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Vacuole in Medical News

Gut instinct: Salmonella bacteria's molecular tactics to cause illness

... the bacterial cell in a membrane-bound balloonthe Salmonella Containing vacuole or SCV. Once the bacterium is taken up in the SCV by the epithelial cell, ... responds to antimicrobial peptides and/or low levels of Mg2+ within the vacuole by switching on, activating Mg2+ transporters and stimulating the ...

Penn study finds link between Parkinson's disease genes and manganese poisoning

... also lose neurons in this region." Gitler then found that the protein made by YPK9, the yeast gene equivalent of PARK9, is localized to the vacuole membrane in the yeast cell. Vacuoles are inner cell components that wall off toxic substances for later disposal. "Our hypothesis is that the ...
Vacuole in Medical Technology

Protein Found to Shield Pancreatic Cancer Cells from Self-Destruction

... cell organ, or organelle. This autophagosome then merges with a digestive organelle called a lysosome and everything inside is consumed, leaving the vacuole and a residue of digested material. If enough of this happens, the cell dies. Gabriel Lopez-Berestein, M.D., professor of experimental therapeutics ...
Vacuole in Biological News

New study reveals the protein that makes phosphate chains in yeast

... we speculate that it sends them straight to the vacuole for storage." Vtc4p is partly embedded in the ... probably transfers the polyphosphate chain to the vacuole as it produces it. The researchers determined ... Because the VTC can move from the membrane of the vacuole to that of the cell, it could assemble phosphate ...

Mouse can do without man's most treasured genes

... garbage dump. "The main function of the vacuole is to contain and degrade cellular wastes and toxins," Zhang said. "In humans, the absence of vacuole proteins causes those wastes and toxins to ... reproductive age. As a result, "many of these vacuole proteins are not so 'essential' to the mouse," ...

Cow stomach holds key to turning corn into biofuel

... part of the plant cell, called the vacuole. The vacuole is a safe place to store the enzyme until the plant is harvested. The enzyme will collect in the vacuole with other cellular waste products Because it is only in the vacuole of the green tissues of plant cells, the enzyme ...

Legionnaire's bacterial proteins work together to survive

... What makes this pathogen special is that it can control transport of the vacuole formed after macrophages ingest the bacterium, Roy said. It hijacks the vacuole and directs it to be transported to a nutrient-rich organelle called the ...

Comparative genomics reveals molecular evolution of Q fever pathogen

... cells in the body that usually provide protection against invading pathogens. The pathogen has the remarkable ability to replicate in a lysosome-like vacuole of macrophages, an extremely harsh intracellular environment that usually protects the body from infection by breaking down invading pathogens. The ...

Cornell researcher seeks clues to how tuberculosis infects cells

... health and their response to stress. The researchers have also created real-time readouts that measure conditions within the tuberculosis-containing vacuole at any time during the immune system's process. "Our goal is to develop these bacterial fitness readouts to screen small molecule libraries for ...

Breast tumors in mice eradicated using cancer vaccine

... cell, they are engulfed by a phagocytic vacuole where they get killed�whereupon their proteins ... But Listeria has evolved to escape from this vacuole and survive inside the cytosol of ... some of the bacteria are destroyed in the vacuole that feeds the MHC class II pathway of antigen ...

Plant studies reveal how, where seeds store iron

... soil can limit plant growth. Our study suggests that iron storage in the vacuole is a promising, and, before now, largely unexplored target for increasing ... how iron is stored by plants. The researchers say the stored iron in the vacuole is a key source of iron for developing seedlings. Seedlings that do not ...

Plant studies reveal how, where seeds store iron

... soil can limit plant growth. Our study suggests that iron storage in the vacuole is a promising, and, before now, largely unexplored target for increasing ... how iron is stored by plants. The researchers say the stored iron in the vacuole is a key source of iron for developing seedlings. Seedlings that do not ...

Chlamydia parasite lives off our fat

... to synthesizing ATP, all while living inside a membrane-bounded vacuole that provides a protected, fertile environment for the bacteria to grow ... found that Chlamydia not only directs lipid droplets to its protective vacuole but also causes the proliferation of new lipid droplets on the host. The ...

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Vacuole in Biological Technology

Glossary for The BioPharm Guide to Fermentation and Cell Culture

... vacuolation In cell and tissue culture, excess fluid, debris (aggregates), or gas (from sparging) can form inside a cell vacuole. A vacuole is a cavity within the cell that can be relatively clear and fluid filled, gas filled (as in a number of blue-green algae), or ...
Vacuole in Biological Definition

Plasmolysis

... membrane peeling off of the cell wall and the vacuole collapsing. Plasmolysis occurs when a plant ... permeable plasma membrane . The large vacuole in the center of the cell originally contains a ... solution on the other side of the membrane. The vacuole thus loses water and becomes smaller. The space ...

Vacuole

... relative cell size. The cavity that is the vacuole is considered nonprotoplasmic and the contents ... 2 Vacuoles in plant cells: the central vacuole 3 Vacuoles in budding yeast cells 4 ... by the cell for digestion . A contractile vacuole is used to pump excess water out of the cell to ...

Osmoregulation

... in protoctists and animals Amoeba makes us of a contractile vacuole to collect excretory waste, such as ammonia , from the intracellular ... osmotic action pushes water from the environment into the cytoplasm, the vacuole moves to the surface and disposes the contents into the environment. ...

Cytosol

... In eukaryotes , the cytosol contains the cell organelles . In plants, the amount of cytosol can be reduced due to the large tonoplast (central vacuole ) that takes up most of the cell interior volume. The cytosol is not a "soup" with free-floating particles, but is highly organized on the ...

Eukaryote

... prey. In multicellular organisms, hormones are often produced in vesicles. In higher plants, most of a cell's volume is taken up by a central vacuole or tonoplast, which maintains its osmotic pressure. Mitochondria and plastids Mitochondria are organelles found in nearly all eukaryotes. ...

Organelle

... centriole endoplasmic reticulum golgi apparatus lysosome myofibril plastids nucleus peroxisome ribosome vacuole vesicle melanosome Other related structures: flagellum cytosol endomembrane system nucleosome microtubule ...

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Vacuole in Biological Dictionary

Vacuoles

... A vacuole is a membrane organelle which is present in ...nic... Each plant cell has a large, single vacuole that stores biochemicals, helps in plant ... ... The membrane surrounding the plant cell vacuole is called the tonoplast. ... Encyclopedia ...

Vacuole

... A vacuole is a membrane organelle which is present in ...nic... Each plant cell has a large, single vacuole that stores biochemicals, helps in plant ... an important structural role for the plant. vacuole ( ) n. A small cavity in the cytoplasm of a ...

Contractile vacuole

... A contractile vacuole is a sub-cellular structure (organelle) ... plant and animal cells. contractile vacuole n. A membrane-bound organelle found in certain ... the cell to the outside Contractile vacuole This article does not cite any ... How does ...

Central cell

... the central cell's nucleolus and vacuole fail to ... Following fertilization, the ... ... Each plant cell has a large, single vacuole that stores biochemicals, helps ... Many plant cells have a large, single central vacuole that typically takes up ... ...

Cell vacuole

... A vacuole is a membrane organelle which is present in ... stopped growing, there is usually one very large vacuole . ... Each plant cell has a large, single vacuole that stores biochemicals, helps in plant ...

Transport vesicle

... The European Bioinformatics Institute ... vesicle -mediated transport ... GO:0048489 synaptic vesicle transport . I. GO:0070177 contractile vacuole discharge ... Transport vesicles . Definition(s) Vesicles that are involved in shuttling cargo from the ... Definition from: Unified Medical ...

NADPH

... by the NADPH oxidase system, a membrane-bound electron transport ... electrons from NADPH in the cytoplasm across the wall of the phagocytic vacuole ... NADPH oxidase is an enzyme that catalyzes the production of superoxide from oxygen ... NADPH Oxidase. Grant Support: ...

Lysosome

... living cells, ... lysosome ... Lysosome - Wikipedia, the free encyclopedia ... Lysosomes are the cells' garbage disposal system. ... The vacuole thus becomes a secondary lysosome and degrades the bacterium. ... Information about lysosome in the free online English dictionary and ...

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