Mangroves provide blue carbon ecological value at a low freshwater cost

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Oct. 21, 2022

Abstract “Blue carbon” wetland vegetation has a limited freshwater requirement. One type, mangroves, utilizes less during transpiration than adjacent terrestrial ecoregions, equating to only 43% (average) 57% (potential) of evapotranspiration ( $$ET$$ ET ). Here, we demonstrate that comparative consumptive water use by mangrove is as much 2905 kL H 2 O ha −1 year ecoregions with $${E}_{c}$$ E c -to- ratios 47–70%. Lower porewater salinity would, however, increase affecting leaf-, tree-, and stand-level eco-physiological controls on transpiration. Restricted also additive other ecosystem services provided such high carbon sequestration, coastal protection support biodiversity within estuarine marine environments. Low demand enables mangroves sustain ecological values connected ecosystems future reductions in while not competing the needs humans. Conservative may be characteristic emergent blue wetlands.

Language: Английский

---

Divergent leaf and fine root “pressure–volume relationships” across habitats with varying water availability

PLANT PHYSIOLOGY, Journal Year: 2022, Volume and Issue: 190(4), P. 2246 - 2259

Published: Sept. 1, 2022

Fine roots and leaves, the direct interfaces of plants with their external environment along soil-plant-atmosphere continuum, are at front line to ensure plant adaptation growing habitat. This study aimed compare vulnerability water deficit fine leaves woody species from karst mangrove forests-two water-stressed habitats-against that timber ornamental grown in a well-watered common garden. Thus, pressure-volume curves both organs 37 (about 12 each habitat) were constructed. wilted less negative potential than 32 before branch xylem lost 50% its hydraulic conductivity 17 available data on embolism resistance. turgor loss can act as fuse mechanism against stress. Mangroves had higher leaf resistance wilting lower leaf-specific area garden plants. Their high specific root lengths (SRL) capacitance buffer Karst bulk modulus, low capacitance, delayed wilting. showed general contribution protection whole underground Our findings highlight importance storage tolerance some species.

Language: Английский

---

Dynamics of mangrove functional traits under osmotic and oxidative stresses

Plant Growth Regulation, Journal Year: 2023, Volume and Issue: 101(2), P. 285 - 306

Published: July 1, 2023

Language: Английский

---

Effects of cold water and aridity on Baja California mangrove survival and ecophysiological traits

Journal of Ecology, Journal Year: 2024, Volume and Issue: 112(5), P. 985 - 997

Published: Jan. 27, 2024

Abstract Determining the factors that set species' range limits is of critical importance in an era rapid climate and biotic change. Mangroves dominate global tropical coastlines, but their subtropical are thought to be mainly constrained by cold air. However, several mangrove conspicuously warm, arid, dominated water countercurrents. Despite speculation combination aridity controls these limits, investigations this phenomenon rare. Here, we conducted experimental study examining separate interactive effects on survival, growth, ecophysiological traits three species from countercurrent limit Baja California, Mexico. It one few edges worldwide where red white mangroves ( Rhizophora mangle Laguncularia racemosa , respectively), not putatively stress‐tolerant black Avicennia germinans) most poleward distributed mangroves, providing further opportunity examine how affect species‐specific limits. Black were surprisingly intolerant regardless aridity, with no seedlings surviving lowest temperature (13°C) after 8 months. In contrast, both able survive at 13°C when humidity was 65% (but 40%). arid conditions, leaf stomatal conductance consistently for intermediate highest suggesting resistant transpiration loss conditions typical Baja. Similarly, exposed drought eight‐month experiment, grown survived longer than mangroves. Synthesis : Ultimately, our results suggest California reflects adaptations (or lack thereof) outperforming Further, difference compared same other ranges underscores need incorporate range‐specific conducting distribution modelling predict change organism

Language: Английский

---

Positive responses of strawberry (Fragaria × ananassa Duch.) explants to salicylic and iron nanoparticle application under salinity conditions

Plant Cell Tissue and Organ Culture (PCTOC), Journal Year: 2018, Volume and Issue: 134(2), P. 267 - 275

Published: May 21, 2018

Salicylic acid and iron nanoparticles application improved morphological growth-related characteristics of the strawberry plantlets′ under in vitro culture Positive responses to salinity stress. Strawberry explants cv. Queen Elisa were cultured conditions monitor salicylic (SA) (INs) response salinity. Three levels (0, 50, 100 mM NaCl), three (0.0, 0.08, 0.8 ppm), SA concentrations 0.01, 0.05 mM) applied. Salinity showed negative effects on growth parameters, pigment content, relative water content (RWC) membrane stability index (MSI), disturbed ionic exchange mature plants. The a positive compensating effect that somewhat reversed INs, as readily available alternative sulphate, have also shown impacts plants conditions. both INs all parameters increased RWC, MSI, potassium contents plants, decreased sodium highest concentration (0.8 ppm) for almost measured parameters. While no statistical difference was detectable between high (0.05 medium (0.01 conditions, non-stress significant Hence, if aim is produce or transplants using tissue culture, higher appropriate; but decreasing salinity, seem be effective.

Language: Английский

---