The importance of maternal cells in controlling early embryogenesis is well understood in
animal development, yet in plants the precise role of maternal cells in embryogenesis is …

Ovules are the developmental precursors of seeds. In angiosperms the ovules are enclosed
within the central floral organs, the carpels. We have identified a homeotic mutation in …

The short integument (sin1) mutation causes a femalespecific infertility, and a defect in the
control of time to flowering in Arabidopsis. Female sterility of Sin − plants is due to abnormal …

In Arabidopsis thaliana, a mutation in the SIN 1 gene causes aberrant ovule development
and female-specific sterility. The effect of the sin 1 mutation is polymorphic and pleiotropic in …

The transcription start points (tsp) of seven genes of Anabaena 7120 were previously identified
by S1 nuclease protection and primer extension experiments using RNA extracted from …

The psbB gene from the cyanobacterium Anabaena 7120 was cloned and its nucleotide
sequence determined. This gene codes for the photosystem II chlorophyll-binding protein CP-47…

A plasmid vector containing a multiple-cloning site followed by a promoterless chloramphenicol
acetyltransferase (cat) gene, protected by transcription terminators and mobilizable by …

The ubiquity and importance of short duplex RNAs, termed microRNA (miRNA), for normal
development in higher eukaryotes are becoming increasingly clear. We had previously …

Background Long-term protection and herd immunity induced by existing pertussis vaccines
are imperfect, and a need therefore exists to develop new pertussis vaccines. This study …

Background : Frailty is associated with a prodromal stage called pre-frailty, a potentially
reversible and highly prevalent intermediate state before frailty becomes established. Despite …