Which outcome in redwood trees results when high evaporative demand reduces water column pressure?

💡 Explanation

Increased transpiration creates more tension, and therefore xylem cavitation risk increases because this mechanical failure disrupts water transport based on the cohesion-tension mechanism. This occurs, rather than higher guttation or reversing phloem since negative pressure promotes cavitation.

• Which outcome of extreme heat occurs within non-irrigated plant xylem?
• Which mechanism do salmon use to locate freshwater spawning territories when river confluence landmarks disappear due to glacial dam collapse?
• Which risk increases when dynamic wing loading suddenly exceeds capacity?
• Which developmental outcome results when epidermal cells inappropriately express Dpp near imaginal discs?
• Which outcome occurs when a fish fills its swim bladder with CO₂ at depth?
• Which process is most directly suppressed once a hibernating bear enters a state of torpor?