Effectiveness of growth promoters for the seagrass (Cymodocea nodosa) restoration

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Publicado en:Frontiers in Plant Science vol. 16 (Jun 2025), p. 1507804-1507815
Autor Principal: Marletta, Giuliana
Outros autores: Sacco, Domenico, Danovaro, Roberto, Bianchelli, Silvia
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Frontiers Media SA
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022 |a 1664-462X 
024 7 |a 10.3389/fpls.2025.1507804  |2 doi 
035 |a 3273795068 
045 2 |b d20250601  |b d20250630 
100 1 |a Marletta, Giuliana  |u Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Ancona, Italy, National Biodiversity Future Centre, Palermo, Italy 
245 1 |a Effectiveness of growth promoters for the seagrass (Cymodocea nodosa) restoration 
260 |b Frontiers Media SA  |c Jun 2025 
513 |a Journal Article 
520 3 |a Seagrass meadows are regressing due to the cumulative impacts that affect coastal ecosystems worldwide. Seagrass restoration has been repeatedly proposed to reverse this trend, although with contrasting results due to the difficulty in maintaining the transplanted rhizomes. Enhancing the vegetative propagation of the rhizome plantings (e.g., employing growth-promoters) could represent a reliable tool to increase the success of seagrass restoration. Here we tested the effects of physio-activators, as plant growth-promoting bacteria (PGPB), and synthetic hormones, as plant growth regulators (PGRs), on a seagrass species to assess their potential utilization to enhance restoration efficiency. We conducted two separate experiments in aquaria on Cymodocea nodosa fragments: in the first one, the fragments were exposed to PGRs for six weeks, while in the second experiment, the fragments were exposed to PGPB for four weeks. For each experiment (PGRs and PGPB), the formation of new roots and new leaves, the survivorship, and the trend of maximum leaf length were compared between the treated and control (not exposed to PGRs or PGPB) fragments. It was observed that only the PGPB had a significant effect on the fragments’ survivorship (90% in treated fragments vs. 25% in control ones) and contributed significantly to the formation of new leaves and roots of C. nodosa fragments. On the contrary, in the experiments with PGRs, no significant effects were observed between treated and control fragments, and both showed a survivorship of 100% at the end of the experiment. Our study showed that the application of growth-promoters (particularly PGPB) on fragments could increase their survival and the formation of new roots and leaves. Therefore, the use of PGPB on C. nodosa fragments can allow their re-employment in restoration interventions, without damaging the individuals of natural populations. 
651 4 |a Mediterranean Sea 
651 4 |a Adriatic Sea 
653 |a Promoters 
653 |a Fragments 
653 |a Propagation 
653 |a Survival 
653 |a Leaves 
653 |a Rhizomes 
653 |a Roots 
653 |a Sea grasses 
653 |a Plant growth 
653 |a Growth regulators 
653 |a Eutrophication 
653 |a Aquariums 
653 |a Natural populations 
653 |a Exposure 
653 |a Plant propagation 
653 |a Hormones 
653 |a Coastal ecosystems 
653 |a Salinity 
653 |a Cymodocea nodosa 
653 |a Environmental 
700 1 |a Sacco, Domenico  |u Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Ancona, Italy 
700 1 |a Danovaro, Roberto  |u Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Ancona, Italy, National Biodiversity Future Centre, Palermo, Italy 
700 1 |a Bianchelli, Silvia  |u Dipartimento di Scienze della Vita e dell’Ambiente, Università Politecnica delle Marche, Ancona, Italy, National Biodiversity Future Centre, Palermo, Italy 
773 0 |t Frontiers in Plant Science  |g vol. 16 (Jun 2025), p. 1507804-1507815 
786 0 |d ProQuest  |t Agriculture Science Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3273795068/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/3273795068/fulltext/embedded/6A8EOT78XXH2IG52?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3273795068/fulltextPDF/embedded/6A8EOT78XXH2IG52?source=fedsrch