Do rapid photosynthetic responses protect maize leaves against photoinhibition under fluctuating light?

Qiao, Mei‐Yu; Zhang, Yajun; Lian, Liu; Shi, Lei; Ma, Qing‐Hu; Chow, Wah Soon

doi:10.1007/s11120-020-00780-5

Cited by 19 publications

(21 citation statements)

References 30 publications

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“…We found that FL decreased rice growth, especially plant height and RGR of leaf area, and leaf chlorophyll content, and these effects were independent from the average light intensity (Figure 1, Figure S5). Recently published results have also shown that varying the frequency of FL, while keeping the same averaged light intensity changes the extent of decrease in plant height and biomass (Qiao et al, 2020). It seems that FL inhibits plant growth, which is possibly due to the fact that plants are not able to fully utilize the light energy absorbed for carbon fixation (Vialet‐Chabrand et al, 2017).…”

Section: Discussionmentioning

confidence: 97%

Leaf photosynthetic and anatomical insights into mechanisms of acclimation in rice in response to long‐term fluctuating light

Wei

Duan

Sun

et al. 2020

Plant Cell & Environment

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Long‐term fluctuating light (FL) conditions are very common in natural environments. The physiological and biochemical mechanisms for acclimation to FL differ between species. However, most of the current conclusions regarding acclimation to FL were made based on studies in algae or Arabidopsis thaliana. It is still unclear how rice (Oryza sativa L.) integrate multiple physiological changes to acclimate to long‐term FL. In this study, we found that rice growth was repressed under long‐term FL. By systematically measuring phenotypes and physiological parameters, we revealed that: (a) under short‐term FL, photosystem I (PSI) was inhibited, while after 1–7 days of long‐term FL, both PSI and PSII were inhibited. Higher acceptor‐side limitation in electron transport and higher overall nonphotochemical quenching (NPQ) explained the lower efficiencies of PSI and PSII, respectively. (b) An increase in pH differences across the thylakoid membrane and a decrease in thylakoid proton conductivity revealed a reduction of ATP synthase activity. (c) Using electron microscopy, we showed a decrease in membrane stacking and stomatal opening after 7 days of FL treatment. Taken together, our results show that electron flow, ATP synthase activity and NPQ regulation are the major processes determining the growth performance of rice under long‐term FL conditions.

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Section: Discussionmentioning

confidence: 97%

Leaf photosynthetic and anatomical insights into mechanisms of acclimation in rice in response to long‐term fluctuating light

Wei

Duan

Sun

et al. 2020

Plant Cell & Environment

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“…Modeling presented by Slattery et al (2018) suggested that the metabolite buffering capacity of C 4 photosynthesis could be capable of sustaining rates of CO 2 assimilation for up to 15 s following a high to low light transition. Indeed, there are many examples of C 4 species maintaining A net after light changes (Krall & Pearcy, 1993;Laisk & Edwards, 1997;Qiao et al, 2020).…”

Section: The Effect Of Fluctuating Light On Carbon Assimilationmentioning

confidence: 99%

The photosynthetic response of C₃ and C₄ bioenergy grass species to fluctuating light

2021

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“…Fluctuations in irradiance are immediately reflected in the chloroplast and in the physiology of leaves, triggering different short-term responses aimed at maximizing photosynthesis, while protecting the photosynthetic apparatus from photo-oxidative damage (Standfuss et al, 2005;Yamori, 2016). These shortterm responses can also be important in triggering long-term acclimation, which is determined not only by the intensity of the incident light, but also by the frequency of oscillations (Qiao et al, 2020). In this section, we will address the different regulatory processes that act as potential inputs for the long-term acclimation responses to fluctuating light in plants (Figure 1).…”

Section: System Inputs: Short-term Responses To Fluctuating Lightmentioning

confidence: 99%

A Holistic Approach to Study Photosynthetic Acclimation Responses of Plants to Fluctuating Light

et al. 2021

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Plants in natural environments receive light through sunflecks, the duration and distribution of these being highly variable across the day. Consequently, plants need to adjust their photosynthetic processes to avoid photoinhibition and maximize yield. Changes in the composition of the photosynthetic apparatus in response to sustained changes in the environment are referred to as photosynthetic acclimation, a process that involves changes in protein content and composition. Considering this definition, acclimation differs from regulation, which involves processes that alter the activity of individual proteins over short-time periods, without changing the abundance of those proteins. The interconnection and overlapping of the short- and long-term photosynthetic responses, which can occur simultaneously or/and sequentially over time, make the study of long-term acclimation to fluctuating light in plants challenging. In this review we identify short-term responses of plants to fluctuating light that could act as sensors and signals for acclimation responses, with the aim of understanding how plants integrate environmental fluctuations over time and tailor their responses accordingly. Mathematical modeling has the potential to integrate physiological processes over different timescales and to help disentangle short-term regulatory responses from long-term acclimation responses. We review existing mathematical modeling techniques for studying photosynthetic responses to fluctuating light and propose new methods for addressing the topic from a holistic point of view.

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Do rapid photosynthetic responses protect maize leaves against photoinhibition under fluctuating light?

Cited by 19 publications

References 30 publications

Leaf photosynthetic and anatomical insights into mechanisms of acclimation in rice in response to long‐term fluctuating light

Leaf photosynthetic and anatomical insights into mechanisms of acclimation in rice in response to long‐term fluctuating light

The photosynthetic response of C₃ and C₄ bioenergy grass species to fluctuating light

A Holistic Approach to Study Photosynthetic Acclimation Responses of Plants to Fluctuating Light

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Do rapid photosynthetic responses protect maize leaves against photoinhibition under fluctuating light?

Cited by 19 publications

References 30 publications

Leaf photosynthetic and anatomical insights into mechanisms of acclimation in rice in response to long‐term fluctuating light

Leaf photosynthetic and anatomical insights into mechanisms of acclimation in rice in response to long‐term fluctuating light

The photosynthetic response of C3 and C4 bioenergy grass species to fluctuating light

A Holistic Approach to Study Photosynthetic Acclimation Responses of Plants to Fluctuating Light

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The photosynthetic response of C₃ and C₄ bioenergy grass species to fluctuating light