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Morphogenesis

Morphogenesis

Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.

Meristems and Plant Growth

Meristems and Plant Growth

Plants grow throughout their lives; this is called indeterminate growth, and it distinguishes plants from most animals. Although certain parts of plants stop growing (e.g., leaves and flowers), others grow continuously—like roots and stems.

Plant Tissues

Plant Tissues

Plants are multicellular eukaryotes with tissue systems made of various cell types that carry out specific functions. Different tissues work together to perform a unique function and form an organ. Organs working together form organ systems. Vascular plants have two distinct organ systems: a shoot system and a root system. The shoot system consists of two portions: the vegetative (non-reproductive) parts of the plant, such as the leaves and the stems, and the reproductive parts of the plant,...

Seed Structure and Early Development of the Sporophyte

Seed Structure and Early Development of the Sporophyte

Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.

Water and Mineral Acquisition

Water and Mineral Acquisition

Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.

The Phragmoplast

The Phragmoplast

Cell division is essential for organismal growth and development. In animal cells, the central spindle and its associated proteins form the midbody, a structure that has an essential role in cytokinesis. In plants, the central spindle, along with the microtubules, actin, and other cell components, matures into the phragmoplast, which is necessary for cytokinesis. Unlike the stationary midbody, the phragmoplast expands centrifugally, eventually leading to the formation of the new cell wall.
The...

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Related Experiment Video

Updated: Jun 17, 2026

Robotic Sensing and Stimuli Provision for Guided Plant Growth

Robotic Sensing and Stimuli Provision for Guided Plant Growth

Published on: July 1, 2019

The mechanics behind plant development.

Olivier Hamant¹, Jan Traas

¹Laboratoire de Reproduction et Développement des Plantes, INRA, CNRS, ENS, Université de Lyon, Lyon Cedex 07, France. olivier.hamant@ens-lyon.fr

The New Phytologist

|December 17, 2009

Summary

This summary is machine-generated.

Plant morphogenesis integrates biochemical and mechanical signals. New tools enable re-examination of mechanical roles in growth patterns, particularly in the shoot apical meristem.

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Use of Atomic Force Microscopy to Measure Mechanical Properties and Turgor Pressure of Plant Cells and Plant Tissues

Use of Atomic Force Microscopy to Measure Mechanical Properties and Turgor Pressure of Plant Cells and Plant Tissues

Published on: July 15, 2019

Area of Science:

Plant Biology
Developmental Biology
Biophysics

Background:

Morphogenesis relies on integrating biochemical and mechanical signals.
Recent focus has been on biochemical signals, with mechanical contributions under-explored.
Advancements in tools allow for re-evaluation of mechanical influences on development.

Purpose of the Study:

To review the role of mechanical signals in plant morphogenesis.
To highlight multidisciplinary approaches for studying cellular processes in growing tissues.
To focus on the shoot apical meristem as a model system.

Main Methods:

Quantitative live imaging to measure cellular growth rate and direction.
Artificial modification of stress patterns to analyze impact on strain and cell behavior.
Computational modeling using continuum mechanics principles.

Main Results:

Plant shape is determined by local growth rate and direction at the cellular level.
Cell wall properties and turgor pressure influence growth variables.
Mechanical stress patterns directly impact tissue strain and cellular behavior.

Conclusions:

Mechanical signals are crucial for understanding plant morphogenesis.
Integrated approaches combining imaging, experimentation, and modeling are essential.
The shoot apical meristem provides a key system for studying these integrated processes.