这篇研究揭示了植物通过监测乙烯（ethylene）和氧气（O2）的扩散来感知外层屏障（如周皮periderm）完整性的创新机制。通过拟南芥（Arabidopsis）模型，作者发现伤口导致乙烯外泄和氧气内流，分别抑制乙烯信号通路（EIN2依赖）和低氧响应（PCO介导），从而触发周皮再生。这一机制在根和茎中均存在 ...

Wound periderm formation was induced by carefully removing native periderm from freshly harvested tubers before storage. The chemical composition of lipids (waxes) obtained by chloroform extraction, ...

Tova Arzee, Ehud Arbel, Lila Cohen, Ontogeny of Periderm and Phellogen Activity in Ceratonia siliqua L., Botanical Gazette, Vol. 138, No. 3 (Sep., 1977), pp. 329-333 ...

When the periderm is wounded ethylene escapes and oxygen enters through the injury site. These changes act as warning signals that trigger the plant to begin regenerating the periderm.

The periderm atlas also yielded important insights into other non-phellem cells. This data will help clarify the transitional stages in periderm development, like how phellogen cells give rise to ...

The research team led by Professor Ari Pekka Mähönen from the Faculty of Biological and Environmental Sciences found that an intact periderm is nearly impermeable to gases, causing ethylene gas, a ...

The periderm atlas also yielded important insights into other non-phellem cells. This data will help clarify the transitional stages in periderm development, like how phellogen cells give rise to ...

In fleshy fruits, periderm tissue often forms on the skin surface as a response to mechanical damage caused following environmental cues or developmental programs, known as lignosuberization ...

In fleshy fruits, periderm tissue often forms on the skin surface as a response to mechanical damage caused following environmental cues or developmental programs, known as lignosuberization ...

Science News:Question CornerChennai, 01-04-2010: For City: Drumstick flower. Photo: M_Karunakaran ...