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New Tissue Discovery Boosts Seed Size by 16.5%

11/29/2025

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Summary

Story summary

Nagoya University researchers, led by Dr. Ryushiro Kasahara, discovered a new seed-forming tissue named the Kasahara Gateway.
The Kasahara Gateway switches between open and closed states to limit nutrient uptake to fertilized seeds.
Genetic analysis identified the AtBG_ppap gene.
Overexpression of AtBG_ppap increased seed size by up to 16.5%.
The study is published in Current Biology.

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Story summary

Nagoya University researchers, led by Dr. Ryushiro Kasahara, discovered a new seed-forming tissue named the Kasahara Gateway.
The Kasahara Gateway switches between open and closed states to limit nutrient uptake to fertilized seeds.
Genetic analysis identified the AtBG_ppap gene.
Overexpression of AtBG_ppap increased seed size by up to 16.5%.
The study is published in Current Biology.