Additionally, a non-photochemical mechanism may be activated to minimize photooxidative damage.
Barbara Jurczyk, Maciej Grzesiak, Ewa Pociecha, Magdalena Wlazło, Marcin Rapacz 2019, 'Diverse Stomatal Behaviors Mediating Photosynthetic Acclimation to Low Temperaturesin Hordeum vulgare', Frontiers in Plant Sciencehttps://www.frontiersin.org/article/10.3389/fpls.2018.01963/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Likewise, these systemic redox changes primed the plant increasing its tolerance to photooxidative stress.
Tadeo F. Fernandez-Göbel, Rocío Deanna, Nacira B. Muñoz, Nacira B. Muñoz, Germán Robert,Germán Robert, Sebastian Asurmendi, Ramiro Lascano, Ramiro Lascano 2019, 'Redox Systemic Signaling and Induced Tolerance Responses During Soybean–Bradyrhizobiumjaponicum Interaction: Involvement of Nod Factor Receptor and Autoregulation of Nodulation',Frontiers in Plant Sciencehttps://www.frontiersin.org/article/10.3389/fpls.2019.00141/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Anthocyanins also mitigate photooxidative injury in leaves by efficiently scavenging free radicals and reactive oxygen species.
Kevin S. Gould 2004, 'Nature's Swiss Army Knife: The Diverse Protective Roles of Anthocyanins in Leaves',Journal of Biomedicine and Biotechnologyhttp://dx.doi.org/10.1155/S1110724304406147. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Therefore, redox homeostasis was not maintained, and the melon leaves presented with symptoms of photooxidative stress.
Pengli Li, Jinyang Weng, Qing Zhang, Liyao Yu, Qi Yao, Liying Chang, Qingliang Niu 2018, 'Physiological and Biochemical Responses of Cucumis melo L. Chloroplasts to Low-PhosphateStress', Frontiers in Plant Sciencehttps://www.frontiersin.org/article/10.3389/fpls.2018.01525/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)