Vigna unguiculata subsp. sesquipedalis
Vigna unguiculata subsp. sesquipedalis · Accepted scientific name
Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆
Vigna unguiculata subsp. sesquipedalis, commonly known as the yardlong bean, is a highly productive tropical legume valued for its long, slender pods. This subspecies plays a critical role in food security due to its high protein content and adaptability to various environmental conditions. To facilitate efficient large-scale propagation and genetic improvement, advanced tissue culture techniques are frequently employed. One effective method for establishing regenerative cultures involves the use of cotyledonary node explants. These specialized tissues serve as a primary starting point for micropropagation, ensuring the rapid production of healthy, uniform plantlets.
- Synonyms
- Vigna Inga · Vigna Brasilica · 24 more
- Common names
- Not available
- Family
- Fabaceae
- Distribution
- Not available
- Plant Parts
- Not available
Classification
Common Names
Vigna unguiculata subsp. sesquipedalis is a fascinating plant that is known by a diverse array of regional names. Depending on the local dialect, it may be referred to as Bajeca or Chicote. In some culinary contexts, it is frequently called Fava-chicote or Feijão-aspargo. It is also widely recognized by the descriptive name Feijão-cobra, which highlights its unique growth pattern. These various monikers reflect the plant's widespread presence and cultural importance across different areas.
Sources: Catalogue of Life (COL)
Synonyms
Vigna unguiculata subsp. sesquipedalis is a botanical subject characterized by a complex history of taxonomic classifications. Throughout various scientific studies, this plant has been identified by several different synonyms, including the name Dolichos didjre. It has also been formally recorded in literature as Dolichos sesquipedalis and Vigna asparaginea. Furthermore, researchers have previously utilized the designations Vigna brasilica and Vigna inga to describe the same species. Understanding these overlapping nomenclatures is essential for accurately tracking the plant's biological lineage.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Vigna unguiculata subsp. sesquipedalis is a unique botanical specimen that belongs to the kingdom Plantae. Within this vast biological realm, it is specifically classified under the class Equisetopsida. Its evolutionary lineage continues through the order Fabales, which places it among a diverse group of flowering plants. Furthermore, it is a member of the family Fabaceae, a group well known for its significant agricultural importance. Ultimately, this plant is defined by its placement within the genus Vigna, marking its distinct identity in the natural world.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fabales |
| Family | Fabaceae |
| Genus | Vigna |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Vigna unguiculata subsp. sesquipedalis exhibits a diverse geographical range that spans much of the African continent. Its presence is well-documented across Northern Africa, specifically within the regions of Algeria and Egypt. Moving toward the east, the plant is also found throughout Northeast Tropical Africa in countries like Chad and Ethiopia. Furthermore, its distribution extends into East Tropical Africa, where it thrives in Kenya. This wide-reaching habitat demonstrates the plant's remarkable ability to adapt to various African environments.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Biological Activities
Compounds
Conditions
Preparations
Vigna unguiculata subsp. sesquipedalis is prepared as cotyledonary node explants to facilitate Agrobacterium-mediated transformation. These specific explants are sourced from five-day-old seedlings that have been germinated on B5 basal medium. The preparation process involves using these nodal segments for inoculation with an Agrobacterium tumefaciens bacterial suspension. Following inoculation, the cotyledonary node explants undergo a three-day cocultivation period on B5 basal medium to enable gene transfer. This method leverages the high transformation competence found within the subepidermal cell layers of the prepared nodes.