<i>Polystichum munitum</i> (Dryopteridaceae) varies geographically in its capacity to absorb fog water by foliar uptake within the redwood forest ecosystem

Limm, Emily; Dawson, Todd E.

doi:10.3732/ajb.1000081

Cited by 65 publications

(51 citation statements)

References 49 publications

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“…This is a topic of a growing interest for plant ecophysiology (Helliker & Griffiths 2007, Limm & Dawson 2010, Berry et al 2014, Rosado & Holder 2013, Berry et al 2013, Helliker 2014 as they may play an important ecophysiological role.…”

Section: Discussionmentioning

confidence: 99%

Seasonal variability of interception and water wettability of common oak leaves

Klamerus‐Iwan

Błońska

2016

Ann. For. Res.

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A. Klamerus-Iwan, E. BłonskaKlamerus-Iwan A., Błonska E., 2017. Seasonal variability of interception and water wettability of common oak leaves. Ann. For. Res. 60(1): 63-73.Abstract. Wettability of leaves and the resulting amount of interception loss of tree crowns is an important component of the atmosphere-tree stand-soil system balance. In the study, we hypothesized that changes occurring in leaves during the vegetation period can significantly affect the amount of rainwater retained by plants and wettability of leaves which is expressed by the contact angle between drops and leaves. We evaluated the hypothesis based on measurement series, which combined direct spraying of leaves with water at different stages of development at a constant temperature with observations made with an electron scanner which was used to determine changes occurring within a leaf, while the photographic method was used to analyze the contact angle of drops. The study involved common oak (Quercus robur). Samples of twigs derived from this species were collected in the area of Przedbórz (Poland) forest district, in particular from the trees with well-developed crowns. Twigs were collected from 10 trees of similar age (35-40 years). The resulting database contained experimental data on changes of raindrop adhesion on oak leaves throughout the growing season. The internal contact angle of drops was within the range of 150° on the upper side of the leaf and 160° on the underside in May, up to 15° and 35° in November on the upper and underside of the leaves. Loss of interception was established at 6% at the beginning of the growing season up to 22% in autumn. It was concluded that the wettability and the level of interception increases in line with the age of a leaf.

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Section: Discussionmentioning

confidence: 99%

Seasonal variability of interception and water wettability of common oak leaves

Klamerus‐Iwan

Błońska

2016

Ann. For. Res.

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“…Burgess and Dawson, 2004;Oliveira et al, 2005;Breshears et al, 2008;Limm et al, 2009;Simonin et al, 2009;Limm and Dawson, 2010;Berry et al, 2013Berry et al, , 2014Gotsch et al, 2014). Holm oak is a species native to Mediterranean-type climates where summer drought is imposed by a combination of high temperatures and low precipitation.…”

Section: Leaf Water Uptake and Ecophysiological Implicationsmentioning

confidence: 99%

“…Such surface features together with their chemical composition (Khayet and Fernández, 2012) may lead to a high degree of roughness and hydrophobicity (Koch and Barthlott, 2009;Konrad et al, 2012). The interactions of plant surfaces with water have been addressed in some investigations (Brewer et al, 1991;Brewer and Smith, 1997;Pandey and Nagar, 2003;Hanba et al, 2004;Dietz et al, 2007;Holder, 2007aHolder, , 2007bFernández et al, 2011Fernández et al, , 2014Roth-Nebelsick et al, 2012;Wen et al, 2012;Urrego-Pereira et al, 2013) and are a topic of growing interest for plant ecophysiology (Helliker and Griffiths, 2007;Aryal and Neuner, 2010;Limm and Dawson, 2010;Kim and Lee, 2011;Berry and Smith, 2012;Berry et al, 2013;Rosado and Holder, 2013;Helliker, 2014). On the other hand, the mechanisms of foliar uptake of water and solutes by plant surfaces are still not fully understood (Fernández and Eichert, 2009;Burkhardt and Hunsche, 2013), but they may play an important ecophysiological role (Limm et al, 2009;Johnstone and Dawson, 2010;Adamec, 2013;Berry et al, 2014).…”

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confidence: 99%

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

et al. 2014

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Plant trichomes play important protective functions and may have a major influence on leaf surface wettability. With the aim of gaining insight into trichome structure, composition, and function in relation to water-plant surface interactions, we analyzed the adaxial and abaxial leaf surface of holm oak (Quercus ilex) as a model. By measuring the leaf water potential 24 h after the deposition of water drops onto abaxial and adaxial surfaces, evidence for water penetration through the upper leaf side was gained in young and mature leaves. The structure and chemical composition of the abaxial (always present) and adaxial (occurring only in young leaves) trichomes were analyzed by various microscopic and analytical procedures. The adaxial surfaces were wettable and had a high degree of water drop adhesion in contrast to the highly unwettable and water-repellent abaxial holm oak leaf sides. The surface free energy and solubility parameter decreased with leaf age, with higher values determined for the adaxial sides. All holm oak leaf trichomes were covered with a cuticle. The abaxial trichomes were composed of 8% soluble waxes, 49% cutin, and 43% polysaccharides. For the adaxial side, it is concluded that trichomes and the scars after trichome shedding contribute to water uptake, while the abaxial leaf side is highly hydrophobic due to its high degree of pubescence and different trichome structure, composition, and density. Results are interpreted in terms of water-plant surface interactions, plant surface physical chemistry, and plant ecophysiology.

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“…Within California, redwoods inhabit a narrow strip of land from approximately 42 to 35.8 degrees N latitude and a zone fewer than 40 km from the ocean, a region known for its summer fog and winter rain (Noss 2000). Research on soil water and understory plants (Dawson 1998, Limm and Dawson 2010, Limm et al 2009) and trees (Ambrose et al 2009, Burgess and Dawson 2004, Ewing et al 2009, Ingraham and Matthews 1995, Limm et al 2009, Simonin et al 2009) has shown that fog water is taken up directly into plant leaves within fog-enshrouded coastal California forests.…”

Section: Introductionmentioning

confidence: 99%