Related Experiment Video
Updated: May 3, 2026
10:25
Dual-color Correlative Light and Electron Microscopy for the Visualization of Interactions between Mitochondria and Lysosomes
Published on: September 27, 2024
1.3K
Absorptive cells in protoxylem: Association between mitochondria and the plasmalemma
1Department of Biochemistry, University of Cambridge, UK.
Planta
|February 12, 2014
Summary
Characteristic wall ingrowths in Pinus pinea parenchyma cells, near the stem protoxylem, are linked to mitochondria. This association suggests a role in salt absorption from the xylem transpiration stream.
Area of Science:
- Plant anatomy
- Cell biology
- Plant physiology
Background:
- Pinus pinea parenchyma cells surrounding the stem protoxylem exhibit unique structural features.
- Mitochondria are crucial organelles for cellular energy production.
Purpose of the Study:
- To investigate the structural characteristics of parenchyma cells in Pinus pinea.
- To explore the relationship between cellular structures and potential physiological functions.
Main Methods:
- Microscopic examination of Pinus pinea stem tissues.
- Analysis of the association between cellular organelles and plasma membrane.
Main Results:
- Distinctive wall ingrowths were observed in parenchyma cells adjacent to the stem protoxylem.
- Numerous mitochondria were found in close proximity to the plasmalemma of these ingrowths.
Conclusions:
- The observed association between mitochondria and plasmalemma in cells with wall ingrowths suggests a functional role.
- This structural arrangement may facilitate salt absorption from the xylem transpiration stream in Pinus pinea.
Related Concept Videos
02:32Plasmodesmata
30.0K
The organs in a multicellular organism’s body are made up of tissues formed by cells. To work together cohesively, cells must communicate. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
30.0K
01:20Plasmodesmata
3.8K
In a multicellular organism, cells must communicate to work together in a coordinated manner. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
Intercellular junctions are a feature of fungal, plant, and animal cells. However, different types of junctions are found in different kinds of cells. Intercellular junctions found in animal cells include tight junctions, gap junctions, and...
Intercellular junctions are a feature of fungal, plant, and animal cells. However, different types of junctions are found in different kinds of cells. Intercellular junctions found in animal cells include tight junctions, gap junctions, and...
3.8K
01:45Mitochondrial Membranes
11.7K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
11.7K
01:45Mitochondrial Membranes
2.1K
2.1K
01:07Anatomy of Chloroplasts
98.4K
Green algae and plants, including green stems and unripe fruit, harbor chloroplasts—the vital organelles where photosynthesis takes place. In plants, the highest density of chloroplasts is found in the mesophyll cells of leaves.
98.4K
01:08The Anatomy of Chloroplasts
7.0K
Green algae and plants, including green stems and unripe fruit, harbor specialized organelles called chloroplasts to carry out photosynthesis. They coordinate both stages of photosynthesis — the light-dependent reactions and the light-independent reactions. The light-dependent reactions use sunlight to release oxygen and produce chemical energy in the form of ATP and NADPH, and the light-independent reactions capture CO2 and use ATP and NADPH to produce sugar.
Structure of...
Structure of...
7.0K