Heme and chlorophyll (Chl) are porphyrins. Porphyrins (also referred to as tetrapyrroles) are essential for life in the biosphere. Chlorophyll catalyzes the conversion of solar energy to chemical ener
The world population is expected to increase to 9 billion by the year 2050 which will generate food and fuel shortages. Since it will be difficult to increase the land area under cultivation without s
