Abstract: Methods for fostering somatic embryogenic competence of a plant cell or tissue by contacting the plant cell or tissue with an arabinogalactan protein (AGP) composition effective for fostering somatic embryogenic competence in plant species and varieties that are recalcitrant to somatic embryogenesis and/or regeneration are provided. AGP compositions useful for fostering somatic embryogenic competence are provided, including total AGP and an AGP RP-HPLC hydrophobic fraction, both from embryogenic callus, from plant varieties including cotton lines Coker 315, Siokra 1-4, and Sicala 40, including at concentrations ranging from about 0.0008 mg/L to about 100 mg/L. Methods for regenerating plants, producing transformed plants, and impeding somatic embryogenic competence are also provided. Plant culture media and methods for making useful AGP compositions and media are also provided. Amino acid and nucleotide sequences for peptides and proteins eluting in hydrophobic AGP fractions are also provided.

Abstract: The present invention relates generally to proteinase inhibitors, a precursor thereof and to genetic sequences encoding same. More particularly, the present invention relates to isolated monomers of a type II serine proteinase inhibitor.

Abstract: The present invention relates generally to proteinase inhibitors, a precursor thereof and to genetic sequences encoding same. More particularly, the present invention relates to a nucleic acid molecule comprising a sequence of nucleotides which encodes or is complementary to a sequence which encodes a type II serine proteinase inhibitor (PI) precursor from a plant wherein the precursor comprises at least three PI monomers and wherein at least one of the monomers has a chymotrypsin specific site and at least one other of the monomers has a trypsin specific site.

Abstract: The present invention relates generally to proteinase inhibitors, a precursor thereof and to genetic sequences encoding same. More particularly, the present invention relates to a nucleic acid molecule comprising a sequence of nucleotides which encodes or is complementary to a sequence which encodes a type II serine proteinase inhibitor (PI) precursor from a plant wherein said precursor comprises at least three PI monomers and wherein at least one of said monomers has a chymotrypsin specific site and at least one other of said monomers has a trypsin specific site.

Abstract: The present invention relates generally to proteinase inhibitors, a precursor thereof and to genetic sequences encoding same. More particularly, the present invention relates to a nucleic acid molecule comprising a sequence of nucleotides which encodes or is complementary to a sequence which encodes a type II serine proteinase inhibitor (PI) precursor from a plant wherein the precursor comprises at least three PI monomers and wherein at least one of the monomers has a chymotrypsin specific site and at least one other of the monomers has a trypsin specific site.