Volcanoes in soybean leaves
You’ve never seen a few brown or reddish dots on the leaves of plants. It all starts with a spore brought by the wind. The spore adheres to the surface of the plant and the story of a new fungus begins. The first task will be to pierce the surface of the plant and penetrate into the softer tissues. Then you will live there, inside the host plant, stealing food from its cells. And in about ten days he'll go out there, like a volcano, to make spores ready to repeat the same story. Soon the host plant and its neighbours will be full of volcanoes.
It could have been the story of any rust; but in this case it is the rust of soy, the fungus Phakopsora pachyrhizi. It causes extensive damage to soybean plantations, especially in humid and mild climates. It is originally Chinese, but from there it passed to Africa, and then spread throughout South America. He also arrived in the United States in 2004, where he is said to have had Hurricane Ivan as his means of transportation.
But the opposite winds seem to come to the fungus: genetically modified soybean plants that will be impossible for the fungus are said to be on the market soon...
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