Abstract: An apoptosis inductor is formed of an anthocyanin-containing extract obtained from a potato containing anthocyanine in the skin and flesh thereof. The potato is a potato of cultivated species, such as Solanum tuberosum ssp. andigena L. and S. phureja Juz. et Buk., or of hybrid species based on the cultivated species.

Abstract: An apoptosis inductor is formed of an anthocyanin-containing extract obtained from a potato containing anthocyanine in the skin and flesh thereof. The potato is a potato of cultivated species, such as Solanum tuberosum ssp. andigena L. and S. phureja Juz. et Buk., or of hybrid species based on the cultivated species.

Abstract: A winter wheat-derived chitinase cDNA is provided which has a nucleotide sequence corresponding to an amino acid sequence listed as SEQ. ID. No.1 in FIG. 1. Another winter wheat-derived chitinase cDNA is provided which has a nucleotide sequence corresponding to an amino acid sequence listed as SEQ. ID. No.2 in FIG. 2. Further, a winter wheat-derived chitinase cDNA is provided which has a nucleotide sequence corresponding to an amino acid sequence listed as SEQ. ID. No.3 in FIG. 3. Moreover, a method is provided for isolating the above three kinds of chitinase cDNAs.

Abstract: A wheat-derived sucrose:fructan 6-fructosyltransferase cDNA is provided which is characterized in that said cDNA has a nucleotide sequence corresponding to an amino acid sequence listed as SEQ.ID. No. 1 in FIG. 1. A wheat-derived invertase cDNA is provided which is characterized in that said cDNA has a nucleotide sequence corresponding to an amino acid sequence listed as SEQ.ID. No. 2 in FIG. 2. A method is provided for isolating a wheat-derived sucrose:fructan 6-fructosyltransferase cDNA having a nucleotide sequence corresponding to an amino acid sequence listed as SEQ.ID. No.1 in FIG. 1 and a wheat-derived invertase cDNA having a nucleotide sequence corresponding to an amino acid sequence listed as SEQ.ID. No. 2 in FIG. 2.

Abstract: An apoptosis inductor is formed of an anthocyanin-containing extract obtained from a potato containing anthocyanine in the skin and flesh thereof. The potato is a potato of cultivated species, such as Solanum tuberosum ssp. andigena L. and S. phureja Juz. et Buk., or of hybrid species based on the cultivated species.

Abstract: A DNA sequence is provided, which encodes an enzyme that is the &agr;-subunit of the first isozyme of rice anthranilate synthase (ASA). Transformed plants having a high tryptophan content can be regenerated by culturing the plant cells having introduced therein such a recombinant vector which contains, at a position downstream of a promoter, an inserted DNA fragment carrying the above DNA sequence. In addition, methods of selecting transformed plant cells are disclosed, wherein plant cells transformed with the discloses DNA are resistant to inhibitory concentrations of tryptophan or tryptophan analogues.