THE present volume is a continuation of the introduction to plant geography by the same author issued in 1913 as one of the series of the Oxford geographies designed by the late Prof, and Mrs ...

DNA methylation is the covalent addition of methyl groups to DNA bases, typically the cytosine of CpG dinucleotides. It is catalyzed by methyltransferase enzymes using a S-adenosyl methionine ...

Trees also have another way to beat the heat—absorb CO2 that fuels global warming. Plants always need some CO2 for photosynthesis, but Earth's air is now so thick with extra emissions that ...