A Plant Growth Inhibitor from Immature Seeds of Corn

Plant Growth Inhibitor from Abrus precatorius Seeds.

Some properties of a cysteine proteinase inhibitor from corn endosperm.

Thougha numberof proteinaceous cysteine proteinase inhibitors (cystatins) of animal origin have long been studied in detail,1* little is well-defined about plant cystatins except for oryzacystatins from rice seeds.2'3) Preceding the studies on oryzacystatins, however, we purified a cysteine proteinase inhibitor from corn.4'5) In this study we carried out amino acid analysis and kinetic studies ...

PI(3,5)P2 sows the seeds of plant growth

I n all eukaryotes, formin proteins nu-cleate and elongate actin fi laments using conserved " formin homology " domains called FH1 and FH2. Many fungal and animal formins are regulated by Rho GTPases, but plant formins lack N-terminal Rho-binding domains (1). van Gisbergen et al. reveal that certain formins in the moss Physcomitrella patens are regulated instead by the phospholipid PI(3,5)P 2 (...

Aflatoxin Control During Plant Growth and Harvest of Corn

Extensive aflatoxin occurrence in corn both before and after harvest has prompted investigation to identify conditions contributing to crop infection by toxin-producing fungi. This presentation will attempt to summarize the preliminary observations of fungal-corn associations in the field in response to concern about this type of aflatoxin contamination. In the fall of 1972, a study of field co...

A novel alpha-amylase inhibitor from amaranth (Amaranthus hypocondriacus) seeds.

The major alpha-amylase inhibitor (AAI) present in the seeds of Amaranthus hypocondriacus, a variety of the Mexican crop plant amaranth, is a 32-residue-long polypeptide with three disulfide bridges. Purified AAI strongly inhibits the alpha-amylase activity of insect larvae (Tribolium castaneum and Prostephanus truncatus) and does not inhibit proteases and mammalian alpha-amylases. AAI was sequ...