phytomenadion
phylloquinone
vitamin K1

The reason is that phylloquinone, the most common form of the vitamin, is directly involved in photosynthesis.

Sometimes a distinction is made with phylloquinone considered natural and phytonadione considered synthetic.

A stereoisomer of phylloquinone is called vitamin k (note the difference in capitalization).

It is a type of phylloquinone.

In plasma, vitamin K exists mainly as phylloquinone, which suggests the conversion of one form to the other for release into the bloodstream.

Most recently we have concentrated on studying the phylloquinone electron acceptor in photosystem I [1,4].

The final product in plants and some cyanobacteria is phylloquinone, which functions as an electron transporter in photosynthesis.

MK-7 may be converted from phylloquinone (K) in the colon by E. coli bacteria.

Vitamin K (phylloquinone or menaquinone) deficiency causes impaired coagulation and has also been implicated in osteoporosis.

The vitamin K content of leaf vegetables is particularly high, since these are photosynthetic tissues and phylloquinone is involved in photosynthesis.

Vitamin K (phylloquinone) is antidotal.

Interaction of vitamins E and K: effect of high dietary vitamin E on phylloquinone activity in chicks.

Some serve as electron acceptors in electron transport chains such as those in photosynthesis (plastoquinone, phylloquinone), and aerobic respiration (ubiquinone).

Phylloquinone is also known as Vitamin K as it is used by animals to help form certain proteins, which are involved in blood coagulation, bone formation, and other processes.

There is tentative evidence that menaquinone (Vitamin K), but not phylloquinone (Vitamin K), intake may reduce the risk of CAD mortality.

Other names in common use include phylloquinone epoxidase, vitamin K 2,3-epoxidase, vitamin K epoxidase, and vitamin K epoxidase.

For example, cooked spinach has a 5% bioavailability of phylloquinone, however, fat added to it increases bioavailability to 13% due to the increased solubility of vitamin K in fat.

Phytene is also found as the functional group phytyl in many organic molecules of biological importance such as chlorophyll, tocopherol (Vitamin E) and phylloquinone (Vitamin K).

The 3 substrates of this enzyme are phylloquinone, an electron acceptor AH, and O, whereas its 3 products are 2,3-epoxyphylloquinone, the reduction product A, and HO.

The two natural forms are vitamin K1, or phylloquinone, which comes from plants, and vitamin K2, or menaquinone-n, a group of related substances mainly produced by bacteria, including those in the intestines.

Many bacteria, such as Escherichia coli found in the large intestine, can synthesize vitamin K (menaquinone-7 or MK-7, up to MK-11), but not vitamin K (phylloquinone).

Vitamin K, also known as phylloquinone, phytomenadione, or phytonadione, is synthesized by plants, and is found in highest amounts in green leafy vegetables because it is directly involved in photosynthesis.

The function of phylloquinone in plants appears to have no resemblance to its later metabolic and biochemical function (as "vitamin K") in animals, where it performs a completely different biochemical reaction.

Menaquinone (vitamin K), but not phylloquinone (vitamin K), intake is associated with reduced risk of CHD mortality, all-cause mortality and severe aortic calcification.

Vitamin K, the precursor of most vitamin K in nature, is a stereoisomer of phylloquinone, an important chemical in green plants, where it functions as an electron acceptor in photosystem I during photosynthesis.