Definition of pulvinus in English:

pulvinus

nounPlural pulvini pʌlˈvʌɪnəs-ˈvēnəs

Botany

An enlarged section at the base of a leaf stalk in some plants, which is subject to changes of rigidity leading to movements of the leaf or leaflet.
〔植〕叶座，叶枕
Example sentencesExamples
- Soluble proteins were extracted from gravistimulated pulvini and subjected to protein phosphorylation reactions.
- When the promoter fragment was resolved into smaller portions, further elements could be identified that conferred root, pulvinus and anther expression.
- With the exception of petiole length, pulvinus length and stipule length, the other leaf characteristics overlap between the two species.
- The ion flux occurs within seconds after gravistimulation and establishes pH gradients across roots and maize pulvini.
- Leaves move by means of turgor pressure changes at the pulvinus at the base of each lamina.

Origin

Mid 19th century: from Latin, literally 'cushion'.

Definition of pulvinus in US English:

pulvinus

noun-ˈvēnəs

Botany

An enlarged section at the base of a leaf stalk in some plants that is subject to changes of turgor, leading to movements of the leaf or leaflet.
〔植〕叶座，叶枕
Example sentencesExamples
- With the exception of petiole length, pulvinus length and stipule length, the other leaf characteristics overlap between the two species.
- Leaves move by means of turgor pressure changes at the pulvinus at the base of each lamina.
- When the promoter fragment was resolved into smaller portions, further elements could be identified that conferred root, pulvinus and anther expression.
- The ion flux occurs within seconds after gravistimulation and establishes pH gradients across roots and maize pulvini.
- Soluble proteins were extracted from gravistimulated pulvini and subjected to protein phosphorylation reactions.

Origin

Mid 19th century: from Latin, literally ‘cushion’.

词汇	pulvinus
释义	Definition of pulvinus in English: pulvinus nounPlural pulvini pʌlˈvʌɪnəs-ˈvēnəs Botany An enlarged section at the base of a leaf stalk in some plants, which is subject to changes of rigidity leading to movements of the leaf or leaflet. 〔植〕叶座，叶枕 Example sentencesExamples Soluble proteins were extracted from gravistimulated pulvini and subjected to protein phosphorylation reactions. When the promoter fragment was resolved into smaller portions, further elements could be identified that conferred root, pulvinus and anther expression. With the exception of petiole length, pulvinus length and stipule length, the other leaf characteristics overlap between the two species. The ion flux occurs within seconds after gravistimulation and establishes pH gradients across roots and maize pulvini. Leaves move by means of turgor pressure changes at the pulvinus at the base of each lamina. Origin Mid 19th century: from Latin, literally 'cushion'. Definition of pulvinus in US English: pulvinus noun-ˈvēnəs Botany An enlarged section at the base of a leaf stalk in some plants that is subject to changes of turgor, leading to movements of the leaf or leaflet. 〔植〕叶座，叶枕 Example sentencesExamples With the exception of petiole length, pulvinus length and stipule length, the other leaf characteristics overlap between the two species. Leaves move by means of turgor pressure changes at the pulvinus at the base of each lamina. When the promoter fragment was resolved into smaller portions, further elements could be identified that conferred root, pulvinus and anther expression. The ion flux occurs within seconds after gravistimulation and establishes pH gradients across roots and maize pulvini. Soluble proteins were extracted from gravistimulated pulvini and subjected to protein phosphorylation reactions. Origin Mid 19th century: from Latin, literally ‘cushion’.
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