ArticleBiologia futura2019
Activity of δ-aminolevulinic acid dehydratase at Ramonda nathaliae and Ramonda serbica plants during dehydration and rehydration.
Article in Biologia futura, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 6 citations in OpenAlex.
- Recovery Dynamics of Photosynthetic Performance and Antioxidant Defense in Resurrection PlantsPlants (Basel, Switzerland) · 2025Article
- Acquisition of Freezing Tolerance of Resurrection Species from Gesneriaceae, a Comparative Study.Plants (Basel, Switzerland) · 2023Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionRamonda nathaliae and Ramonda serbica are resurrection plants belonging to homoiochlorophyllous desiccation-tolerant angiosperms. Chlorophyll biosynthesis is one of the most important metabolic pathways to tolerate desiccation in these plant species. MATERIALS AND
methodsTo better understand the early pathway steps of chlorophyll biosynthesis, we have analyzed the enzyme δ-aminolevulinic acid dehydratase (ALA-D) and contents of δ-aminolevulinic acid (ALA) and total chlorophyll as a final product during dehydration and rehydration stages for these plant species.
resultsOur results showed that the activity of ALA-D in R. nathaliae and R. serbica plants rapidly decreased during dehydration and in the final stage of desiccation the activity of this enzyme was decreased by 79% and 86%, respectively. After rehydration of plants, the ALA-D activity was fully restored. In contrast, the ALA content of both plant species significantly increased during desiccation and decreased after 48 hr of rewatering. In each stage of dehydration or rehydration, a significant negative correlation was established between ALA-D activity and ALA content in both plant species.
conclusionsTotal chlorophyll content was preserved more in R. nathaliae than in R. serbica during desiccation. Moreover, ALA-D activity was decreased to a minimal level but preserved its function during desiccation, and this suggests one possible mechanism of desiccation tolerance to retain the chlorophyll of these plant species.
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