Musa acuminata — Wild Banana (TC Culture)

Description

🌿 Musa acuminata — the wild ancestor of the edible banana and the source of the ‘A’ genome. Offered as an in-vitro culture, one multiplying clump per vessel, in two forms: Standard (plain green) and Variegated (cream-and-green chimeral foliage).

🍌 About this banana

Musa acuminata is the primary wild ancestor of almost every edible banana on Earth — the source of the ‘A’ genome. Wild forms make a slender 2.5–4 m pseudostem, upright then arching leaves, and a pendent inflorescence with a deep red-purple bell. The type is grown as an ornamental, a breeding parent and a rootstock-quality clean line.

The Variegated form carries a chimeral mutation that streaks and blocks the leaves (and often the fruit skin) in cream-white and green. It is one of the most sought-after ornamental bananas. Because the variegation is an unstable chimera, in-vitro plantlets vary in the amount of white they carry and some revert to plain green — this is normal for variegated Musa and is priced accordingly.

🧬 Genome group & background

Wild diploid species, genome AA, section Musa. Non-commercial as fruit; grown as an ornamental, a breeding parent and a clean reference line.

✨ Why buy it as a culture

• 🧬 True ‘A’-genome reference material for breeding and teaching
• 🌱 Standard form: vigorous, clean, seed-true wild type
• 🎨 Variegated form: a high-value ornamental almost never offered in India as clean stock
• 🦠 Pathogen-indexed at supply — safe to bring into a collection or lab
• ♻️ Multiplies quickly from one clump for your own scale-up

📊 Culture specification

Culture detail	Specification
Format	Sealed sterile culture vessel
Contents	1 multiplying clump — one clump per culture
Stage	Stage II — shoot multiplication
Medium	MS basal + BAP cytokinin, 0.7% agar
Incubation	25 ± 2 °C, 16 h photoperiod, ~40 µmol m⁻² s⁻¹
True-to-type	Clonal from an indexed mother line
Recommended climate	Warm, bright, humid; 22–34 °C. Variegated form needs high light but shade from harsh midday sun to avoid scorch on white tissue

🎨 A note on the Variegated form

Variegation in Musa is a chimeral trait. Tissue culture can carry it but not perfectly — expect variation in pattern between plantlets and a proportion that revert to green as they grow on. Grow in bright light, keep the plant actively growing, and rogue out fully-green or fully-white shoots to keep the line stable. Variegated vessels are selected for visible variegation at dispatch but no fixed ratio is guaranteed.

🌱 De-flasking & hardening (for the buyer)

• 🧫 On arrival: keep the vessel upright, at 24–28 °C, in bright diffuse light for 3–5 days to recover from transit
• 🪝 Sub-culture onto fresh multiplication medium in a laminar hood, or move rooted shoots to a rooting medium (½ MS + 1 mg/L IBA)
• 💧 Primary hardening: rinse agar off rooted plantlets, plant into sterile coco-peat : perlite (3:1), 90–95% RH under a humidity dome, 25–30 °C
• 🌬️ Step-down humidity over 2–3 weeks; then pot on and grow in 50% shade before field planting
• 🧴 No fertiliser for the first 10 days; then quarter-strength balanced feed

📦 What you will receive

• 1 sealed sterile culture vessel — one multiplying clump, in the Form you select
• Standard: plain-green shoots from the wild-type line
• Variegated: shoots selected for visible cream-and-green variegation (pattern varies; some reversion is normal)
• Mother-line reference label, batch code and printed hardening protocol

🚚 Dispatch & policy

🇮🇳 Cultures ship across India in insulated, cushioned packaging. Prepaid orders only. Each culture is produced to order from a maintained mother line, so allow 2–4 weeks for a clean, contamination-checked vessel to be ready. Living in-vitro material is perishable and cannot be returned; on the rare event of transit contamination or damage, send photos within 24 hours of delivery for a replacement. We pause dispatch during peak monsoon (December–January).