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Gros Michel

life science Maturity 11-13 Next article →

The Gros Michel is a famous type of banana cultivar. Many people know it by the nickname "Big Mike." For a long time, it was the most important banana grown for export. This means it was the main variety sent to many different countries. It belongs to a biological group called the AAA group. Scientists call its official name Musa acuminata (AAA Group) 'Gros Michel.' It is a triploid cultivar, which refers to its specific genetic makeup. This banana played a massive role in the global fruit industry for many years.

Several physical traits made the Gros Michel perfect for shipping across oceans. First, the fruit has a very thick peel. This thick skin makes the banana resilient to bruising during long trips. Second, the bananas grow in very dense bunches. These tight clusters make the fruit much easier to pack and ship. Because of these features, farmers could send them to Europe and North America easily. These qualities allowed the Gros Michel to dominate the international market for decades.

Banana wilt (1919) (20166670479)
Banana wilt (1919) (20166670479)

The history of this banana involves many different people and places. In 1919, a French naturalist named Nicolas Baudin moved corms from Southeast Asia. He placed them in a botanical garden on the island of Martinique. Later, in 1835, a French botanist named Jean François Pouyat moved the fruit from Martinique to Jamaica. In Jamaica, the fruit was known as "Poyo" after its importer. We do not know the exact origin of the name "Gros Michel." Eventually, massive plantations grew these bananas in Honduras and Costa Rica.

Banana wilt (1919) (20166670479)
Banana wilt (1919) (20166670479)

A devastating biological event changed the banana industry forever in the 1950s. A sickness known as Panama disease began to spread through the plantations. This disease is a wilt caused by a specific fungus. The fungus is named Fusarium oxysporum f.sp. cubense. It attacked the plants and wiped out vast tracts of Gros Michel crops in Central America. This fungus was very effective at destroying the plants. It made it impossible for exporters to keep trading this specific variety.

Banana wilt (1919) (20166670479)
Banana wilt (1919) (20166670479)

By the 1960s, the banana industry had to find a new solution. Exporters could no longer rely on the Gros Michel because it was too susceptible to the fungus. They began growing a different variety called the Cavendish. The Cavendish is also part of the Musa acuminata AAA group. However, the Cavendish was more resistant to the Panama disease. Today, the Cavendish has almost entirely replaced the Gros Michel in the commercial industry. The Gros Michel is now only grown on land that has not been infected.

Banana wilt (1919) (20166670479)
Banana wilt (1919) (20166670479)

The Gros Michel is also famous for its unique chemical properties. It contains a high concentration of a compound called isoamyl acetate. This is an ester that is very common in food science. In fact, isoamyl acetate is the chemical often used for "banana" flavoring in sweets. The Gros Michel has much more of this compound than the Cavendish does. Because of this, some people say the Gros Michel tastes like an amplified or artificial version of the Cavendish. There is a myth that artificial flavor was made from this fruit, but isoamyl acetate is a simple compound not tied to one specific cultivar.

Banana wilt (1919) (20166670479)
Banana wilt (1919) (20166670479)

Even popular culture was affected by the decline of this banana. In 1922, a novelty song called "Yes! We Have No Bananas" was performed on Broadway. This song was part of a revue called Make It Snappy. Many believe the song was inspired by the shortage of Gros Michel bananas. This shortage began because of the Panama disease infestation in the early 20th century. Scientists are still studying these plants today. A 2013 paper described experiments to create a Gros Michel that resists black sigatoka. Black sigatoka is another type of fungal infection that affects bananas.

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