In flowering plants, pollen tubes undergo tip growth to deliver two nonmotile sperm to the
ovule where they fuse with an egg and central cell to achieve double fertilization. This …

In plants, copper (Cu) acts as essential cofactor of numerous proteins. While the definitive
number of these so-called cuproproteins is unknown, they perform central functions in plant …

Copper (Cu) is a cofactor in proteins that are involved in electron transfer reactions and is an
essential micronutrient for plants. Copper delivery is accomplished by the concerted action …

Sperm cells of flowering plants are non-motile and thus require transportation to the egg
apparatus via the pollen tube to execute double fertilization. During its journey, the pollen …

For more than 140 years, pollen tube guidance in flowering plants has been thought to be
mediated by chemoattractants derived from target ovules. However, there has been no …

In flowering plants, signaling between the male pollen tube and the synergid cells of the
female gametophyte is required for fertilization. In the Arabidopsis thaliana mutant feronia …

In a previous review of male gametophyte development (McCormick, 1993), it was noted that
the two areas posed by Mascarenhas (1975) as fruitful areas for future research were the …

The double fertilization process in angiosperms is based on the delivery of a pair of sperm
cells by the pollen tube (the male gametophyte), which elongates towards an embryo sac …

MicroRNAs (miRNAs) are a growing family of small noncoding RNAs that downregulate
gene expression in a sequence-specific manner. The identification of the entire set of …

Pollen tubes extend through pistil tissues and are guided to ovules where they release
sperm for fertilization. Although pollen tubes can germinate and elongate in a synthetic …