High potential for foliar water uptake in early stages of leaf development of three woody angiosperms

Losso, Adriano; Dämon, Birgit; Hacke, Uwe G.; Mayr, Stefan

doi:10.1111/ppl.13961

Cited by 3 publications

(2 citation statements)

References 64 publications

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“…Studies have shown that FWU improves plant water status [5,[48][49][50][51]. The effect of wetting on plant Ψ Pre is more significant than for Ψ Mid [10,52], and our results confirm this.…”

Section: Response Of Leaf Ecophysiology To Wettingsupporting

confidence: 85%

Foliar Water Uptake and Its Relationship with Photosynthetic Capacity and Anatomical Structure between Female and Male Populus euphratica at Different Growth Stages

Chen

Wang

et al. 2023

Forests

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Foliar water uptake (FWU) is considered to be a common phenomenon in most terrestrial plants. As a supplementary water source, it plays an important role in the growth and survival of plants in arid areas. However, there is no research to explain the water absorption of plant leaves from the perspective of gender specificity. To this end, we carried out a leaf water absorption capacity experiment and in situ wetting field experiment, respectively, in the early (Initial), middle (Mid) and end (End) of the growth season of male and female Populus euphratica. The results of the leaf water absorption capacity experiment showed that the FWU capacity of male and female P. euphratica showed an increasing trend with the growth period and reached the maximum at the End period. The FWU capacity of female P. euphratica was significantly greater than that of male P. euphratica after the Initial stage. The water absorption speed (k) of male and female leaves also increased with the growth period, but the increase was not significant. The increase in leaf water content per mg of water absorbed per unit of leaf area (LWCA) of male P. euphratica was always greater than that of female P. euphratica. Specific leaf area (SLA), leaf water saturated deficit (WSD) and water absorption parameters (FWU capacity, k) were significantly correlated. The results of the in situ wetting field experiment show that humidification significantly increased the predawn water potential (Mid period) of female and male P. euphratica leaves and the net photosynthetic rate (Mid period) of male P. euphratica leaves, but had no significant effect on chlorophyll fluorescence parameters and anatomical structure. The MFA results show that the water status of male and female P. euphratica leaves was significantly correlated with photosynthetic parameters, fluorescence parameters and anatomical parameters. Our results show that the foliar water uptake capacity of female P. euphratica leaves was stronger than that of male P. euphratica and shows significant dynamic changes during the growing season. This was because female P. euphratica has a developed water storage structure. Foliar water uptake can effectively improve the water status and photosynthetic capacity of male and female P. euphratica, and this improvement was more significant during the most intense period of soil water stress. These findings will deepen our understanding of the ecological adaptation of dioecious plants to foliar water uptake.

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Section: Response Of Leaf Ecophysiology To Wettingsupporting

confidence: 85%

Foliar Water Uptake and Its Relationship with Photosynthetic Capacity and Anatomical Structure between Female and Male Populus euphratica at Different Growth Stages

Chen

Wang

et al. 2023

Forests

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“…It could be seen that the contact angle of the senescent leaves was significantly reduced (Sun et al, 2014). Looking closely at the surface microstructure, the hierarchical structure on the surface of senescent leaves was no longer evident and the distributed wax tubes almost disappeared (Gou and Guo, 2019;Losso et al, 2023). Similarly over time, the green rape leaves shrunk and curled, the contact angle gradually decreased, and finally the wettability gradually transitioned from hydrophobic to hydrophilic (Zhu and Guo, 2016).…”

Section: Growth Agementioning

confidence: 99%

Factors influencing wettability and surface/interface mechanics of plant surfaces: a review

Tie,

Gao,

Huang

et al. 2023

Front. Mater.

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A wide variety of abundant plant leaves exist in nature, and the wettability of their surfaces is formed to adapt to diverse external environments. In this paper we will focus on the factors influencing the wettability of various plant leaves prevalent in nature. And we hope to investigate the interfacial problems of plants from a mechanical point of view. It is found that there are many factors affecting the surface wettability of leaves, such as chemical composition, surface microstructures, hierarchical structures, and growth age. Different influencing factors have different contributions to the change of surface wettability. The surface wax composition influences the surface wettability from a chemical point of view while the hierarchical structure consisting of nanostructures and micron structures also influences the wettability from a structural point of view. Also as the growth age of the plant increases, there is a combined effect on the chemical composition and microstructure of the leaves. Then we discuss the surface/interface mechanics of droplets on various plant leaves and analyze the wetting properties of droplets on different substrates. Finally, we hope that the surface/interface mechanics of plant leaves may be systematically utilized in the future for the preparation of multifunctional biomimetic materials, realizing the crossover of chemistry, biology, mechanics, and other materials science fields.

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Foliar water uptake and phyllosphere microbe colonization increase under higher soil nitrogen availability

Palmeri,

Arias,

Parra

et al. 2024

Front. Plant Physiol.

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Leaf water uptake (FWU) represents an alternative pathway to plant water acquisition that can have positive effects on water and carbon balance. Leaf surface traits including the phyllosphere microbes can affect the leaf wetness capacity and FWU. These functional and structural leaf traits could change depending on soil resources availability. The aim of this study was to evaluate the responses of FWU and leaf surface traits such as contact angle, water drop adhesion (LWA) and phyllosphere-associated microbiota to soil nitrogen addition. Three dominant plant species, Azorella prolifera, Senecio filaginoides, and Papostippa speciosa, of an arid steppe in Patagonia exposed to nitrogen (+N) and nitrogen plus water (+NW) addition for ten years were selected. Leaf contact angle did not exhibit statistical differences among treatments within species. LWA was higher in all treatments with respect to the control (C) for shrub A. prolifera and grass P. speciosa. Nitrogen addition increased significantly FWU in A. prolifera and in P. speciosa with respect to C. Colony-forming units of culturable microorganisms (CFU) on leaf surface responded to N addition, but the changes were statistically significant in S. filaginoides and P. speciosa in +NW, increasing three and eight times, respectively, in relation to the C. A positive linear relationship was found between FWU and LWA across species and treatments. On the other hand, CFU of phyllosphere was negative and exponentially correlated with LWA and FWU, across species and treatments. The results suggest that soil N enrichment could affect functional leaf traits and phyllosphere microbiota in a way that may confer a higher potential to cope with drought by facilitating the use of alternative water sources. On the other hand, we suggested that species with leaves more colonized have less surface exposed for FWU and could have lower wettability depending on the hydrophobicity degree of microbes. However, a higher cover of epiphyte’s microorganisms could compensate the effects of lower FWU by avoiding the leaf dehydration. This study contributes to a better understanding of plant leaf-microbe interactions under higher N atmospheric deposition and intensive fertilization as global agricultural production is expected to increase.

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High potential for foliar water uptake in early stages of leaf development of three woody angiosperms

Cited by 3 publications

References 64 publications

Foliar Water Uptake and Its Relationship with Photosynthetic Capacity and Anatomical Structure between Female and Male Populus euphratica at Different Growth Stages

Foliar Water Uptake and Its Relationship with Photosynthetic Capacity and Anatomical Structure between Female and Male Populus euphratica at Different Growth Stages

Factors influencing wettability and surface/interface mechanics of plant surfaces: a review

Foliar water uptake and phyllosphere microbe colonization increase under higher soil nitrogen availability

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