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Seed endosymbiosis: a vital relationship in providing prenatal care to plants.
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- Author(s): Vujanovic, V.; Germida, J.J.; Cober, Elroy
- Source:
Canadian Journal of Plant Science; Dec2017, Vol. 97 Issue 6, p972-981, 10p- Subject Terms:
- Source:
- Additional Information
- Abstract: Global food security is a challenge, especially under changing climatic conditions. Recent advances in plant technology using plant-microbiome interactions promise an increased crop production. Indeed, all healthy plants or crop genotypes carry a beneficial microbiome, encompassing root- and seed-associated endosymbionts, providing mycotrophy and mycovitality to plants, respectively. Recent studies have found that mycovitality, or the endosymbiotic seed-fungus relationship and its key translational functions, bear tangible biotechnological benefits. Thus, this paper underlines the role of endophytes as early plant growth promoters under stressful environments. Notably, it explores the concept of plant prenatal care towards enhanced seed vigor, germination, and resilience, which results in an improved crop yield under stressful conditions. It presents an extensive research overview of endosymbiotic plant-fungi relationships with special focus on the wheat seed, an important source of staple food. Historical advances in terminology and scientific concepts on the subject are also presented to highlight the areas where further research is urgently needed. [ABSTRACT FROM AUTHOR]
- Abstract: La sécurité alimentaire mondiale est un véritable enjeu, surtout face au changement climatique. Des progrès récents en technologie végétale reposant sur les réactions entre la plante et le microbiome promettent une hausse de la production. De fait, les plantes et les génotypes agricoles vigoureux possèdent tous un microbiome utile composé des endosymbiontes des racines et de la semence permettant au végétal de profiter respectivement des matières organiques décomposées par les champignons (mycotrophie) et de la mycovitalité. Des études récentes montrent que la mycovitalité, c'est-à-dire l'endosymbiose entre la graine et le champignon et ses principales fonctions traductionnelles, a des effets biotechnologiques tangibles et bénéfiques. Le présent article met en relief le rôle des endophytes en tant qu'accélérateur de croissance initial, quand les conditions sont difficiles. Plus précisément, il examine le concept des « soins prénataux » végétaux assurant une augmentation de la vigueur, la germination et la résilience des semences, qui aboutissent elles-mêmes à un rendement supérieur de la culture malgré les facteurs de stress. L'auteur offre un vaste survol de la recherche sur les liens endosymbiotiques entre la plante et les cryptogames, s'attardant notamment au blé, cette denrée capitale. Il se penche aussi sur l'évolution historique de la terminologie et des concepts scientifiques, pour faire ressortir les éléments sur lesquels il faudrait rapidement approfondir les recherches. [Traduit par la Rédaction] [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Canadian Journal of Plant Science is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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