Acta Physiologiae Plantarum

, Volume 36, Issue 8, pp 2067–2077 | Cite as

Encapsulation of internode regenerated adventitious shoot buds of Indian Siris in alginate beads for temporary storage and twofold clonal plant production

  • S. Perveen
  • M. AnisEmail author
Original Paper


This study for the first time demonstrates single bead alginate encapsulation and conversion (multiple shootlets rejuvenation) from adventitious shoot buds (AB) of Albizia lebbeck (L.) Benth. Internodal (IN) segments isolated from field grown 1-year-old plant of A. lebbeck were used for AB induction under in vitro conditions. IN segments incubated on MS medium augmented with 10.0 µM BA exhibited highest adventitious shoot bud induction frequencies (76 %) on all over the surface after 10 weeks of culture. Induced AB were detached from in vitro proliferating cultures and used for encapsulation as an explant to produce large number of synseeds (07–08) from a single IN explant. Four to five AB were encapsulated in a single calcium alginate bead to manage mass propagation, interim storage and germplasm sharing. The finer gel matrix for encapsulation was attained using 3.0 % sodium alginate and 100 mM calcium chloride. Highest percentage of shoot emergence and multiplication (75 %) from synseed was obtained on MS + 10.0 µM BA + 1.0 µM NAA (RM) after 10 weeks of culture. Encapsulated adventitious buds stored at 4 °C for 1–8 weeks (2 months) too showed thriving shoot emergence (68 %) and multiplication in encapsulated AB and development into complete plantlets when returned to RM. Hence, 4–5 encapsulated AB stored at 4 °C, when cultured back to RM also showed shoot induction resulting in up to 10 shoots per synseeds after 10 weeks of culture. Healthy root formation (½ MS + 2.0 µM IBA) and acclimatization were optimized by using previously standardized protocol (Perveen et al. in J For Res 22:47–52, 2011). Genetic stability of synseed-derived plantlets acclimatized under ex vitro was assessed and compared with mother plant using inter-simple sequence repeats (ISSR) analysis. The synthetic seeds have the achievability of being a substitute planting material for the forestry sector in future, especially for the multipurpose plant species.


Synseed Clone Adventitious buds Multipurpose Internode 



Internodal segment


Adventitious buds


Regeneration medium




Indole-3-butyric acid


Murashige and Skoog medium


α-Naphthalene acetic acid




2-Isopentenyl adenine


Plant growth regulators



Financial support from the DST–FIST (2011–2016) and UGC-SAP (DRS-I) programs (2009–2014), Govt of India, New Delhi, is highly appreciated. Award of UGC-BSR fellowship to Shahnaz Perveen is duly acknowledged.


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Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2014

Authors and Affiliations

  1. 1.Plant Biotechnology Laboratory, Department of BotanyAligarh Muslim UniversityAligarhIndia
  2. 2.Department of Plant Production, College of Food and Agricultural SciencesKing Saud UniversityRiyadhSaudi Arabia

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