GeoChemBio.com/biology/organisms/Solanum tuberosum (potato)

 

Potato flowers
Potato plant

Please help keeping these websites open for everybody as long as possible

 

Solanum tuberosum, potato

Download this page in pdf format (can be old)
Print

Back to top
Nemose

cellular organisms - Eukaryota - Viridiplantae - Streptophyta - Streptophytina - Embryophyta - Tracheophyta - Euphyllophyta - Spermatophyta - Magnoliophyta - eudicotyledons - core eudicotyledons - asterids - lamiids - Solanales - Solanaceae - Solanoideae - Solaneae - Solanum - Solanum tuberosum

Brief facts

Back to top
Nemose

Developmental stages (life cycle)

Life Cycle Stages

The potato plant has a short life span ranging from 80 to 150 days from planting to maturity, with differences existing between varieties. Its developmental stages are often described in terms of tuberization and tuber development. The life cycle of a potato tuber is characterized by initiation and growth followed by a period of dormancy and finally sprouting resulting in the next (vegetative) generation.

Back to top
Nemose

Potato tuber anatomy illustrated

Potato tuber anatomy

 

Back to top
Nemose

Potato tuber

Back to top
Nemose

Back to top
Nemose

Flowering potato plants

 

Sprouted tubers

References

 

Websites

Back to top Nemose

Appendix

Fischer L, Lipavska H, Hausman JF, Opatrny Z. Morphological and molecular characterization of a spontaneously tuberizing potato mutant: an insight into the regulatory mechanisms of tuber induction. BMC Plant Biol. 2008 Nov 21;8:117.

Potato plant development

Morphology of Lada and ST plants. (A) Four-week-old plants grown in vitro under standard culture conditions (3% sucrose); (B) Sprouting of tubers stored for six months at 4°C; (C) Arrangement of tubers on three-month-old plants cultivated in pots under 15/9 (L/D) photoperiod; (D) Phenotype of four-week-old plants grown from tubers in pots under continuous light; (E) Detailed view on tuberization of ST plant grown under continuous light; note swelling buds, which are going to form sessile tubers; (F) Single-node cuttings of ST plants cultured in vitro on media with variable levels of sucrose (5% or 7% suc) under high (HL) or low (LL) irradiance (PPFD of 400–500 or 50–60 μmol m-2 s-1, respectively); cuttings are arranged from the most basal segment on the left to the apical one on the right; (G) Tuberization of single-node cuttings cultured on the tuberization medium in darkness for five weeks; (H) Three-week-old plants grown in the light on the medium supplemented with 5% sucrose and 3 mg/l GA3.

The ST mutant was selected on the basis of its extraordinary phenotype – frequent spontaneous tuberization of single-node cuttings under non-inducing conditions, which were routinely used for the maintenance of shoot cultures in vitro.

Back to top
Nemose