Disturbed nitrogen metabolism associated with the hyperhydric status of fully habituated callus of sugarbeet

Does altered nitrogen metabolism and H2O

Does altered nitrogen metabolism and H2O2accumulation explain the vitrified status of the fully habituated callus ofBeta vulgaris(L.)?

✍ Frédérik Dily; Claude Huault; Thomas Gaspar; Jean-Pierre Billard 📂 Article 📅 1993 🏛 Springer 🌐 English ⚖ 492 KB

The habituated callus is a vitrified tissue which has two main biochemical characteristics both leading to production of toxic forms of oxygen: first the blockage of the porphyrin pathway and a lack of H20 2 detoxifying enzymes (catalase and peroxidases); secondly a deviation of the nitrogen metabol