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- Cocco, Emma, et al.
(författare)
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The Influence of Blue and Red Light on Seed Development and Dormancy in Nicotiana tabacum L.
- 2022
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Ingår i: Seeds. - : MDPI. - 2674-1024. ; 1:3, s. 152-163
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Tidskriftsartikel (refereegranskat)abstract
- The correct development of seeds is a pivotal requirement for species preservation. This process depends on the balance between sensing the environmental stimuli/stressors and hormone-mediated transduction, which results in physiological responses. The red and blue regions of the electromagnetic spectrum are known to influence seed dormancy and germination. Here, we report on the effects induced by the blue (peak at 430 nm) and red (peak at 650 nm) regions of the electromagnetic spectrum on seeds from photo- and skotomorphogenetic capsules developed under white, blue, or red light. Regardless of exposure, seeds from skotomorphogenetic capsules showed an almost absent dormancy in association with altered germination kinetics. Conversely, in seeds from photomorphogenetic capsules, the exposure to the blue region induced skotomorphogenetic-like effects, while the exposure to the whole visible range (350–750 nm), as well as to only the red region, showed a dose-related trend. The observed differences appeared to be dependent on the wavelengths in the red and to be based on transduction mechanisms taking place in fruits. While the molecular bases of this differential effect need to be clarified, the results hint at the role played by different light wavelengths and intensities in seed development and germination. These findings may be relevant for applications in crop production and species safeguarding.
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| 3. |
- Pires, Daniel Alvarez, et al.
(författare)
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Five unsolved issues concerning burnout in athletes : An expert perspective
- 2024
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Ingår i: Sports Psychiatry. - : Hogrefe & Huber Publishers. - 2674-0052. ; 3:1, s. 39-46
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Forskningsöversikt (refereegranskat)abstract
- Introduction: Concern about mental health is an increasingly relevant topic in high-performance sport. In this regard, because burnout can be harmful to both the health and performance of athletes, it is of particular importance. Although a great deal of time and effort has been dedicated to the study of athlete burnout, there are still issues that require further work. Therefore, in the present paper, we aim to highlight what, in our perspective, are the most important unsolved issues regarding burnout in athletes. Methods: We brought together expert athlete burnout scholars to offer their perspectives on five unresolved issues in this research area. Results: We describe the following five issues that require further research attention: (i) burnout as a syndrome, (ii) the negative consequences of burnout, (iii) the role of recovery in burnout, (iv) the importance of the social environment, and (v) developing effective interventions to reduce/prevent burnout. Conclusion: Our commentary provides suggestions for future research to help solve these problems, advance our understanding of athlete burnout, and ultimately safeguard the mental health of athletes.
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