Research Highlights

Timing leaf growth<br /> 

Timing leaf growth

February 07, 2024
Leaf heteroblasty is the fascinating natural phenomenon by which plants produce different leaves as they grow and mature. This requires a complex interplay between cellular growth and time, and allows a single plant to manifest a diverse range of leaf shapes and sizes over its lifespan. In a recent paper in the journal Current Biology, scientists from the Max Planck Institute for Plant Breeding Research in Cologne have now shed light on how this intricate process occurs during leaf development of the small mustard plant Arabidopsis thaliana. By studying the development of juvenile and adult leaves, they identified key differences in their cellular growth patterns, which they found were controlled by a SPL9-CYCD3 transcriptional module. These findings provide us with a deeper understanding of how the passing of time is encoded into organ growth and morphogenesis, and demonstrate the intricate tempo of plant growth and development. [more]
A stiff polymer called lignin (stained red) is deposited in a precise pattern in the cell walls of exploding seed pods. Researchers identified three laccase enzymes required to form this lignin. No lignin forms in the cell wall when all three genes are knocked out by CRISPR/Cas9 gene editing
Researchers identify the genes controlling the mechanical structure of exploding seed pods [more]
Roots stiffen up to stop growth
The plant hormone cytokinin inhibits root cell growth [more]
Die Vielfalt der Blätter

Die Vielfalt der Blätter

January 11, 2021
Pflanzengenetiker ergründen die Entstehung der unterschiedlichen Blattformen auf der Erde [more]
Plant homeodomain proteins promote synthesis of the hormone auxin to help leaves grow wide
Recent findings presented by Dr. Zhongjuan Zhang, Dr. Miltos Tsiantis and their colleagues offer important advances in our understanding of morphological diversity using plant leaves as an example [more]
Self-restrained genes enable evolutionary novelty
Evolution can promote novelty by keeping gene expression in check [more]
New leaf shapes for thale cress
Max Planck researchers equip the plant with pinnate leaves [more]
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