A rice homeobox gene, OSH1, is expressed before organ differentiation in a specific region during early embryogenesis.

Homeobox genes encode a large family of homeodomain proteins that play a key role in the pattern formation of animal embryos. By analogy, homeobox genes in plants are thought to mediate important processes in their embryogenesis, but there is very little evidence to support this notion. Here we described the temporal and spatial expression patterns of a rice homeobox gene, OSH1, during rice embryogenesis. In situ hybridization analysis revealed that in the wild-type embryo, OSH1 was first expressed at the globular stage, much earlier than organogenesis started, in a ventral region where shoot apical meristem and epiblast would later develop. This localized expression of OSH1 indicates that the cellular differentiation has already occurred at this stage. At later stages after organogenesis had initiated, OSH1 expression was observed in shoot apical meristem [except in the L1 (tunica) layer], epiblast, radicle, and their intervening tissues in descending strength of expression level with embryonic maturation. We also performed in situ hybridization analysis with a rice organless embryo mutant, orl1, that develops no embryonic organs. In the orl1 embryo, the expression pattern of OSH1 was the same as that in the wild-type embryo in spite of the lack of embryonic organs. This shows that OSH1 is not directly associated with organ differentiation, but may be related to a regulatory process before or independent of the organ determination. The results described here strongly suggest that, like animal homeobox genes, OSH1 plays an important role in regionalization of cell identity during early embryogenesis.

Énekszó : dalok népi versekre, op. 1 = Songs on Hungarian popular words /

16 songs based on folk texts.

Drei biblische Scenen : [Klavierauszug mit Text] /

Publisher's no: Edition Breitkopf Nr. 1634.

The Boston musical education society's collection of church music : consisting of original psalm and hymn tunes, select pieces, chants, &c., including compositions adapted to the service of the Protestant Episcopal Church /

Two voice parts with keyboard accompaniment.

A group of songs.

Mode of access: Internet.

Motettenm Kirchenmusik für Chor mit Orgelbegleitung und für Chor a capella.

Words in German or Latin. Selections 5, 6, 7 in Latin with German translations; Selection 12, English with German translation.

Agnus Dei : a deux voix (soprano et baryton) /

Biographical notes in French, English and German.

La grande litanie : pour voix seule (ténor ou soprano, ou les deux alternant), avec choeur à 2, 3 ou 4 voix mixtes et orgue ou 5 voix mixtes avec ou sans orgue /

At end: 1917.

Songs and airs /

"The pianoforte accompaniments have in every case been arranged direct from Handel's full score."

The songs of England : a collection of 200 English melodies, including the most popular traditional ditties, and the principal songs and ballads of the last three centuries /

Each volume contains 100 songs with piano acc.

Lazarus : Kirchliches Oratorium für Solostimmen, Chor- u. Gemeindegesang mit Orgelbegleitung.

German words.

Collected songs of Leopold Damrosch /

Contains op. 5-8, 10-11, 13-14, 16-17, and three songs without opus no.

Songs of two savoyards /

"All numbers which in their original form were choruses or concerted pieces have been arranged for a single voice and the accompaniments adapted accordingly ... by C. King Hall."

Neue Lieder und Duette : (New songs and duets) /

Mode of access: Internet.

Specimen copies of choice songs and ballads

Mode of access: Internet.