Drivers of nocturnal stomatal conductance in C3 and C4 plants

Chowdhury, Faqrul Islam; Arteaga, Carles; Alam, Mohammed Shafiul; Alam, Iftakharul; Dios, Víctor Resco de

doi:10.1016/j.scitotenv.2021.151952

Cited by 14 publications

(19 citation statements)

References 94 publications

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“…The lack of a strong g sn response to drought (Figure 2b) clearly indicates that soil moisture is not the key factor limiting g sn . In general, g sn decreases with lower soil water potential (Chowdhury et al, 2021), but also exhibits high heterogeneity, even within the same species and treatment, see Figure 3a in Wang et al (2021); this is consistent with the findings of this study (Figure 2b). To date, g sn responses to DS were divergent (Chowdhury et al, 2021; Wang et al, 2021; Yu et al, 2019; Zeppel et al, 2014).…”

Section: Discussionsupporting

confidence: 90%

“…In general, g sn decreases with lower soil water potential (Chowdhury et al, 2021), but also exhibits high heterogeneity, even within the same species and treatment, see Figure 3a in Wang et al (2021); this is consistent with the findings of this study (Figure 2b). To date, g sn responses to DS were divergent (Chowdhury et al, 2021; Wang et al, 2021; Yu et al, 2019; Zeppel et al, 2014). A recent meta‐analysis also reported that g sn exhibits variable responses to environmental drivers such as drought, see Figure 2 in Chowdhury et al (2021).…”

Section: Discussionsupporting

confidence: 90%

“…To date, g sn responses to DS were divergent (Chowdhury et al, 2021; Wang et al, 2021; Yu et al, 2019; Zeppel et al, 2014). A recent meta‐analysis also reported that g sn exhibits variable responses to environmental drivers such as drought, see Figure 2 in Chowdhury et al (2021). Notably, we observed high g sn / g sd ratios even under DS (Figure 2d), which were identical to those of the control treatment.…”

Section: Discussionmentioning

confidence: 99%

“…The mean g sn / g sd ratio (~11%) observed under saturated water conditions indicates that partial nocturnal stomatal closure in rice is a plausible strategy for conserving soil moisture. Until now, g sn responses to different environmental conditions, such as soil water content, were divergent even within the same plant species (Chowdhury et al, 2021; Wang et al, 2021; Yu et al, 2019). Some studies have shown that g sn enhances nutrient uptake via sap flow; however, the evidence is also inconsistent (Kupper et al, 2012; Lewis et al, 2011; Resco de Dios et al, 2019; Rohula et al, 2014; Scholz et al, 2007; Zeppel et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Dark respiration explains nocturnal stomatal conductance in rice regardless of drought and nutrient stress

Yan,

Ryu,

Dechant

et al. 2023

Plant Cell & Environment

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The ecological mechanism underlying nocturnal stomatal conductance (gsn) in C3 and C4 plants remains elusive. In this study, we proposed a ‘coordinated leaf trait’ hypothesis to explain gsn in rice plants. We conducted an open‐field experiment by applying drought, nutrient stress and the combined drought–nutrient stress. We found that gsn was neither strongly reduced by drought nor consistently increased by nutrient stress. With the aforementioned multiple abiotic stressors considered as random effects, gsn exhibited a strong positive correlation with dark respiration (Rn). Notably, gsn primed early morning (5:00–7:00) photosynthesis through faster stomatal response time. This photosynthesis priming effect diminished after mid‐morning (9:00). Leaves were cooled by gsn‐derived transpiration. However, our results clearly suggest that evaporative cooling did not reduce dark respiration cost. Our results indicate that gsn is more closely related to carbon respiration and assimilation than water and nutrient availability, and that dark respiration can explain considerable variation of gsn.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dark respiration explains nocturnal stomatal conductance in rice regardless of drought and nutrient stress

Yan,

Ryu,

Dechant

et al. 2023

Plant Cell & Environment

View full text Add to dashboard Cite

show abstract

“…The central component of this network is the stomatal movements. An increasing number of studies have demonstrated that the endogenous circadian oscillator modulates the circadian rhythm of stomatal movement [ 30 , 68 , 69 ] and modulates the responses of stomatal guard cells to environmental cues [ 70 , 71 ]. Calcium (Ca + ) signaling is one of the primary regulators of the osmotic stress response [ 11 , 72 ].…”

Section: Circadian Clock Enhances Fitness By Controlling Wue Through ...mentioning

confidence: 99%

Regulatory Role of Circadian Clocks on ABA Production and Signaling, Stomatal Responses, and Water-Use Efficiency under Water-Deficit Conditions

Kamrani

Shomali

Aliniaeifard

et al. 2022

Cells

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Plants deploy molecular, physiological, and anatomical adaptations to cope with long-term water-deficit exposure, and some of these processes are controlled by circadian clocks. Circadian clocks are endogenous timekeepers that autonomously modulate biological systems over the course of the day–night cycle. Plants’ responses to water deficiency vary with the time of the day. Opening and closing of stomata, which control water loss from plants, have diurnal responses based on the humidity level in the rhizosphere and the air surrounding the leaves. Abscisic acid (ABA), the main phytohormone modulating the stomatal response to water availability, is regulated by circadian clocks. The molecular mechanism of the plant’s circadian clock for regulating stress responses is composed not only of transcriptional but also posttranscriptional regulatory networks. Despite the importance of regulatory impact of circadian clock systems on ABA production and signaling, which is reflected in stomatal responses and as a consequence influences the drought tolerance response of the plants, the interrelationship between circadian clock, ABA homeostasis, and signaling and water-deficit responses has to date not been clearly described. In this review, we hypothesized that the circadian clock through ABA directs plants to modulate their responses and feedback mechanisms to ensure survival and to enhance their fitness under drought conditions. Different regulatory pathways and challenges in circadian-based rhythms and the possible adaptive advantage through them are also discussed.

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Night-time water relations and gas exchange in cut shoots of five boreal dwarf shrub species: impact of soil water availability

Kupper,

Tullus,

Rohula-Okunev

2023

Physiol Mol Biol Plants

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Drivers of nocturnal stomatal conductance in C3 and C4 plants

Cited by 14 publications

References 94 publications

Dark respiration explains nocturnal stomatal conductance in rice regardless of drought and nutrient stress

Dark respiration explains nocturnal stomatal conductance in rice regardless of drought and nutrient stress

Regulatory Role of Circadian Clocks on ABA Production and Signaling, Stomatal Responses, and Water-Use Efficiency under Water-Deficit Conditions

Night-time water relations and gas exchange in cut shoots of five boreal dwarf shrub species: impact of soil water availability

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