Definition of coleorhiza in English:

coleorhiza

nounPlural coleorhizae ˌkɒlɪə(ʊ)ˈrʌɪzəˌkōlēəˈrīzə

Botany

A sheath protecting the root of a germinating grass or cereal grain.
〔植〕胚根鞘
Example sentencesExamples
- The coleoptile and coleorhiza are sheaths that enclose the apical meristem of the shoot and root respectively.
- Indeed, at the end of stage II, scutellum, coleoptile, coleorhiza, primary root primordium, and leaf primordia have already been reported to be present.
- Longitudinal sections of the embryonic root showed that the structures that protect the rootlet, i.e. the root-cap and coleorhiza, were strongly labelled.
- Coleoptiles and coleorhizae are found only in grasses.
- Seminal roots do not form a coleorhiza since the scutellar node tissue is already differentiated when seminal roots emerge and can easily be penetrated.
Synonyms
covering, cover, case, casing, envelope, sleeve, wrapper

Origin

Mid 19th century: from koleos 'sheath' + rhiza 'root'.

Definition of coleorhiza in US English:

coleorhiza

nounˌkōlēəˈrīzə

Botany

A sheath protecting the root of a germinating grass or cereal grain.
〔植〕胚根鞘
Example sentencesExamples
- Longitudinal sections of the embryonic root showed that the structures that protect the rootlet, i.e. the root-cap and coleorhiza, were strongly labelled.
- Seminal roots do not form a coleorhiza since the scutellar node tissue is already differentiated when seminal roots emerge and can easily be penetrated.
- Coleoptiles and coleorhizae are found only in grasses.
- The coleoptile and coleorhiza are sheaths that enclose the apical meristem of the shoot and root respectively.
- Indeed, at the end of stage II, scutellum, coleoptile, coleorhiza, primary root primordium, and leaf primordia have already been reported to be present.
Synonyms
covering, cover, case, casing, envelope, sleeve, wrapper

Origin

Mid 19th century: from koleos ‘sheath’ + rhiza ‘root’.

词汇	coleorhiza
释义	Definition of coleorhiza in English: coleorhiza nounPlural coleorhizae ˌkɒlɪə(ʊ)ˈrʌɪzəˌkōlēəˈrīzə Botany A sheath protecting the root of a germinating grass or cereal grain. 〔植〕胚根鞘 Example sentencesExamples The coleoptile and coleorhiza are sheaths that enclose the apical meristem of the shoot and root respectively. Indeed, at the end of stage II, scutellum, coleoptile, coleorhiza, primary root primordium, and leaf primordia have already been reported to be present. Longitudinal sections of the embryonic root showed that the structures that protect the rootlet, i.e. the root-cap and coleorhiza, were strongly labelled. Coleoptiles and coleorhizae are found only in grasses. Seminal roots do not form a coleorhiza since the scutellar node tissue is already differentiated when seminal roots emerge and can easily be penetrated. Synonyms covering, cover, case, casing, envelope, sleeve, wrapper Origin Mid 19th century: from koleos 'sheath' + rhiza 'root'. Definition of coleorhiza in US English: coleorhiza nounˌkōlēəˈrīzə Botany A sheath protecting the root of a germinating grass or cereal grain. 〔植〕胚根鞘 Example sentencesExamples Longitudinal sections of the embryonic root showed that the structures that protect the rootlet, i.e. the root-cap and coleorhiza, were strongly labelled. Seminal roots do not form a coleorhiza since the scutellar node tissue is already differentiated when seminal roots emerge and can easily be penetrated. Coleoptiles and coleorhizae are found only in grasses. The coleoptile and coleorhiza are sheaths that enclose the apical meristem of the shoot and root respectively. Indeed, at the end of stage II, scutellum, coleoptile, coleorhiza, primary root primordium, and leaf primordia have already been reported to be present. Synonyms covering, cover, case, casing, envelope, sleeve, wrapper Origin Mid 19th century: from koleos ‘sheath’ + rhiza ‘root’.
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