Agave tequilana Through the 1990s, diseases spread, particularly "Fusarium" fungi and "Erwinia" bacteria, exacerbated by the low genetic diversity of the agave plants. Other problems include the agave weevil, "Scyphophorus acupunctatus", and a fungus, "Thielaviopsis paradoxa". According to a 2004 study, additional pathogens, "Erwinia carotovora", "Enterobacter agglomerans", "Pseudomonas mendocina", and "Serratia" spp. are responsible for continued rot. The homoisoflavanones 5,7-dihydroxy-3-(4-methoxybenzyl)-chroman-4-one, 7-hydroxy-3-(4-hydroxybenzyl)-chroman-4-one and 4’-demethyl-3,9-dihydro-punctatin can be isolated from "A. tequilana". Agave tequilana Agave tequilana, commonly called blue agave () or tequila agave, is an agave plant that is an important economic product of Jalisco, Mexico, due to its role as the base ingredient
Agave margaritae Agave margaritae Agave margaritae is a species of plant from the Agave genus. Its common name in English is "Magdalena Island Agave". The plant is endemic to Baja California Sur state in northwestern Mexico. It is only found on Magdelena Island (type locality) and Isla Santa Margarita in the Gulf of California. It is associated with "Echinocereus barthelowanus". "Agave margaritae" consists small rosettes, that are formed in sparse offshoorts. Its pointed leaves have oval to wide lancets and are thick, fleshy, variably arranged, bright-yellow/green colored, 10 to 25 cm long and 7 to 10 cm wide. The leaf edges are