Influence of stomatal rings on movements of guard cells

Pautov, Anatoly; Bauer, Svetlana M.; Иванова, О. В.; Krylova, Elena M.; Yakovleva, O. V.; Sapach, Yulia; Pautova, Irina

doi:10.1007/s00468-019-01873-y

Cited by 12 publications

(2 citation statements)

References 44 publications

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“…Recently, other research has demonstrated that in C. ruber and B. spectabilis smaller stomata close faster, thus providing a strategy in case of environmental stressors [16,17]. Since it is known that stomata with different size, morphology and frequency present a changed opening/closing pattern, it follows that especially under high VPD, stomatal anatomy plays a central role in the acclimation to environmental changes and in regulating crop water use and water balance [6,18,19]. More specifically, increases in VPD reduce crop yield and productivity and this effect can be partially mediated by stomata acclimation, depending on their traits [20].…”

Section: Introductionmentioning

confidence: 99%

Reducing the Evaporative Demand Improves Photosynthesis and Water Use Efficiency of Indoor Cultivated Lettuce

et al. 2021

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Currently, climate change is affecting considerably the availability of freshwater for agriculture, increasing the need for the optimization of crop water use efficiency. Attempts to use VPD (vapor pressure deficit) modulation to reduce water consumption have been made. However, the effects of VPD on leaf stomatal and hydraulic traits, and on possible tradeoffs between photosynthetic carbon gain and transpiration, are rarely reported. We analyzed photosynthesis (gas-exchange, photochemistry) stomatal and hydraulic-related traits of green (G) and red (R) butterhead lettuce (Lactuca sativa L.) grown under low and high VPD (LV, HV) in a controlled environment. Our results showed that plants developed a higher number of small stomata under LV, allowing better regulation over opening/closing mechanisms and thus increasing net photosynthesis by 18%. LV plants also achieved better performance of the photosystem II and a more efficient water use (increments in ΦPSII and iWUE by 3% and 49%), resulting in enhanced plant growth and reduced need for irrigation. Significant differences between G and R plants were limited to a few traits, and the physiological response under the two VPDs did not show cultivar-specific response. We discuss the role of VPD management as necessary to maximize crop water use by harmonizing photosynthesis and transpiration.

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Section: Introductionmentioning

confidence: 99%

Reducing the Evaporative Demand Improves Photosynthesis and Water Use Efficiency of Indoor Cultivated Lettuce

et al. 2021

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“…More recent research showed that the involvement of these structures in limiting water loss is likely to be overestimated, but they did not completely rule it out (Brodribb & Hill 1997;Mohammadian et al 2007;Jordan et al 2008;Roth-Nebelsick et al 2009). It was suggested that they may not be associated with xeromorphosis (Becker et al 1986;Feild et al 1998;Riederer & Schreiber 2001;Mohammadian et al 2009;Pautov et al 2017;Pautov et al 2019). Regardless of the outcome of the discussion about the adaptive value of the aforementioned epidermal traits one would have to admit that they frequently occur in families with tracheid-based wood (Florin 1931;Stockey & Atkinson 1993;Stockey & Frevel 1997;Mill & Schilling 2009).…”

Section: Introductionmentioning

confidence: 99%

Water storage and transport in leaves of vesselless trees in the temperate rainforest of south-central Chile

Arbicheva

Pautov

Saldaña³

2021

Gayana Bot.

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According to a common hypothesis, some of the epidermal structural features in the leaves of tracheidbearing plants "offset" low specific conductivity of vesselless wood. The data concerning this issue is contradictory, which can be explained by the fact that leaf water relations depend not only on the epidermis structure, but also on the structure of other leaf tissues. In the current study we aimed to evaluate the diversity of water transport systems in the leaves of tracheid-bearing woody plants in the temperate rainforest of south-central Chile. For this purpose, we collected leaves of four Podocarpaceae and two Winteraceae species in natural habitats, examined their leaf anatomy using light and transmission electron microscopy, measured the quantitative characters and analyzed the data using principal component analysis. Leaves of the studied species differ in the mesophyll and xylem anatomy. Four species have features that accelerate water transport through the leaf tissues via the apoplast (Prumnopitys andina), accessory transfusion tissue (Podocarpus saligna) and a network of veins (Drimys species). On the contrary, the leaves of Saxegothaea conspicua and Podocarpus nubigena accumulate water in water-storage tissue (hydrenchyma), but their ecology suggest that hydrenchyma is not an adaptation to environmental conditions. The obtained data indicate the existence of different ways of water delivery to the photosynthetic tissue in the leaves of vesselless plants. In the case of insufficient water supply through the tracheids, hydrenchyma is likely to maintain hydration of the leaves.

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Leaf Epidermis in Rosaceae: Diversity of the Cuticular Folding and Microstructure

Kumachova

Бабоша

Ryabchenko

et al. 2021

Proc. Natl. Acad. Sci., India, Sect. B Biol. Sci.

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Influence of stomatal rings on movements of guard cells

Cited by 12 publications

References 44 publications

Reducing the Evaporative Demand Improves Photosynthesis and Water Use Efficiency of Indoor Cultivated Lettuce

Reducing the Evaporative Demand Improves Photosynthesis and Water Use Efficiency of Indoor Cultivated Lettuce

Water storage and transport in leaves of vesselless trees in the temperate rainforest of south-central Chile

Leaf Epidermis in Rosaceae: Diversity of the Cuticular Folding and Microstructure

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