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Jason D. Lattier, Hsuan Chen, and Ryan N. Contreras

positive correlation with stomata size and a negative correlation with stomata density across a wide range of angiosperms ( Beaulieu et al., 2008 ). Stomata have proven useful anatomical characters to differentiate ploidy levels in woody plant species

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Liu XiaoYing, Guo ShiRong, Xu ZhiGang, Jiao XueLei, and Takafumi Tezuka

of leaves, ultrastructure of chloroplasts, palisade/spongy tissue, and stomata of cherry tomato leaves. Materials and Methods Plant materials and culture conditions. Seedlings of cherry tomato ( Solanum lycopersicum Mill.) (provided by Taiwan Farmers

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Xiaohui Lin, Hongbo Li, Shenggen He, Zhenpei Pang, Shuqin Lin, and Hongmei Li

flowers, including carnations, are the result of stomatal water loss that gradually exceeds the rate of water uptake through the xylem vessels in the cut-stem ends ( Mattos et al., 2017 ; van Doorn, 2012 ). The stomata of higher plants occur mainly on the

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Kathryn Homa, William P. Barney, Daniel L. Ward, Christian A. Wyenandt, and James E. Simon

morphological characteristics such as stomata density and leaf curvature influence infection of P. belbahrii in different Ocimum species, and if so, could be effective visual markers for screening in plant breeding. The large morphological variations in the

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Lisa Alexander

which was measured in 2016 only. Stomata and chloroplast counts. For stomatal measurements, the top-most fully expanded healthy leaf from each plant in three full-sibling H . macrophylla families (n = 72 plants) was collected between 14 and 18 Sept

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Stefanie Peschel and Moritz Knoche

focused on CM characteristics such as the CM and wax mass, the (elastic) strain of the CM, the densities of stomata and of microcracks in the exocarp, and the permeability of the exocarp to water transport in transpiration and in osmotic water uptake

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Susan M. Stieve and Dennis P. Stimart

Eighteen commercially used white Antirrhinum majus (snapdragon) inbreds, a hybrid of Inbred 1 × Inbred 18 (Hybrid 1) and an F2 population (F2) of Hybrid 1 were evaluated for stomatal size and density and transpiration rate to determine their affect on postharvest longevity. Stems of each genotype were cut to 40 cm, placed in distilled water and discarded when 50% of florets wilted or browned. Postharvest longevity of inbreds ranged from 3.7 to 12.9 days; Hybrid 1 and the F2 averaged 3.0 and 9.1 days postharvest, respectively. Leaf impressions showed less than 3% of stomata were found on the adaxial leaf surface. Inbred abaxial stomatal densities ranged from 128.2 to 300.7 stomata mm-2; Hybrid 1 and the F2 averaged 155 and 197 stomata mm-2, respectively. Transpiration measurments on leaves of stems 24 hr after cutting were made with a LI-COR 1600 Steady State Porometer. Statistical analysis showed inbreds were significantly different based on postharvest longevity, stomatal size and density and transpiration of cut stems.

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Kourosh Vahdati, Zeinab Maleki Asayesh, Sasan Aliniaeifard, and Charles Leslie

., 1998 ). Long-term exposure to high RH decreases the closing ability of stomata because of low foliar abscisic acid (ABA) levels (stomatal malfunctioning). As a result, the capacity of leaves to control water loss decreases when plants are exposed to

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Thomas O. Athoo, Andreas Winkler, and Moritz Knoche

analysis (Cell P ; Olympus Europa, Hamburg, Germany). To establish the distribution of stomata along the pedicel, ‘Sam’ pedicels were cut into five sections each ≈8 mm in length, which were then cut along their long axes into two halves and incubated in 50

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M. Capellades, R. Fontarnau, C. Carulla, and P. Debergh

The surface structure of rose (Rosa multiflora L. cv. Montse) leaves formed in vitro under several environmental conditions (light level, relative humidity) and with various growth regulator treatments was studied by light and scanning electron microscopy. The epidermis from leaves developed in cultures grown under a higher light level and a lower relative humidity (80 μmol·s-1·m-2 and 75% RH) than the conditions used in commercial laboratories (25 μmol·s-1·m-2 and 100% RH) showed anatomical modifications of the epicuticular wax, stomata, and epidermal cells similar to that of greenhouse-grown plant leaves. These results indicate that cultured plantlets can resemble greenhouse-grown plants under modified environmental conditions. In vitro pretreatment will reduce transplant losses and shorten the acclimatization period in the greenhouse.