Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops

Crassocephalum rubens and Crassocephalum crepidioides are plant species native to Africa, but grow in most tropical and subtropical regions of the world. They are rich in vitamins, minerals, and essential oils and are traditional leafy vegetables and medicinal plants in Sub-Saharan Africa. The plant...

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Main Authors: Adebimpe N. Adedeji-Badmus, Sebastian Schramm, Michael Gigl, Williams Iwebema, Pablo Albertos, Corinna Dawid, Tobias Sieberer, Brigitte Poppenberger
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.923421/full
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author Adebimpe N. Adedeji-Badmus
Sebastian Schramm
Michael Gigl
Williams Iwebema
Pablo Albertos
Corinna Dawid
Tobias Sieberer
Brigitte Poppenberger
author_facet Adebimpe N. Adedeji-Badmus
Sebastian Schramm
Michael Gigl
Williams Iwebema
Pablo Albertos
Corinna Dawid
Tobias Sieberer
Brigitte Poppenberger
author_sort Adebimpe N. Adedeji-Badmus
collection DOAJ
description Crassocephalum rubens and Crassocephalum crepidioides are plant species native to Africa, but grow in most tropical and subtropical regions of the world. They are rich in vitamins, minerals, and essential oils and are traditional leafy vegetables and medicinal plants in Sub-Saharan Africa. The plants are still mainly collected from the wild but shall be taken into cultivation and an important aim in the domestication of these species is to improve traits that are relevant for crop production. Here, seed formation and germination capacities in C. crepidioides and C. rubens were investigated, and it was found that C. crepidioides exhibits a higher level of seed dormancy, which could be broken with light, and was correlated with higher amounts of abscisic acid (ABA), a plant hormone that promotes seed dormancy. ABA is also very well-known for its role in abiotic stress tolerance, and it is shown that tetraploid C. crepidioides exhibits a higher level of resistance against drought and heat stress than diploid C. rubens, traits that will benefit the cultivation of these plants, particularly in rain-fed cropping systems. The potential of Crassocephalum to improve nutrition and increase the resilience of marginal cropping systems in Africa is discussed.
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spelling doaj.art-2da80972fd0743efa6d7b1b62fa20cdc2022-12-22T03:39:09ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-07-011310.3389/fpls.2022.923421923421Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan CropsAdebimpe N. Adedeji-Badmus0Sebastian Schramm1Michael Gigl2Williams Iwebema3Pablo Albertos4Corinna Dawid5Tobias Sieberer6Brigitte Poppenberger7Biotechnology of Horticultural Crops, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyBiotechnology of Horticultural Crops, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyChair of Food Chemistry and Molecular Sensory Science, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyBiotechnology of Horticultural Crops, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyBiotechnology of Horticultural Crops, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyChair of Food Chemistry and Molecular Sensory Science, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyResearch Group Plant Growth Regulation, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyBiotechnology of Horticultural Crops, TUM School of Life Sciences, Technical University of Munich, Freising, GermanyCrassocephalum rubens and Crassocephalum crepidioides are plant species native to Africa, but grow in most tropical and subtropical regions of the world. They are rich in vitamins, minerals, and essential oils and are traditional leafy vegetables and medicinal plants in Sub-Saharan Africa. The plants are still mainly collected from the wild but shall be taken into cultivation and an important aim in the domestication of these species is to improve traits that are relevant for crop production. Here, seed formation and germination capacities in C. crepidioides and C. rubens were investigated, and it was found that C. crepidioides exhibits a higher level of seed dormancy, which could be broken with light, and was correlated with higher amounts of abscisic acid (ABA), a plant hormone that promotes seed dormancy. ABA is also very well-known for its role in abiotic stress tolerance, and it is shown that tetraploid C. crepidioides exhibits a higher level of resistance against drought and heat stress than diploid C. rubens, traits that will benefit the cultivation of these plants, particularly in rain-fed cropping systems. The potential of Crassocephalum to improve nutrition and increase the resilience of marginal cropping systems in Africa is discussed.https://www.frontiersin.org/articles/10.3389/fpls.2022.923421/fullABAdormancydrought stresseboloneglected cropredflower ragleaf
spellingShingle Adebimpe N. Adedeji-Badmus
Sebastian Schramm
Michael Gigl
Williams Iwebema
Pablo Albertos
Corinna Dawid
Tobias Sieberer
Brigitte Poppenberger
Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops
Frontiers in Plant Science
ABA
dormancy
drought stress
ebolo
neglected crop
redflower ragleaf
title Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops
title_full Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops
title_fullStr Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops
title_full_unstemmed Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops
title_short Species-Specific Variation in Abscisic Acid Homeostasis and Responses Impacts Important Traits in Crassocephalum Orphan Crops
title_sort species specific variation in abscisic acid homeostasis and responses impacts important traits in crassocephalum orphan crops
topic ABA
dormancy
drought stress
ebolo
neglected crop
redflower ragleaf
url https://www.frontiersin.org/articles/10.3389/fpls.2022.923421/full
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