Wettability, Polarity, and Water Absorption of Holm Oak Leaves: Effect of Leaf Side and Age

Fernández, Victoria; Sancho‐Knapik, Domingo; Guzmán, Paula; Peguero‐Pina, José Javier; Gil, Luís; Karabourniotis, George; Khayet, M.; Fasseas, Costas; Heredia‐Guerrero, José A.; Heredia, Antonio; Gil‐Pelegrín, Eustaquio

doi:10.1104/pp.114.242040

Cited by 168 publications

(151 citation statements)

References 87 publications

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“…Leaf hairs have several functions, including protection from abiotic and biotic stress factors (Fernández et al, 2014; and references therein). The high hair density of winter leaves increases the reflectance of the leaves and thus protects the leaf from photoinhibition (Skelton et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Morphological characteristics and photosynthetic capacity of Fragaria vesca L. winter and summer leaves

Åström

Metsovuori

Saarinen

et al. 2015

Flora - Morphology, Distribution, Functional Ecology of Plants

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Section: Discussionmentioning

confidence: 99%

Morphological characteristics and photosynthetic capacity of Fragaria vesca L. winter and summer leaves

Åström

Metsovuori

Saarinen

et al. 2015

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…It has been suggested that both types of trichomes are involved in protection against water loss by reducing air movement at the leaf surface and by increasing the thickness of the boundary layer of leaves (Tattini et al 2000). Moreover, both types of trichomes were mainly on the veins (II, Figure 1b, c) so they can also be physically bound to the water movement between the inner and outer parts of the leaves as suggested by Fernández et al (2014). The increase in density of stomata in silver birch was accompanied by the reduction in leaf area by GW.…”

Section: Leaf and Stem Morphologymentioning

confidence: 94%

Effect of waterlogging on boreal forest tree seedlings during dormancy and early growing season

Wang¹

2017

Diss. For.

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More precipitation in the form of rain in winter together with deteriorated ditch networks may expose drained peatland forestry to winter or spring waterlogging in boreal forests. The response of main boreal forest species on soil waterlogging is important for predicting forest productivity and justifying the demand for ditch network maintenance. In this study, the aim was to find out the physiological and growth responses of 1-year-old Norway spruce (Picea abies (L.) Karst.), silver birch (Betula pendula Roth) and pubescent birch (Betula pubescens Ehrh.) seedlings subjected to one-month waterlogging at the end of the dormancy phase, and to find out the morphology, physiology and growth of silver birch and pubescent birch seedlings subjected to one-month waterlogging at the beginning of the growing season.Two experiments were carried out in growth chambers. In experiment 1, Norway spruce seedlings were subjected to either no waterlogging or waterlogging for one month at 2 o C, after which a six-week follow-up growing season allowed the seedlings to recover. In experiment 2, silver birch and pubescent birch seedlings went through a four-week dormancy (weeks 1-4), a four-week early growing season (weeks 5-8), and a four-week late growing season (weeks 9-12). The treatments were 1) no waterlogging throughout the experiment (NW); 2) four-week waterlogging during dormancy (Dormancy waterlogging, DW); 3) four-week waterlogging during the early growing season (Growth waterlogging, GW); and 4) four-week dormancy waterlogging followed by four-week growth waterlogging during the early growing season (DWGW).Dormancy waterlogging reduced root volume and increased root mortality, but did not affect dark-acclimated chlorophyll fluorescence (F v /F m ) or the biomass of leaves, stems and roots in Norway spruce. Root biomass and root hydraulic conductance (K r ) of silver birch was reduced but aboveground organs were not affected by dormancy waterlogging. On the contrary, in pubescent birch root morphology, biomass and K r were not affected, but gas exchange was reduced by dormancy waterlogging. However, the biomass of leaves and stems was not negatively affected in pubescent birch. In conclusion, these tree species can tolerate a one-month winter waterlogging well.Growth waterlogging led to the reduction of stomatal conductance (g s ), and thus the reduction of light-saturated photosynthesis rate (A max ) in both birch species, although recovery was seen during the follow-up growing season. It also led to lower leaf area in both birch species. Growth waterlogging led also to decreased the K, Ca, Mg, Mn and B contents of leaves in silver birch, whereas in pubescent birch only Ca and Mg contents were decreased. In pubescent birch, fine cluster roots, the incidence of non-glandular trichomes, and stem lenticels were increased by growth waterlogging. However, silver birch did not show such acclimation to waterlogging. In conclusion, growth waterlogging caused more negative effects to both birch species than dormancy waterl...

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“…Research on plant leaf wettability has been carried out by many authors (Hall and Burke 1974;Barthlott and Neinhuis 1997;Brewer and Smith 1997;Brewer and Nunez 2007;Holder 2007;Fernández et al 2014). Comparing wettability results is not easy, since the leaf wettability (adaxial side) has been proved to change throughout the growing season (Van Wittenberghe et al 2012).…”

Section: Discussionmentioning

confidence: 99%

“…They observed the different spreading of water drops caused by the appearance of secondary vein, puckered ridges, or the presence of hydrophobic crystalline waxes. The change of the drop shape on the leaf surface can also be explained by the absorption of water droplets by the leaf surface (Fernández et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Contact angle measurements and water drop behavior on leaf surface for several deciduous shrub and tree species from a temperate zone

Papierowska

Szporak-Wasilewska

Szewińska

et al. 2018

Trees

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Key message Leaf CA measurement should take into account angle variation during measurement time. Leaf wettability of common deciduous forest plants is characterized by wetting contact angles ranging from 60° to 140° with a significant variation between species of the same family. Abstract Leaf wettability is an important phenomenon that has an influence on several processes such as the hydrological cycle, plant pathogen growth, or pollutant and pesticide absorption/deposition. The main objective of this research was to investigate the leaf wettability differences of 19 species (16 trees and 3 shrubs) of deciduous plants commonly occurring in Polish forests (temperate climate). The measurements were gathered as follows: 20 undamaged leaves were selected for each species and the wettability was determined by contact angle measurements with an optical goniometer CAM 100 using the sessile drop method. The contact angle was measured with 1-s intervals during 2 min from droplet deposition on adaxial and abaxial leaf surface. Laboratory analyses were completed during the summer of 2016 during full vegetation growth. A general CA decrease with time was observed on both leaf sides. The contact angle values ranged from 60° to 140° depending on species and leaf side. Differences between contact angle values at the beginning and the end of measurement reached 23.6° and engendered changes of wetting classes for some species. In many cases, no wettability class change was observed despite a CA lowering of 20°. The abaxial side was found to be the more repellent for 14 out of 19 species. Altogether, the leaves were classified from highly wettable to highly non-wettable, probably depending on the plant-survival strategy.

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Wettability, Polarity, and Water Absorption of Holm Oak Leaves: Effect of Leaf Side and Age

Cited by 168 publications

References 87 publications

Morphological characteristics and photosynthetic capacity of Fragaria vesca L. winter and summer leaves

Morphological characteristics and photosynthetic capacity of Fragaria vesca L. winter and summer leaves

Effect of waterlogging on boreal forest tree seedlings during dormancy and early growing season

Contact angle measurements and water drop behavior on leaf surface for several deciduous shrub and tree species from a temperate zone

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