What does exine mean?
The exine is a critical component of spores and pollen grains, providing protection and resistance to environmental stressors. It is a complex structure composed of various materials, including cellulose, sporopollenin, and other organic compounds. The exine plays a vital role in the reproduction and dispersal of plants, allowing them to adapt to changing environments and ensure the survival of their species. Understanding the exine is essential for researchers studying plant biology, ecology, and evolution.
nounThe outer layer of a spore or pollen grain, typically composed of a tough, resistant material.
- 1. The outer layer of a spore or pollen grain
"The exine of the pollen grain helped it to survive the harsh conditions of the environment."
"The exine of the pollen grain helped it to survive the harsh conditions of the environment."
"The study of exine morphology is crucial for understanding plant evolution and diversity."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of exine
The term exine is derived from the Latin word exine, which means 'outer layer'. This term was later adopted into Greek as exo- (outside) + -ine (suffix), reflecting the structure's location and composition.
Usage notes
The exine is a technical term used primarily in botany and plant biology. It is essential to understand the context and register when using this term to avoid confusion or misinterpretation.