thallus

(redirected from thalli)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

thallus

 [thal´us]
1. a simple plant body not differentiated into root, stem, and leaf, characteristic of mycelial fungi and some algae.
2. the actively growing vegetative organism as distinguished from reproductive or resting portions, as in fungi.

thal·lus

(thal'ŭs),
A simple plant or fungus body that is devoid of roots, stems, and leaves. The vegetative growth of a fungus.
[G. thallos, a young shoot]

thallus

(thăl′əs)
n. pl. thalli (thăl′ī) or thal·luses
1. A plant body undifferentiated into stem, root, or leaf.
2. The main body of an alga, fungus, or lichen.

thal·lus

(thal'ŭs)
A simple plant or fungus body that is devoid of roots, stems, and leaves. The vegetative growth of a fungus.
[G. thallos, a young shoot]

thallus

1. a simple plant body not differentiated into root, stem and leaf, characteristic of mycelial fungi and some algae.
2. the actively growing vegetative organism as distinguished from reproductive or resting portions, as in fungi.
References in periodicals archive ?
Having collected fresh samples of thalli of Ramalina farinacea we weighed the samples before and after oven drying samples at 105 [degrees] C for 48 hours.
Part of these thalli are plain narrow lanceolate blades without any detectable structures.
Upon investigation, they discovered that the surface boundary layer of the thalli produces antifouling agents, waterborne toxic macromolecular substances of at least two types, one of which originates from the thalli and the other from an epibiotic bacterium.
When comparing the two regions, Palos Verdes and Malibu, we found no difference in the abundance of adult kelp thalli between the two regions (Table 1), probably due to the high variability in kelp abundance in Malibu in fall (Figure 3b).
Some thalli produce squamules and freely proliferate from the margin of the cup.
Indeed, Beck and Koop (2001) were unable to find distinguishable populations of photobiont cells within the different regions of the thallus in thalli of Pleurosticta acetabulum (photobiont Trebouxia arboricola) and Tremolecia atrata (photobiont Trebouxia sp.
Nutrients intake, acid base status and growth performance of growing Thalli lambs fed varying level of dietary cation anion difference.
pinicola were found on a single dam) and spread of individual thalli to adjacent logs was very rare.
Penicillus capitatus thalli were mostly concentrated on unvegetated, unconsolidated sediment, colloquially termed "potholes" or "blowouts", surrounded by the seagrass Thalassia testudinum in the LLM (26[degrees] 08' 48.
Screening of tissue cultures and thalli of lichens and some of their active constituents for inhibition of promoter-induced Epstein-Barr virus activation.
Lateral blade morphology at the three sites varied in a consistent pattern and was related to axis length; most thalli initially developed spatulate lateral blades and then produced narrower, filiform laterals.
Because the marl in the basin did not appear to be formed wholly or partially by the calcium carbonate tests of Chara thalli (none were recovered), it can be assumed that the primary source of the marl precipitate was the uptake of [CO.