Details
| Original language | English |
|---|---|
| Pages (from-to) | 265-278 |
| Number of pages | 14 |
| Journal | Scientia horticulturae |
| Volume | 97 |
| Issue number | 3-4 |
| Early online date | 14 Jan 2003 |
| Publication status | Published - 17 Feb 2003 |
| Externally published | Yes |
Abstract
The number, distribution, size, and function of stomata and wettability of the sweet cherry (Prunus avium L.) fruit surface were investigated. The number of stomata per fruit differed significantly among sweet cherry cultivars, ranging from 143 ± 26 per fruit in 'Adriana' to 2124 ± 142 per fruit in 'Hedelfinger'. The number of stomata per fruit was not affected by fruit mass ('Burlat'). For a given cultivar, the stylar scar region had the highest stomatal density, followed by ventral suture or cheek. The stem cavity region was essentially astomatous. Stomatal density decreased as distance from the scar increased. Cross-sectional areas of stomatal pores had a log-normal distribution and differed among cultivars, with medians ranging from 39.0 to 105.2 μm2 for 'Van' and 'Sam', respectively. The length/width ratio of stomatal pores increased in the course of a day in early stage II, but not in mature stage III fruit. Treating exocarp segments with ABA (0.1 mM) or sucrose (1 M) decreased length/width ratios of stomatal pores in early stage II fruit, but not in the mature stage III, suggesting that stomata were non-functional at maturity. Contact angles of 1 μl water droplets (71 mN m-1) with the sweet cherry fruit surface averaged 92.4±0.6° (n = 164) across years and cultivars and did not differ between regions (cheek, suture vs. stylar end). The critical surface tension of the sweet cherry fruit was not affected by developmental stage (stage II vs. mature stage III 'Burlat' fruit) or cultivar, and averaged 24.9 mN m-1 making Poiseuille-flow of water through open stomata unlikely.
Keywords
- Contact angle, Prunus avium, Surface tension, Wetting
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Horticulture
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In: Scientia horticulturae, Vol. 97, No. 3-4, 17.02.2003, p. 265-278.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Surface characteristics of sweet cherry fruit
T2 - Stomata-number, distribution, functionality and surface wetting
AU - Peschel, Stefanie
AU - Beyer, Marco
AU - Knoche, Moritz
PY - 2003/2/17
Y1 - 2003/2/17
N2 - The number, distribution, size, and function of stomata and wettability of the sweet cherry (Prunus avium L.) fruit surface were investigated. The number of stomata per fruit differed significantly among sweet cherry cultivars, ranging from 143 ± 26 per fruit in 'Adriana' to 2124 ± 142 per fruit in 'Hedelfinger'. The number of stomata per fruit was not affected by fruit mass ('Burlat'). For a given cultivar, the stylar scar region had the highest stomatal density, followed by ventral suture or cheek. The stem cavity region was essentially astomatous. Stomatal density decreased as distance from the scar increased. Cross-sectional areas of stomatal pores had a log-normal distribution and differed among cultivars, with medians ranging from 39.0 to 105.2 μm2 for 'Van' and 'Sam', respectively. The length/width ratio of stomatal pores increased in the course of a day in early stage II, but not in mature stage III fruit. Treating exocarp segments with ABA (0.1 mM) or sucrose (1 M) decreased length/width ratios of stomatal pores in early stage II fruit, but not in the mature stage III, suggesting that stomata were non-functional at maturity. Contact angles of 1 μl water droplets (71 mN m-1) with the sweet cherry fruit surface averaged 92.4±0.6° (n = 164) across years and cultivars and did not differ between regions (cheek, suture vs. stylar end). The critical surface tension of the sweet cherry fruit was not affected by developmental stage (stage II vs. mature stage III 'Burlat' fruit) or cultivar, and averaged 24.9 mN m-1 making Poiseuille-flow of water through open stomata unlikely.
AB - The number, distribution, size, and function of stomata and wettability of the sweet cherry (Prunus avium L.) fruit surface were investigated. The number of stomata per fruit differed significantly among sweet cherry cultivars, ranging from 143 ± 26 per fruit in 'Adriana' to 2124 ± 142 per fruit in 'Hedelfinger'. The number of stomata per fruit was not affected by fruit mass ('Burlat'). For a given cultivar, the stylar scar region had the highest stomatal density, followed by ventral suture or cheek. The stem cavity region was essentially astomatous. Stomatal density decreased as distance from the scar increased. Cross-sectional areas of stomatal pores had a log-normal distribution and differed among cultivars, with medians ranging from 39.0 to 105.2 μm2 for 'Van' and 'Sam', respectively. The length/width ratio of stomatal pores increased in the course of a day in early stage II, but not in mature stage III fruit. Treating exocarp segments with ABA (0.1 mM) or sucrose (1 M) decreased length/width ratios of stomatal pores in early stage II fruit, but not in the mature stage III, suggesting that stomata were non-functional at maturity. Contact angles of 1 μl water droplets (71 mN m-1) with the sweet cherry fruit surface averaged 92.4±0.6° (n = 164) across years and cultivars and did not differ between regions (cheek, suture vs. stylar end). The critical surface tension of the sweet cherry fruit was not affected by developmental stage (stage II vs. mature stage III 'Burlat' fruit) or cultivar, and averaged 24.9 mN m-1 making Poiseuille-flow of water through open stomata unlikely.
KW - Contact angle
KW - Prunus avium
KW - Surface tension
KW - Wetting
UR - http://www.scopus.com/inward/record.url?scp=0037450747&partnerID=8YFLogxK
U2 - 10.1016/S0304-4238(02)00207-8
DO - 10.1016/S0304-4238(02)00207-8
M3 - Article
AN - SCOPUS:0037450747
VL - 97
SP - 265
EP - 278
JO - Scientia horticulturae
JF - Scientia horticulturae
SN - 0304-4238
IS - 3-4
ER -