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Plants
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Plant Photosynthesis in Complex Climates
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Plant Photosynthesis in Complex Climates

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: 30 June 2024 | Viewed by 1065

Special Issue Editor

Dr. Xiaoming Xu

E-Mail Website
Guest Editor
College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
Interests: crop photosynthetic function regulation; foliar photosynthetic protectants under plant adversity conditions; high photosynthetic efficiency varieties of crops
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Climate change uncertainty has prompted higher photosynthetic efficiency and yields that will ensure food security in the coming decades, and genetic manipulation and the reduction of carbon or energy losses could be beneficial for increasing photosynthetic efficiency or crop yield. In complex climates, there is an urgent need to improve key photosynthetic limiting factors such as light use efficiency, stomatal/mesophyll conductance, photorespiration losses, and Rubisco activity, as well as rates of photosynthetic electron transport, nonphotochemical quenching, and carbon metabolism or fixation pathways. In addition, the mechanistic basis for enhancements in photosynthetic adaptation to environmental variables, such as light intensity, temperature, elevated CO2 levels, and others, needs further investigation. As such, this Special Issue of Plants will focus on the physiological bases and strategies to improve plant photosynthesis by targeting these intrinsic photosynthetic limitations as well as external environmental factors.

Dr. Xiaoming Xu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • complex climates
  • electron transport
  • CO2 assimilation
  • higher photosynthetic efficiency
  • genetic regulation for photosynthetic traits
  • strategies to improve plant photosynthesis

Published Papers (1 paper)

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Research

17 pages, 2641 KiB  
Article
Impact of Sodium Nitroprusside on the Photosynthetic Performance of Maize and Sorghum
by Georgi D. Rashkov, Martin A. Stefanov, Ekaterina K. Yotsova, Preslava B. Borisova, Anelia G. Dobrikova and Emilia L. Apostolova
Plants 2024, 13(1), 118; https://doi.org/10.3390/plants13010118 - 31 Dec 2023
Viewed by 818
Abstract
Nitric oxide (NO) is an important molecule in regulating plant growth, development and photosynthetic performance. This study investigates the impact of varying concentrations (0–300 µM) of sodium nitroprusside (SNP, a donor of NO) on the functions of the photosynthetic apparatus in sorghum ( [...] Read more.
Nitric oxide (NO) is an important molecule in regulating plant growth, development and photosynthetic performance. This study investigates the impact of varying concentrations (0–300 µM) of sodium nitroprusside (SNP, a donor of NO) on the functions of the photosynthetic apparatus in sorghum (Sorghum bicolor L. Albanus) and maize (Zea mays L. Kerala) under physiological conditions. Analysis of the chlorophyll fluorescence signals (using PAM and the JIP-test) revealed an increased amount of open PSII reaction centers (qP increased), but it did not affect the number of active reaction centers per PSII antenna chlorophyll (RC/ABS). In addition, the smaller SNP concentrations (up to 150 μM) alleviated the interaction of QA with plastoquine in maize, while at 300 μM it predominates the electron recombination on QAQB−, with the oxidized S2 (or S3) states of oxygen evolving in complex ways in both studied plant species. At the same time, SNP application stimulated the electron flux-reducing end electron acceptors at the PSI acceptor side per reaction center (REo/RC increased up to 26%) and the probability of their reduction (φRo increased up to 20%). An increase in MDA (by about 30%) and H2O2 contents was registered only at the highest SNP concentration (300 µM). At this concentration, SNP differentially affected the amount of P700+ in studied plant species, i.e., it increased (by 10%) in maize but decreased (by 16%) in sorghum. The effects of SNP on the functions of the photosynthetic apparatus were accompanied by an increase in carotenoid content in both studied plants. Additionally, data revealed that SNP-induced changes in the photosynthetic apparatus differed between maize and sorghum, suggesting species specificity for SNP’s impact on plants. Full article
(This article belongs to the Special Issue Plant Photosynthesis in Complex Climates)
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