منابع مشابه
Anatomy of the Cell
donic acid. Among other activities, these substances stimulate a wide variety of smooth muscle organs, depress blood pressure, and counteract the noradrenaline-induced release of free fatty acids in vivo and in vitro. Noteworthy contributions include discussions of organ sources, structure activity relations, biosynthesis, metabolism, and mechanism of action of these materials. The prolonged en...
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Ruminants evolved their multi-compartment digestive tract to effectively process plant material containing large amounts of cell wall material. We rely on forages as the sole or major feed resource for domestic ruminant animal production, even in the grain intensive North American beef and dairy systems. Unfortunately, digestibility of forages is extremely variable and almost always less than g...
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The chemical composition, anatomical characteristics, lignin distribution, and cell wall structure of oil palm frond (OPF), coconut (COIR), pineapple leaf (PALF), and banana stem (BS) fibers were analyzed. The chemical composition of fiber was analyzed according to TAPPI Methods. Light microscopy (LM) and transmission electron microscopy (TEM) were used to observe and determine the cell wall st...
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Propolis, a honeybee product, has gained popularity as a food and alternative medicine. Its constituents have been shown to exert pharmacological effects, such as anti-microbial, anti-inflammatory and anticancer. Shoot apices of Baccharis dracunculifolia (alecrim plant, Asteraceae) have been pointed out as sources of resin for green propolis. The present work aimed (i) to observe the collecting...
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The Plant Ontology (PO; http://www.plantontology.org/) is a publicly available, collaborative effort to develop and maintain a controlled, structured vocabulary ('ontology') of terms to describe plant anatomy, morphology and the stages of plant development. The goals of the PO are to link (annotate) gene expression and phenotype data to plant structures and stages of plant development, using th...
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ژورنال
عنوان ژورنال: Nature
سال: 1969
ISSN: 0028-0836,1476-4687
DOI: 10.1038/2221100a0