The rice pyruvate decarboxylase 3 gene (PDC3), which has no introns, was previously postulated to be a pseudogene because no PDC3 mRNA had been detected, even under anaerobic conditions. However, in this study, it was found that rice PDC3 transcripts accumulated in panicles after heading. Within anthers obtained from the panicles, PDC3 was shown to be transcribed in mature pollen by in situ hybridization. These results suggest that the rice PDC3 is a functional gene. Its product may play a role in aerobic alcoholic fermentation in mature pollen.

以明晶等4个栽培品种及森林草莓、黄毛草莓和弗州草莓等3个野生种和类型为试材进行了该项研究。结果表明，用适宜剂量的激光和高压静电场处理父本野生草莓花粉可以克服草莓种间杂交不亲和性，显著提高座果率、杂种率和交配率，从而获得较多新的草莓种质资源。

植物在进化过程中形成了对环境信号反应的能力，光是植物生长发育中的一个重要的环境信号。植物为了更好地生长和发育形成了精密的光信号接收和转导系统。本文对近年来光信号的接收系统即光受体、光信号的转导研究进展进行了综述。

利用高压静电场在接种之前处理明晶和明磊2个草莓品种的花药，可有效提高花药愈伤组织的诱导率、分化率和分化芽丛数，增加易产生花药苗的颗粒致密型愈伤组织的比率。在该试验所设场强范围内，最佳场强为244.0kV/m。

We investigated the influence of low light intensity on the pigmentation of petals in potted lisianthus [Eustoma grandiflorum (Raf.) Shinn.]. When whole plants were placed under 1,000 lx, the petals at anthesis had lighter petal than control flowers exposed to 10,000 15,000 lx. Shading flower buds during the opening process had no effect on petal color intensity. However, shading the stem and leaf parts significantly reduced the intensity of petal color. When flower buds were detached with peduncles and placed in sucrose solutions, their petal color became more intense as the sucrose concentration was increased. There was a positive correlation between anthocyanin and soluble sugar content in the petals, regardless of light conditions. In detached flowers, the transcript levels of chalcone synthase, chalcone isomerase, and dihydroflavonol 4 reductase were enhanced as the sucrose concentration increased. These results suggest that low light intensity affects petal pigmentation through reduced photosynthesis in the leaves or stems, which, in turn, reduces the soluble sugar content of petals and leads to a repression of the genes that encode enzymes of anthocyanin biosynthetic pathway.