Influence of ventilation closures on plant growth parameters, acclimation and anatomy of leaf surface in Scrophularia yoshimurae Yamazaki - a medicinal plant native to Taiwan
Other Title
透氣性培養容器封口對臺灣本土藥用植物—臺灣雙鋸齒 葉玄參組培苗生長、馴化及葉表構造之影響
Journal
Botanical Studies
Journal Volume
47
Journal Issue
3
Pages
259-266
Date Issued
2006-07
Date
2006-07
Author(s)
Uei-Chern Chen
Chi-Ni Hsia
Dinesh Chandra Agrawal
Hsin-Sheng Tsay
陳威臣
夏奇鈮
Dinesh Chandra Agrawal
蔡新聲
Abstract
Different ventilation closures, including aluminum foil (AF) and a varying number of dispense papers (DP) had different effects on leaf growth parameters, in vitro rooting, survival rate and the anatomical features of the leaf surface of in vitro and ex vitro acclimated plants of Scrophularia yoshimurae—an important medicinal plant. The lowest plant growth parameters and ex vitro acclimation rate (<7.0%) were obtained using AF as ventilation closure. A scanning electron microscopy (SEM) study of leaf surfaces of plants derived from different ventilation closure treatments showed that parameters—including density and size of epidermal cell and stomata, size of guard cells, and stomata aperture-differed significantly among various treatments, and this in turn affected plant survival rate. Leaves derived from AF treatment had higher epidermal cell (15094 cells/mm2) and stomata (38/mm2) densities than DP treatments. Well-ventilated container closures, such as with DP, improved the morphological characteristics of leaves and in turn enhanced the survival rate during ex vitro acclimation (maximum rate being 66.7%). The present study not only provides an improved micropropagation method of S. yoshimurae but also gives scientific reasons for the different acclimation rates obtained with various container closures.
Subjects
Hyperhydricity
In vitro culture
Scanning electron microscopy
Scrophularia yoshimurae
Stomata
Ventilation closure
Publisher
Springer
Type
journal article
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