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A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z
A
- abaxial - situated away from main axis, often on underside of branch
- abciss - detach, separate from main structure
- accessory - subsidiary, like a non-chlorophyll pigment
- acropetal - from the base to the apex
- aculeate - bearing a sharp point
- acute - sharply pointed
- adaxial - situated toward the axis, often on the upper side of branch
- adherent - closely attached
- adventitious - irregular, secondarily produced, not a primary part
- akaryotic - without a true nucleus
- akinete - enlarged cell with food reserves and thick cell wall which
may undergo dormancy, e.g. in Cyanobacteria
- alginate - salt form
of alginic acid, a polysaccharide
colloid produced in walls of Phaeophyceae made of mannuronic acid and
guluronic acid units
- alloparasite - parasite not related to its host
- alternate - branched at
different levels on opposite sides of main axis
- amorphous - lacking definite structure or shape
- amyloplast - colorless organelle related to starch production
- anaerobic - living without free oxygen, in a reducing atmosphere
- anisogamy - reproduction
by motile gametes that differ in morphology or behavor
- anterior - in front, or toward the front
- antheridium - cell that
produces motile male gamete
- apical - at or near the apex or top, distal
- apogamy - development
of an organism without gamete fusion (fertilization)
- apomeiosis - nuclear division without meiosis
- arcuate - curved like a bow, crescent-shaped
- articulated - jointed or segmented, e.g. Calliarthron or Halimeda
- autotrophic - capable of producing its own food
- auxiliary cell - cell in post-fertilization development in the Rhodophyta
which receives the diploid (2N) zygote nucleus and then develops the
gonimoblast filaments
- auxospore
- axis - main stem or central
line of development on which secondary or side branches are borne
A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z
Last updated: Jan. 06, 2005
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