| 词汇 | stomata |
| 释义 | stomata plural ofstomaspecialized Examples of stomatastomata The number of stomata was counted at each point, using a microscope with a lattice micrometer. The distribution of the stomata could not be determined, but their polar axis lies along the length of the leaf. The stomata were observed to respond to changing ambient conditions within three minutes. Stomata are present on some leaf fragments, but they are inconspicuous. The stomata are sunken below the surface of the epidermis and are regularly aligned with their polar axis parallel to the length of the leaf. The number of stomata per field was counted using a light microscope with ten replicas per leaf. However, water loss can also occur across the trichomes and the cuticle when stomata are closed. This was also true for the upper epidermis of tannia and sweet potato where stomata were present. They too observed partial closure of the stomata during the day, even in irrigated trees. This species had two types of stomata, large and small. These two species did not have stomata on the upper epidermis. Because of the capacity of stomata to control water loss, relative turgidity measurements do not appear to be a good measure of plant water status. Some of the small stomata were somewhat aggregated. Thus, among species, leaves with denser stomata tended to be induced quicker. The diameter of three stomata was measured on each leaf. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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