During phytochrome-mediated leaflet closure, the apoplastic pH of the dorsal motor cells (the cells that swell during leaflet closure) decreases, while the apoplastic pH of the ventral motor cells (the cells that shrink during leaflet closure) increases. 

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#Id: 989

#Unit 5. Developmental Biology

First zygotic genes is Gap genes. Mutations in them cause gaps in the segmentation pattern.

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#Id: 990

#Unit 5. Developmental Biology

Gurken protein is a member of the EGF (epidermal growth factor) family, and Torpedo encodes a homologue of the vertebrate EGF receptor.

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#Id: 991

#Unit 5. Developmental Biology

An anterior-to-posterior gradient of Bicoid protein.

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#Id: 992

#Unit 5. Developmental Biology

Bicoid act as the anterior morphogen.

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#Id: 993

#Unit 5. Developmental Biology

An anterior-to-posterior gradient of Hunchback protein.

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#Id: 994

#Unit 5. Developmental Biology

A posterior-to-anterior gradient of Nanos protein.