Shoot tip necrosis of in vitro plant cultures: a reappraisal of possible causes and solutions.

ABSTRACT:

Main conclusion

Shoot tip necrosis is a physiological condition that negatively impacts the growth and development of in vitro plant shoot cultures across a wide range of species. Shoot tip necrosis is a physiological condition and disorder that can arise in plantlets or shoots in vitro that results in death of the shoot tip. This condition, which can spread basipetally and affect the emergence of axillary shoots from buds lower down the stem, is due to the cessation of apical dominance. STN can occur at both shoot multiplication and rooting stages. One of the most common factors that cause STN is nutrient deficiency or imbalance. Moreover, the presence or absence of plant growth regulators (auxins or cytokinins) at specific developmental stages may impact STN. The cytokinin to aux

SUBMITTER: Teixeira da Silva JA 

PROVIDER: S-EPMC7471112 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature