protocorm

protocorm
A tuberous structure, formed following the germination of orchid seeds, from which develops a complete plant. It develops from an unorganized embryo in the seed, comprising only a few hundred cells. In culture, vegetative explants of several orchid species form round, smooth protocorms which can be multiplied indefinitely or induced to regenerate into a whole plant.

Glossary of Biotechnology for Food and Agriculture . 2015.

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Look at other dictionaries:

  • protocorm — PROTOCÓRM s. n. aparat vegetativ al briofitelor superioare, din tulpiniţă, frunzişoare şi rizoizi. (< fr. protocorme) Trimis de raduborza, 15.09.2007. Sursa: MDN …   Dicționar Român

  • protocorm theory — noun : a theory in botany: the sporophyte of a vascular plant is derived from a transition form comparable to the protocorm of some club mosses compare cauloid theory …   Useful english dictionary

  • protocorm — n. [Gr. protos, first; kormos, trunk] (ARTHROPODA: Insecta) A long narrow tail in the developing egg from which the trunk segments of insects form; primary trunk region …   Dictionary of invertebrate zoology

  • protocorm — noun A tuberous mass of cells that is the embryonic form of orchids and club mosses …   Wiktionary

  • protocorm — pro·to·corm …   English syllables

  • protocorm — …   Useful english dictionary

  • Melchior Treub — Melchior Treub …   Wikipedia

  • Phalaenopsis Hwafeng Redjewel — Классификация …   Википедия

  • Melchior Treub — Nacimiento 1851 Fallecimiento 1910 …   Wikipedia Español

  • cauloid theory — noun : a theory of the origin of the sporophyte of vascular plants that proposes that the plant body has been differentiated from a primeval axis or stem compare protocorm theory …   Useful english dictionary

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