英语词汇“thallus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

thallus

/ˈθaləs

noun (plural thalli /ˈθalʌɪ/ /ˈθaliː/) Botany

A plant body that is not differentiated into stem and leaves and lacks true roots and a vascular system. Thalli are typical of algae, fungi, lichens, and some liverworts.Oomycetes resemble fungi in the form of their thalli, ecology, and the plant parasitic ability of some species and are traditionally studied by mycologists....

Some causal relationships between morphology and hydrodynamic performance have been established for macroalgae, through theoretical studies and hydrodynamic comparisons of differently exposed thalli.
Ceratopteris spores, like fucoid zygotes, divide unequally to produce a small rhizoid cell and a larger cell that develops into the thallus.

Derivatives

thalloid

adjective ...

Furthermore, logs provide persistent, exposed substrate where thalloid gametophytes can escape smothering by deciduous hardwood leaf litter.
Ultrastructural research has revealed that the placental organization is remarkably diverse between major bryophyte groups but that, with the exception of simple thalloid liverworts, it shows only minor intra-group variation.
When a spore germinates, it produces a flat thalloid plant with a greasy blue-green color and odd morphology.

Origin

Early 19th century: from Greek thallos 'green shoot', from thallein 'to bloom'.

单词	thallus
释义	thallus /ˈθaləs / noun (plural thalli /ˈθalʌɪ/ /ˈθaliː/) Botany A plant body that is not differentiated into stem and leaves and lacks true roots and a vascular system. Thalli are typical of algae, fungi, lichens, and some liverworts.Oomycetes resemble fungi in the form of their thalli, ecology, and the plant parasitic ability of some species and are traditionally studied by mycologists.... Some causal relationships between morphology and hydrodynamic performance have been established for macroalgae, through theoretical studies and hydrodynamic comparisons of differently exposed thalli. Ceratopteris spores, like fucoid zygotes, divide unequally to produce a small rhizoid cell and a larger cell that develops into the thallus. Derivatives thalloid adjective ... Furthermore, logs provide persistent, exposed substrate where thalloid gametophytes can escape smothering by deciduous hardwood leaf litter. Ultrastructural research has revealed that the placental organization is remarkably diverse between major bryophyte groups but that, with the exception of simple thalloid liverworts, it shows only minor intra-group variation. When a spore germinates, it produces a flat thalloid plant with a greasy blue-green color and odd morphology. Origin Early 19th century: from Greek thallos 'green shoot', from thallein 'to bloom'.
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