The original question referred to "germbins" which does not seem to be a word used anywhere, let alone biology. Germins, however, are glycoproteins found in plants. Originally discovered in wheat and having something to do with early germination of the plant embryo, hence the name. Now found to be instrumental in both plant development and reactions to environmental stress. They're closely associated with germin-like proteins (GLPs). It seems they're all associated with the extracellular matrix. The functions of germins seem to be very diverse, so in the future we'll likely see germin subclassifications arise to better describe these proteins.