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A diagram showing the different types of plastid. Amyloplasts are thought to play a vital role in gravitropism.Statoliths, a specialized starch-accumulating amyloplast, are denser than cytoplasm, and are able to settle to the bottom of the gravity-sensing cell, called a statocyte. [5]
Microscopic view: potato starch (amyloplasts) in plant cell. Many types of potatoes are grown for the production of potato starch, potato varieties with high starch content and high starch yields are selected. Recently, a new type of potato plant was developed that only contains one type of starch molecule: amylopectin, the waxy potato starch.
Root tip: 1. meristem 2. columella (statocytes with statoliths at the bottom of the cell) 3. side of the root cap 4. dead cells 5. cell elongation zone. Optical microscope 100x Statocyte: 1.cell wall 2.endoplasmic reticulum 3.plasmodesma 4.cell nucleus 5.mitochondrion 6.cytoplasm 7.statolith 8.root 9.columella 10.statocyte
Chloroplasts can be seen travelling around the central vacuole of a cell in Rhizomnium punctatum Cytoplasmic streaming in onion epidermal cell. Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the flow of the cytoplasm inside the cell, driven by forces from the cytoskeleton. [1]
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Current Protocols is a series of laboratory manuals for life scientists. The first title, Current Protocols in Molecular Biology, was established in 1987 by the founding editors Frederick M. Ausubel, Roger Brent, Robert Kingston, David Moore, Jon Seidman, Kevin Struhl, and John A. Smith of the Massachusetts General Hospital Department of Molecular Biology and the Harvard Medical School ...
“As we enter 2025, we will have to become more than a lab and a startup — we have to become an enduring company,” the post said. For OpenAI, part of becoming an enduring company is ...
To explore this disparity, we employed a laboratory model using mice to mimic the hormonal changes that occur during menopause in humans. We discovered that the loss of two key sex hormones ...