Cargando…

Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments

Moringa peregrina (Forssk.) Fiori, one of 13 species of the Moringaceae family widely distributed throughout the dry tropics, has the potential to become one of the most economically important medicinal plants in Egypt. However, despite its tolerance for drought and heat, it is also threatened by in...

Descripción completa

Detalles Bibliográficos
Autores principales: Gärtner, Holger, Farahat, Emad
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592978/
https://www.ncbi.nlm.nih.gov/pubmed/34795687
http://dx.doi.org/10.3389/fpls.2021.760002
_version_ 1784599605924593664
author Gärtner, Holger
Farahat, Emad
author_facet Gärtner, Holger
Farahat, Emad
author_sort Gärtner, Holger
collection PubMed
description Moringa peregrina (Forssk.) Fiori, one of 13 species of the Moringaceae family widely distributed throughout the dry tropics, has the potential to become one of the most economically important medicinal plants in Egypt. However, despite its tolerance for drought and heat, it is also threatened by increasing temperatures and decreasing precipitation. Although the phenophase of this species is well documented, almost nothing is known about its period of cambial activity in desert regions. Ring formation and the general environmental adaptability of trees are affected by the timing of cambial activation. In our study site, we observe a distinct coupling of the development of new green leaves at the onset of vegetative growth in October and the phase of cambial activity (November–January). The onset of cambial activity seems to be related to a drop in temperature in October and the onset of torrential rains in the region. There might even be a short phase between the end of cambial activity and the onset of bud formation without xylem formation, but with photosynthetic activity. If so, we assume that all assimilates are stored as non-structural carbohydrates (NSC) in the parenchyma of the new ring. This potential gap opens new questions regarding the correlation between NSC storage capacity and the timing of remobilization for subsequent ring formation.
format Online
Article
Text
id pubmed-8592978
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-85929782021-11-17 Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments Gärtner, Holger Farahat, Emad Front Plant Sci Plant Science Moringa peregrina (Forssk.) Fiori, one of 13 species of the Moringaceae family widely distributed throughout the dry tropics, has the potential to become one of the most economically important medicinal plants in Egypt. However, despite its tolerance for drought and heat, it is also threatened by increasing temperatures and decreasing precipitation. Although the phenophase of this species is well documented, almost nothing is known about its period of cambial activity in desert regions. Ring formation and the general environmental adaptability of trees are affected by the timing of cambial activation. In our study site, we observe a distinct coupling of the development of new green leaves at the onset of vegetative growth in October and the phase of cambial activity (November–January). The onset of cambial activity seems to be related to a drop in temperature in October and the onset of torrential rains in the region. There might even be a short phase between the end of cambial activity and the onset of bud formation without xylem formation, but with photosynthetic activity. If so, we assume that all assimilates are stored as non-structural carbohydrates (NSC) in the parenchyma of the new ring. This potential gap opens new questions regarding the correlation between NSC storage capacity and the timing of remobilization for subsequent ring formation. Frontiers Media S.A. 2021-11-02 /pmc/articles/PMC8592978/ /pubmed/34795687 http://dx.doi.org/10.3389/fpls.2021.760002 Text en Copyright © 2021 Gärtner and Farahat. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Gärtner, Holger
Farahat, Emad
Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments
title Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments
title_full Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments
title_fullStr Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments
title_full_unstemmed Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments
title_short Cambial Activity of Moringa peregrina (Forssk.) Fiori in Arid Environments
title_sort cambial activity of moringa peregrina (forssk.) fiori in arid environments
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8592978/
https://www.ncbi.nlm.nih.gov/pubmed/34795687
http://dx.doi.org/10.3389/fpls.2021.760002
work_keys_str_mv AT gartnerholger cambialactivityofmoringaperegrinaforsskfioriinaridenvironments
AT farahatemad cambialactivityofmoringaperegrinaforsskfioriinaridenvironments