Foliar water uptake improves branch water potential and photosynthetic capacity in Calligonum mongolicum

Li, Zhou-Kang; Gong, Xue‐Wei; Wang, Jinlong; Chen, Yudong; Liu, Feiyi; Li, Han-Peng; Lü, Guang-Hui

doi:10.1016/j.ecolind.2022.109825

Cited by 5 publications

(6 citation statements)

References 51 publications

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“…The effect of wetting on plant Ψ Pre is more significant than for Ψ Mid [10,52], and our results confirm this. Humidification significantly increased the predawn water potential of P. euphratica leaves during the Mid period, minimizing the risk of water stress caused by scarce precipitation during this period [10]. Boanares et al [43] found that there is a relationship between leaf water uptake and plant response to wetting.…”

Section: Response Of Leaf Ecophysiology To Wettingsupporting

confidence: 85%

“…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. Humidification significantly increased the predawn water potential of P. euphratica leaves during the Mid period, minimizing the risk of water stress caused by scarce precipitation during this period [10].…”

Section: Response Of Leaf Ecophysiology To Wettingsupporting

confidence: 85%

“…This theory redefines the leaf water absorption process and links plant leaf water absorption with the gas exchange process. Our previous studies showed that humidification significantly increased the water status of the assimilating branches of Calligonum mongolicum and effectively improved the photosynthetic capacity [10]. However, in other previous studies, it was found that leaf wetting was not beneficial to plant photosynthesis, which inhibited stomatal opening and reduced the carbon assimilation rate [30] or affected the carboxylation of Rubisco [31].…”

Section: Introductionmentioning

confidence: 93%

“…The potential relative importance of FWU to alleviate drought stress at leaf level (PRI; %) is PRI = LWC A × FWU max (10) The actual relative importance of FWU to alleviate drought stress (ARI; %•MPa −1 ) is…”

Section: Leaf Water Absorption Experimentsmentioning

confidence: 99%

“…It can be said that leaf water absorption is a common phenomenon in most terrestrial plants, because this phenomenon is observed in more than 85% of studied species [1,4]. As a complementary water source, although plant leaves absorb less water, this phenomenon still increases leaf water potential [5,6], promotes plant growth [7,8] and improves photosynthetic capacity [9,10].…”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Response Of Leaf Ecophysiology To Wettingsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 93%

Section: Leaf Water Absorption Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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 and its influencing factors differ between female and male Populus euphratica

Chen

Wang

et al. 2023

Environmental and Experimental Botany

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Effects of Leaf Hydrophilicity and Stomatal Regulation on Foliar Water Uptake Capacity of Desert Plants

Wang

Yang

2023

Forests

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Foliar water uptake (FWU) is one of the primary water sources for desert plants. Desert plants’ water uptake capacity is essential in maintaining the balance of carbon and water. However, there are few studies on FWU capacity in desert plants and the physiological and ecological characteristics that lead to differences in FWU capacity. In order to clarify FWU strategies and the influencing factors of plants in desert ecosystems, this study measured the contact angle, FWU parameters, and hydraulic parameters to explore six desert plants’ FWU capacity and the effects of leaf wettability and hydraulic parameters on FWU capacity. The results showed that all six plants had FWU capacity, among which the leaves of Nitraria sibirica Pall. and Halimodendron halodendron (Pall.) Voss had a high foliar water uptake rate (k) and high foliar water uptake accumulation (FWU storage), and the leaves of Glycyrrhiza uralensis Fisch. had a high k and low FWU storage. The leaves of Populus euphratica Oliv., Apocynum hendersonii Hook. f., and Alhagi sparsifolia Shap. had a low k and low FWU storage. Additionally, FWU capacity was mainly affected by stomatal regulation compared with leaf wettability and leaf structure. The results of this study will help to improve the understanding of the physiological and ecological adaptability of desert plants.

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Foliar water uptake improves branch water potential and photosynthetic capacity in Calligonum mongolicum

Cited by 5 publications

References 51 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

Foliar water uptake and its influencing factors differ between female and male Populus euphratica

Effects of Leaf Hydrophilicity and Stomatal Regulation on Foliar Water Uptake Capacity of Desert Plants

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