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Meristems and Plant Growth

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Related Experiment Video

Updated: Sep 7, 2025

Combining Histochemical Staining and Image Analysis to Quantify Starch in the Ovary Primordia of Sweet Cherry during Winter Dormancy

Combining Histochemical Staining and Image Analysis to Quantify Starch in the Ovary Primordia of Sweet Cherry during Winter Dormancy

Published on: March 20, 2019

Winter dormancy in trees.

¹Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, SE-90183 Umeå, Sweden.

Current Biology : CB

|June 21, 2022

Summary

This summary is machine-generated.

Perennial trees adapt to seasonal changes by entering winter dormancy, a state of suspended growth protected by buds. This cycle of growth and dormancy is crucial for survival in temperate and boreal regions.

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Area of Science:

Plant biology
Ecology
Environmental science

Background:

Temperate and boreal regions experience extreme seasonal variations in temperature, light, and water.
Plants, particularly perennial trees, have evolved strategies to cope with these environmental shifts.
Winter dormancy is a key adaptation for trees, involving growth cessation and bud formation for protection.

Purpose of the Study:

To summarize current knowledge on environmental signals influencing the annual growth cycle in trees.
To review the genetic pathways and molecular mechanisms regulating tree growth and dormancy.
To explain the adaptive significance of winter dormancy in trees.

Main Methods:

Review of existing literature on tree physiology and environmental adaptation.
Analysis of the trade-offs between growing season length and winter survival.
Synthesis of information on environmental cues, genetic regulation, and molecular mechanisms.

Main Results:

Trees optimize growth through an annual cycle of active growth and winter dormancy.
Environmental signals like temperature and light duration trigger growth cessation and dormancy.
Bud formation and cold hardiness are critical components of winter dormancy in trees.

Conclusions:

Winter dormancy is an essential survival strategy for perennial trees in seasonal climates.
The timing of dormancy and bud flushing is finely tuned to environmental cues and varies with latitude and elevation.
Understanding the regulation of winter dormancy provides insights into plant adaptation and 'economy in biology'.