Plant Water Relations - MB130P18E

• Title: Plant Water Relations
• Czech title: Vodní provoz rostlin
• Guaranteed by: Department of Experimental Plant Biology (31-130)
• Faculty: Faculty of Science
• Actual: from 2023
• Semester: summer
• E-Credits: 3
• Examination process: summer s.:
• Hours per week, examination: summer s.:2/0, Ex [HT]
• Capacity: unlimited
• Min. number of students: 5
• 4EU+: no
• Virtual mobility / capacity: no
• State of the course: cancelled
• Language: English
• Additional information: http://kfrserver.natur.cuni.cz/studium/prednasky/VP/index.html
• Note: enabled for web enrollment
• Guarantor: Mgr. Zuzana Lhotáková, Ph.D.
• Incompatibility : MB130P18
• Pre-requisite : MB130C14, MB130P14
• Is incompatible with: MB130P18
• Is interchangeable with: MB130P18

Annotation

English

Last update: RNDr. Jana Rubešová, Ph.D. (12.12.2006)

The lecture offers basic knowledge on the water uptake, transport and transpiration. Physical basis of the water absorption by roots and water vapour release by the leaves are explained. Attention is also paid to the ecophysiological aspects of plant water relationship. In the practical training, modern methods for the determination of water uptake and water vapour release as well as individual lelements of plant water potential will be trained.
Please note, the lectures are given in Czech language. English version of the course can be requested in advance if there are at least 2 students.

Czech

Last update: LIPAVSKA (16.04.2007)

The lecture offers basic knowledge on the water uptake, transport and transpiration. The physical basis of the water
absorption by roots, water transport on the cell level, water transport in xylem, and water vapour efflux by leaves are
explained. Main attention is paid to mechanisms of regulation of individual processes. The ecophysiological aspects of plant
water relationship are also considered. In the practical training measurements of individual components of plant water
potential, as well as methods for the determination of water uptake, transpiration and stomatal conductance will be trained.

Literature

Last update: LIPAVSKA (16.04.2007)

1. Nobel, P.S.: Physicochemical and Environmental Plant Physiology. - Academic Press, San Diego 1999.

2. Lerner, H.R. (ed.): Plant Responses to Environmental Stresses. - Marcel Dekker, New York - Basel 1999.

3. Larcher, W.: Physiological Plant Ecology. Ecophysiology and Stress Physiology of Functional Groups.4th Edition. - Spriger, Berlin - Heidelberg - New York 2003.

4. Selected current articles from scientific journals.

5. Huang, B.: Plant-Environment Interactions. - Taylor and Francis, Boca Raton - London - New York 2006.

Requirements to the exam

Last update: POSPISI6/NATUR.CUNI.CZ (04.11.2011)

oral examination

Syllabus

English

Last update: RNDr. Jana Rubešová, Ph.D. (12.12.2006)

1.Water in nature: its importance and water cycle. Physical properties of water which are important for plant water relations (hydrogen bonds, chemical potential of water, cohesion, adhesion).

2. Water in plants, relative water content, water potential and its components (osmotic, pressure, matric, and gravitational potentials) and their role at the level of a cell and the whole plant.

3. Water and solute transport at the cellular level, permeability, reflection coefficient, aquaporins.

4. Water uptake by the roots, radial water transport through apoplast and symplast, longitudinal transport, root pressure, guttation. Liquid water uptake by the shoot.

5. Water transport in the xylem, the cohesion theory, occurrence of xylem embolism and refilling the embolized vessels.

6. Transpiration as a diffusion of water vapour. Water vapour transport through the boundary layer of the air, cuticle, stomata and intercellular spaces.

7. The importance of stomatal and cuticular transpiration. Energetic balance of the leaf.

8. Structure and ultrastructure of the stomata, mechanisms of the opening and closing of stomata.

9. The effects of both external and internal factors on stomata opening. Simultaneous action of more than one factor. Feedback loops. Acclimation to growth conditions.

10. Regulation of the transpiration and photosynthetic rates by stomatal conductance, water use efficiency.

11. The development of water deficit and its influence on basic physiological processes. Stomatal and non-stomatal limitation to photosynthesis.

12. Stress proteins, drought resistance of plants, plant resistance to salinity.

Czech

Last update: LIPAVSKA (16.04.2007)

1.Water in nature: its importance and water cycle. Physical properties of water which are important for plant water relations (hydrogen bonds, chemical potential of water, cohesion, adhesion).

2. Water in plants, relative water content, water potential and its components (osmotic, pressure, matric, and gravitational potentials) and their role on the cellular and whole plant level.

3. Water and solute transport on the cellular level, permeability, reflection coefficient, aquaporins.

4. Water uptake by the roots, radial water transport through apoplast and symplast, longitudinal transport, root pressure, guttation. Liquid water uptake by the shoot.

5. Water transport in the xylem, the cohesion theory, occurrence of xylem embolism and refilling the embolized vessels.

6. Transpiration as a diffusion of water vapour. Water vapour transport through the boundary layer of the air, cuticle, stomata and intercellular spaces.

7. The importance of stomatal and cuticular transpiration. Energetic balance of the leaf.

8. Structure and ultrastructure of the stomata, mechanisms of the opening and closing of stomata.

9. The effects of both external and internal factors on stomata opening. Simultaneous action of more than one factor. Feedback loops. Acclimation to growth conditions.

10. Regulation of the transpiration and photosynthetic rates by stomatal conductance, water use efficiency.

11. The development of water deficit and its influence on basic physiological processes. Stomatal and non-stomatal limitation to photosynthesis.

12. Stress proteins, drought resistance of plants, plant resistance to salinity.