The fungus Ramularia collo-cygni (Ascomycotina) has recently become an important pathogen of barley (Hordeum vulgare), causing leaf spotting on upper leaves. McGrann and Brown studied the factors that cause this fungus...
Although open stomata are necessary for plants to take up CO2 for photosynthesis, this also permits loss of precious water – by transpiration, the so-called necessary evil of photosynthesis. But, surely, nothing worse...