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Article
Open AccessMolecular basis for the production of cyclic peptides by plant asparaginyl endopeptidases
Asparaginyl endopeptidases (AEPs) are proteases that have crucial roles in plant defense and seed storage protein maturation. Select plant AEPs, however, do not function as proteases but as transpeptidases (li...
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Article
Cloning of cDNA for a stylar glycoprotein associated with expression of self-incompatibility in Nicotiana alata
Self-incompatibility in flowering plants is controlled by the S gene. A complementary DNA clone encoding a style protein of Nicotiana alata which segregates with the S2 allele has now been sequenced. The S-allele...
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Article
Growth limitation of a coastal diatom by low zinc ion activity
THE total zinc concentration in unpolluted marine waters has been reported to be in the 10−10 M range1. Such low concentration of an essential micronutrient suggests that the growth of some phytoplankton may be z...