Deciphering the sugar code

Like animals and humans, plants possess a kind of immune system. It can e.g. recognize pathogenic fungi by the chitin in their cell walls, triggering disease resistance. Some fungi hide from the immune system by modifying ...

Residues in fingerprints hold clues to their age

Police have long relied on the unique whorls, loops or arches encoded in fingerprints to identify suspects. However, they have no way to tell how long ago those prints were left behind—information that could be crucial ...

An ecofriendly method for curbing crop pests

Moths and other winged insects, and particularly their larva, can become a problem for farmers, often causing major damage to crops. Pesticides help alleviate the problem, but they have also been strongly criticized. Pheromones ...

Overturning the truth on conservation tillage

Just as we blend, cut, and fold ingredients together to follow a recipe, farmers use equipment to stir together soil and crop residue (stalks and roots of previous crops) before planting. This mechanical action is called ...

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