This study investigated ovule and anther structure of the `Trevatt Blue' variety of apricot (Prunus armeniaca) using bright field microscopy following reports of low fruit set. Ovules and anthers from fertile `Moorpark' and `Trevatt Knight' flowers were compared with those of the `Trevatt Blue'. In the `Moorpark' and `Trevatt Knight' ovules, all reproductive structures were present including em...

We provide evidence on the localization, synthesis, transport, and effects of auxin on the processes occurring late in Arabidopsis thaliana stamen development: anther dehiscence, pollen maturation, and preanthesis filament elongation. Expression of auxin-sensitive reporter constructs suggests that auxin effects begin in anthers between the end of meiosis and the bilocular stage in the somatic t...

To ensure fertility, complex somatic and germinal cell proliferation and differentiation programs must be executed in flowers. Loss-of-function of the maize multiple archesporial cells 1 (mac1) gene increases the meiotically competent population and ablates specification of somatic wall layers in anthers. We report the cloning of mac1, which is the ortholog of rice TDL1A. Contrary to prior stud...

Tulipa, Liliaceae, Hydroxycinnamic Acid Conjugates, Ferulic Acid Esters, Sucrose Two ferulic acid conjugates have been isolated from the extract of immature anthers of Tulipa cv. “Apeldoorn” and their structures elucidated using chromatography, electron impact mass spectrometry, and NMR spectroscopy. These two conjugates are 6,3'-diferuloylsucrose and 6,3',4'triferuloylsucrose. High performance...

Honglian (HL) cytoplasmic male sterility (CMS) is one of the rice CMS types and has been widely used in hybrid rice production in China. The CMS line (Yuetai A, YTA) has a Yuetai B (maintainer line, YTB) nuclear genome, but has a rearranged mitochondrial (mt) genome consisting of Yuetai B. The fertility of hybrid (HL-6) was restored by restorer gene in nuclear genome of restorer line (9311). We...

Phenotyping wheat (Triticum aestivum L.) is time-consuming and new methods are necessary to decrease labor. To develop a heterotic pool of male lines for hybrid breeding, there must be an efficient way measure both anther extrusion the size anthers. Five hundred ninety-four soft red winter in two replications randomized complete block design were phenotyped extrusion, key trait production. A de...