| 释义 |
Definition of plastid in English: plastidnoun ˈplastɪdˈplæstəd Botany Any of a class of small organelles in the cytoplasm of plant cells, containing pigment or food. Example sentencesExamples - Alternatively, embryo plastids and leaf chloroplasts were prepared as described, but without illumination.
- In general, stromules are more abundant in tissues containing non-green plastids, and in cells containing smaller plastids.
- Sieve-tube members are also living cells in leaves, and contain plastids but not chloroplasts.
- This feature is especially obvious in plant cells containing both mitochondria and plastids.
- These protoplasts had a thick cytoplasm with numerous plastids and mitochondria.
Origin Late 19th century: from German, based on Greek plastos 'shaped'. Definition of plastid in US English: plastidnounˈplastədˈplæstəd Botany Any of a class of small organelles, such as chloroplasts, in the cytoplasm of plant cells, containing pigment or food. Example sentencesExamples - Sieve-tube members are also living cells in leaves, and contain plastids but not chloroplasts.
- These protoplasts had a thick cytoplasm with numerous plastids and mitochondria.
- This feature is especially obvious in plant cells containing both mitochondria and plastids.
- In general, stromules are more abundant in tissues containing non-green plastids, and in cells containing smaller plastids.
- Alternatively, embryo plastids and leaf chloroplasts were prepared as described, but without illumination.
Origin Late 19th century: from German, based on Greek plastos ‘shaped’. |