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This picture was taken on September 25th 2018, at the Singapore Botanic Gar

This picture was taken on September 25th 2018, at the Singapore Botanic Gardens. I noticed that while the rest of the plant leaves were a nice rich deep green,...
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This picture was taken on September 25th 2018, at the Singapore Botanic Gardens. I noticed that while the rest of the plant leaves were a nice rich deep green, the end of this branch, where there were some whitish powder-like substance at the leaf bases caused the leaves to change colour and wither. But the colour changes were so strikingly beautiful!

A pathogen is an organism that causes a disease. There are four main types of pathogen: virus, bacteria, fungi, protists.
All types of pathogen have a simple life cycle. They infect a host, reproduce (or replicate themselves if a virus), spread from their host and then infect other organisms.
Plant pathogens kill or reduce the growth of many plants, which in turn can reduce biodiversity. In some cases, it infects the chloroplasts of plant leaves and changes their colour from green to yellow or white in a mosaic pattern. It can also make leaves crinkled or curled up. This reduces the plant's ability to photosynthesise and grow properly, which can reduce farmers' crop yields. Leaf colouration is also affected by the mineral content of the soils, eg. magnesium and by essential vitamins eg. nitrates.
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Peer Award
1mountaineerfan Hoorakhsh_Pb
Magnificent Capture
FairleaCottage