bundle sheath

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• bundle sheath — noun : a compact layer of commonly parenchymatous cells forming a sheath around a vascular bundle …   Useful english dictionary

• bundle — A structure composed of a group of fibers, muscular or nervous; a fasciculus. SYN: fasciculus (3) [TA]. aberrant bundles a group, or groups, of fibers from the corticobulbar or corticonuclear tract, directed to each of the motor …   Medical dictionary

• Vascular bundle — A vascular bundle is a part of the transport system in vascular plants. The transport itself happens in vascular tissue, which exists in two forms: xylem and phloem. Both these tissues are present in a vascular bundle, which in addition will… …   Wikipedia

• vascular bundle — A strand of tissue containing primary xylem and primary phloem (and procambium if present) and frequently enclosed by a bundle sheath of parenchyma or fibres …   Glossary of Biotechnology

• vascular bundle — n. Bot. an isolated unit of the conducting system of vascular plants, consisting of xylem and phloem, frequently with other interspersed cells or a sheath of thick walled cells …   English World dictionary

• bundlesheath — bundle sheath n. A layer or region of cells surrounding a vascular bundle. * * * …   Universalium

• C4 carbon fixation — is one of three biochemical mechanisms, along with C3 and CAM photosynthesis, used in carbon fixation. It is named for the 4 carbon molecule present in the first product of carbon fixation in these plants, in contrast to the 3 carbon molecule… …   Wikipedia

• photosynthesis — photosynthetic /foh teuh sin thet ik/, adj. photosynthetically, adv. /foh teuh sin theuh sis/, n. Biol., Biochem. (esp. in plants) the synthesis of complex organic materials, esp. carbohydrates, from carbon dioxide, water, and inorganic salts,… …   Universalium

• Evolutionary history of plants — Plants have evolved through increasing levels of complexity, from the earliest algal mats, through bryophytes, lycopods, ferns and gymnosperms to the complex angiosperms of today. While the simple plants continue to thrive, especially in the… …   Wikipedia

• Phosphoenolpyruvate carboxykinase — Not to be confused with Phosphoenolpyruvate carboxylase. Phosphoenolpyruvate carboxykinase PDB rendering based on 1khb. Identifiers Symbol …   Wikipedia

• Liming (leather processing) — The liming operation in leather, is a drum/paddle or pit based operation where four main objectives are met. The obectives are [citation title = Leather Technician s Handbook first = J.H. | last = Sharphouse page = 104 publisher = Leather… …   Wikipedia