Skip to main content
Log in

Ecophysiology of Pilocarpus microphyllus in response to temperature, water availability and vapour pressure deficit

  • Original Article
  • Published:
Trees Aims and scope Submit manuscript

Abstract

The jaborandi is a natural source of alkaloids used in the treatment of important diseases and, therefore, relevant for the pharmaceutical industry. However, the lack of information on the jaborandi ecophysiological responses under different climatic conditions is the major limitation for its expansion in Brazil. Thus, we investigated the effects of different environmental conditions on the ecophysiology of jaborandi seedlings, combining several ranges of mean air temperature (T), vapour pressure deficit (VPD) and water availability. For this, jaborandi seedlings were cultivated in four different environments: cold and humid (Temp: 21.1 °C, VPD: 0.31 kPa), hot and humid (Temp: 26.8 °C, VPD: 0.34 kPa), hot and dry (Temp: 26.3 °C, VPD: 1.09 kPa) and cold and dry (Temp: 20.8 °C, VPD: 0.84 kPa); all the environments had two water availability levels: well-watered (control: C) and water-stressed (45% of the maximum substrate water holding capacity). Growth and fluorescence parameters, crop water stress index and enzymatic antioxidant activity were evaluated. Our results revealed that the seedlings reduced their growth when subjected to water restriction in all treatments, resulting in a lower total dry mass production, mainly due to the reduction of the root system. In the well-watered treatments, jaborandi seedlings showed higher growth when cultivated in warmer environments, regardless of the VPD. Under low-temperature conditions, there was a reduction in maximum quantum yield efficiency of PSII, indicating damage to photosystem II; also, the minimum fluorescence and the enzymatic antioxidants activity increased. The highest dry mass accumulation was obtained when the seedlings were submitted to high temperatures, indicating that the regions that experience such conditions are the most suitable for jaborandi cultivation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgements

This work was supported by FAPES (Fundação de Apoio à Pesquisa do Estado do Espírito Santo) with research funding and a doctoral scholarship to the first author (PROCAP 2016 call).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Genilda Canuto Amaral.

Ethics declarations

Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Additional information

Communicated by Fernandez-Marin.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary material 1 (docx 23 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Amaral, G.C., Pezzopane, J.E.M., de Souza Nóia Júnior, R. et al. Ecophysiology of Pilocarpus microphyllus in response to temperature, water availability and vapour pressure deficit. Trees 35, 543–555 (2021). https://doi.org/10.1007/s00468-020-02055-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00468-020-02055-x

Keywords

Navigation