Leaf mesophyll K+, H+ and Ca2+ fluxes are involved in drought-induced decrease in photosynthesis and stomatal closure in soybean

Mak, Michelle; Babla, Mohammad; Xu, Shengchun; O’Carrigan, Andrew; Liu, Xiaohui; Gong, Yaming; Holford, Paul; Chen, Zhong‐Hua

doi:10.1016/j.envexpbot.2013.10.003

Cited by 90 publications

(62 citation statements)

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“…Twelve stomatal traits were analysed as described by Liu et al [26], Mak et al [37] and O’Carrigan et al [36]. The parameters were aperture length (AL), aperture width (AW), aperture width/length (AWL), stomatal pore area (SA), guard cell length (GCL), guard cell width (GCW), guard cell volume (GCV), subsidiary cell length (SCL), subsidiary cell width (SCW), subsidiary cell volume (SCV), stomatal density (SD) and stomatal index (SI).…”

Section: Methodsmentioning

confidence: 99%

QTLs for stomatal and photosynthetic traits related to salinity tolerance in barley

et al. 2017

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BackgroundStomata regulate photosynthesis and transpiration, and these processes are critical for plant responses to abiotic stresses such as salinity. A barley double haploid population with 108 lines derived from a cross between CM72 (salt-tolerant) and Gairdner (salt-sensitive) was used to detect quantitative trait loci (QTLs) associated with stomatal and photosynthetic traits related to salinity tolerance.ResultsA total of 11 significant QTLs (LOD > 3.0) and 11 tentative QTLs (2.5 < LOD < 3.0) were identified. These QTLs are distributed on all the seven chromosomes, except 5H and explain 9.5–17.3% of the phenotypic variation. QTLs for biomass, intercellular CO2 concentration, transpiration rate and stomatal conductance under control conditions co-localised together. A QTL for biomass also co-located with one for transpiration rate under salinity stress. A linkage was found between stomatal pore area and gas exchange. A QTL for salinity tolerance also co-localised with QTLs for grain yield and biomass on chromosome 3H. Based on the draft barley genome, the candidate genes for salinity tolerance at this locus are proposed.ConclusionsThe lack of major QTLs for gas exchange and stomatal traits under control and saline conditions indicates a complex relationship between salinity and leaf gas exchange due to the fact that these complex quantitative traits are under the control of multiple genes.Electronic supplementary materialThe online version of this article (doi:10.1186/s12864-016-3380-0) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

QTLs for stomatal and photosynthetic traits related to salinity tolerance in barley

et al. 2017

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“…Thus, Rs may serves as physiological response trait for this species to reduce water loss under low water availability. Earlier findings explained the association of Rs with VDP and T as an adaptive mechanism to regulate stomatal opening and closure 26 , especially under water stress conditions 28 .…”

Section: Stomatal Resistancementioning

confidence: 99%

“…This regulation is influenced by T and VPD 26 . In turn, VPD depends on seasonal atmospheric conditions during the year 27 and plant stress status 28 . This is associated with an increase in stomatal resistance 24 .…”

Section: Air-to-leaf Temperature Difference and Vapour Pressure Deficitmentioning

confidence: 99%

“…The difference between leaf and outside air temperatures is highly responsive to the seasonal atmospheric weather variation 27 . It tends to induce stomatal closure under water stress conditions 28 . The aim is to reduce the evaporative water loss from the leaves during shortage of water.…”

Section: Specific Leaf Weightmentioning

confidence: 99%

“…VPD varies according to the season of the year, leading to seasonal variation in stomatal opening and closure 27 . It induces stomatal closure under drought stress conditions 28 . Specific leaf weight (SLW; leaf mass per unit area) plays an important role in the production and allocation of carbohydrates in plants 29 .…”

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Changes in Vapour Pressure Deficit and Air-To-Leaf Temperature Difference Due to the Effects of Watering Frequency and Seasonal Variation-Induced Adaptive Responses in <i>Balanites aegyptiaca</i> in Saudi Arabia

Elfeel

2017

Current Science

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This study examines intraspecific variability among three sources (KSA, SD5.1 and SD6.2) of Balanites aegyptiaca in Saudi Arabia in their response to different watering frequencies and seasonal changes in vapour pressure deficit (VPD) and air-to-leaf temperature difference (T) under field condition. Irrigation was done once a week, once every two weeks or once every three weeks. Traits measured include: tree height, diameter (DM), relative monthly height (RMHI) and diameter (RMDI) increments, stomatal resistance (Rs), specific leaf weight (SLW). VPD and T were measured during the same time of Rs and SLW measurements. Both Rs and SLW directly responded to irrigation treatment and seasonal variation in T and VPD. Interactive effects of hot weather and water stress increased leaf temperature, resulting in less T and more VPD that induced higher Rs and SLW values. SD5.1 accounted for better responses under water stress, due to its higher Rs and SLW in the same time maintained better growth. DM and RMDI were more responsive to watering stress and varied among the sources. Early seedlings root-toshoot ratio was associated with better growth performance later in the field. The results highlight the role of hot weather and water stress in producing large changes in T and VPD that have a major impact on Rs and SLW. In addition, there is large intraspecific variation in field growth and adaptive responses among seeds brought from different provenances.

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Higher ROS scavenging ability and plasma membrane H⁺‐ATPase activity are associated with potassium retention in drought tolerant tea plants

Zhang

Chen

et al. 2020

J. Plant Nutr. Soil Sci.

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Drought is one of the main limiting factors resulting in the reduction of yield and quality of tea production. Our previous studies indicated that K+ retention was a key factor associated with alleviating drought‐induced damage in tea plants. However, the underlying mechanisms are still unclear. In the present study, drought tolerant tea plant (variety Zhongcha108) exhibited higher plasma membrane (PM) H+‐ATPase activity and lower negative membrane potential compared with the drought sensitive tea plant (variety Ruanzhiwulong). In addition to superior mesophyll K+ retention ability and higher PM H+‐ATPase activity, the drought tolerant tea plant exhibited lower accumulation of reactive oxygen species (ROS) than the sensitive one. Moreover, exogenous supply of Na3VO4 (plasma membrane H+‐ATPase inhibitor) and H2O2 (mimicking apoplastic ROS) resulted in a significantly higher K+ efflux in the mesophyll of the drought sensitive tea plant than the non‐treated one. Taken together, the higher ROS scavenging ability and plasma membrane H+‐ATPase activity were major factors contributing to the higher K+ retention in drought tolerant tea plants.

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Leaf mesophyll K+, H+ and Ca2+ fluxes are involved in drought-induced decrease in photosynthesis and stomatal closure in soybean

Cited by 90 publications

References 51 publications

QTLs for stomatal and photosynthetic traits related to salinity tolerance in barley

QTLs for stomatal and photosynthetic traits related to salinity tolerance in barley

Changes in Vapour Pressure Deficit and Air-To-Leaf Temperature Difference Due to the Effects of Watering Frequency and Seasonal Variation-Induced Adaptive Responses in <i>Balanites aegyptiaca</i> in Saudi Arabia

Higher ROS scavenging ability and plasma membrane H⁺‐ATPase activity are associated with potassium retention in drought tolerant tea plants

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Leaf mesophyll K+, H+ and Ca2+ fluxes are involved in drought-induced decrease in photosynthesis and stomatal closure in soybean

Cited by 90 publications

References 51 publications

QTLs for stomatal and photosynthetic traits related to salinity tolerance in barley

QTLs for stomatal and photosynthetic traits related to salinity tolerance in barley

Changes in Vapour Pressure Deficit and Air-To-Leaf Temperature Difference Due to the Effects of Watering Frequency and Seasonal Variation-Induced Adaptive Responses in <i>Balanites aegyptiaca</i> in Saudi Arabia

Higher ROS scavenging ability and plasma membrane H+‐ATPase activity are associated with potassium retention in drought tolerant tea plants

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Higher ROS scavenging ability and plasma membrane H⁺‐ATPase activity are associated with potassium retention in drought tolerant tea plants