Differences in osmotic adjustment, foliar abscisic acid dynamics, and stomatal regulation between an isohydric and anisohydric woody angiosperm during drought

• Published in: Plant, cell and environment Vol. 40; no. 12; pp. 3122 - 3134
• Main Authors: Nolan, Rachael H., Tarin, Tonantzin, Santini, Nadia S., McAdam, Scott A.M., Ruman, Rizwana, Eamus, Derek
• Format: Journal Article
• Language: English
• Published: United States Wiley Subscription Services, Inc 01.12.2017
• Subjects: ABA; Abscisic acid; Abscisic Acid - metabolism; Acacia; Acacia - physiology; belowground biomass; Biomass; Carbohydrates; Conductance; Desiccation; Drought; drought avoidant; drought tolerant; Droughts; dry matter partitioning; Drying; Dynamics; Embolism; Environment; Eucalyptus; Eucalyptus - physiology; Eucalyptus camaldulensis; Exposure; Gymnospermae; Gymnosperms; leaf shedding; Leaves; Magnoliopsida - growth & development; Magnoliopsida - physiology; Osmosis; Plant Leaves - growth & development; Plant Leaves - physiology; Plant Stomata - physiology; Plant Transpiration - physiology; Plants (botany); Plastic properties; Plasticity; Resistance; root shoot ratio; sapwood; Seeds - growth & development; Seeds - physiology; Species; Species classification; Stomata; Stomatal conductance; stomatal movement; storage carbohydrates; Turgor; turgor loss point; Water - physiology; Water potential; Water relations; Xylem; ABA; turgor loss point; water relations; drought tolerant; drought avoidant; storage carbohydrates; leaf shedding

Species are often classified along a continuum from isohydric to anisohydric, with isohydric species exhibiting tighter regulation of leaf water potential through stomatal closure in response to drought. We investigated plasticity in stomatal regulation in an isohydric (Eucalyptus camaldulensis) and...