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Magnesium

Magnesium

(Science: chemical, element) An essential divalent cation. The major role is as the chelated ion in atp and presumably other triphosphonucleotides.

The magnesium atp complex is the sole biologically active form of atp. The other essential role of magnesium is as the central ion of chlorophyll. Cellular concentration is less than 5mM. Serum concentration approximately 1mM.

pharmacologic action: Hypomagnesemia can cause refractory ventricular fibrillation or ventricular tachycardia.

Uses: known hypomagnesemic states - suspect hypomagnesmia in alcoholics, chronic disease states, or others with poor nutrition; treatment of choice for torsade de pointes.

Dose: 1-2 grams iv push for cardiac arrest, over 1 to 2 minutes for Torsades, and over 5 to 60 minutes for acute myocardial infarction.

potential complications: transient flushing and diaphoresis, sinus bradycardia, hypotension, hyporeflexia and paralysis with overdose.

Abbreviation: mg


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... regulates transport connected with different nutrients into the plant AND will be also involved on the activation regarding certain plant enzymes. Magnesium is usually the important area of chlorophyll, a good important plant pigment clicks inside photosynthesis. Iron is usually needed pertaining ...

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by MichaelJK8
Mon Mar 16, 2015 5:19 am
 
Forum: Botany Discussion
Topic: Mineral Nutrition In Plants
Replies: 10
Views: 15552

Mineral Nutrition In Plants

... regulates transport connected with different nutrients into the plant AND will be also involved on the activation regarding certain plant enzymes. Magnesium is usually the important area of chlorophyll, a good important plant pigment clicks inside photosynthesis. Iron is usually needed pertaining ...

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by MichaelJK8
Mon Mar 02, 2015 1:02 pm
 
Forum: Botany Discussion
Topic: Mineral Nutrition In Plants
Replies: 10
Views: 15552

principle of error-prone PCR???

I don't know about the effect on the enzyme. However, Mn stabilizes double stranded DNA and from practical PCR standpoint - excessive magnesium allows for annealing and elongation of mismatched primers.

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by Cat
Sun Oct 12, 2014 7:39 pm
 
Forum: Molecular Biology
Topic: principle of error-prone PCR???
Replies: 5
Views: 2474

principle of error-prone PCR???

I've never heard about Mn in PCR (which doesn't mean it's not used) and to my knowledge they always provide magnesium, but there are proteins which work better with one or another (e.g. pyrophosphatase is specific for pyrophosphate with one metal while with the other it can cleave ...

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by JackBean
Tue Sep 30, 2014 8:19 am
 
Forum: Molecular Biology
Topic: principle of error-prone PCR???
Replies: 5
Views: 2474

Agriculture and Microbiology come together (Research Prjct)

... of what will go into my home made nutrients. I checked and all of them are usable by plants. Potassium Nitrate Boron Nitrite Calcium Phosphate Magnesium Powder Ammonium Phosphate Magnesium Phosphate Zinc Oxide Iron Chelate and Copper Chelate I also found a source for bulk chelated metal powder ...

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by Sophiahotep
Thu Nov 14, 2013 9:29 pm
 
Forum: Microbiology
Topic: Agriculture and Microbiology come together (Research Prjct)
Replies: 2
Views: 5819
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