of hydraulic conductivity Lp). Using intact plants with root systems encased in a pressure chamber, the root systems were pressurized and the turgor pressure in leaf cells increased by increments up to 0.3 MPa. However, the increase in the cell turgor did not increase but stabilized T 1 / 2 values. Increased water potential in leaf cells seemed to have stabilizing effects on the T 1 / 2 probably due to enhanced water availability. When the cell turgor decreased by 0.1 MPa to 0.3 MPa with releasing the pressure in the pressure chamber, T 1 / 2 was temporarily increased to a large degree, a factor of up to 13 within 30 min.http://www.mdpi.com/2073-4409/7/10/180aquaporincell pressure probehydraulic conductivityZea mays L. |
| spellingShingle | Yangmin X. Kim Burkhard Stumpf Jwakyung Sung Sang Joon Lee The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays Cells aquaporin cell pressure probe hydraulic conductivity Zea mays L. |
| title | The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays |
| title_full | The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays |
| title_fullStr | The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays |
| title_full_unstemmed | The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays |
| title_short | The Relationship between Turgor Pressure Change and Cell Hydraulics of Midrib Parenchyma Cells in the Leaves of Zea mays |
| title_sort | relationship between turgor pressure change and cell hydraulics of midrib parenchyma cells in the leaves of zea mays |
| topic | aquaporin cell pressure probe hydraulic conductivity Zea mays L. |
| url | http://www.mdpi.com/2073-4409/7/10/180 |
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