OOIR: Observatory of International Research

Papers

(The median citation count of Photosynthetica is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-06-01 to 2025-06-01.)

Article	Citations
Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment	32
Prof. Dr. Klaus Kloppstech - Always ahead, but never pushing forward. Impressive research without a tendency to overstatement	28
The changes of PSII supercomplex stoichiometry in egy1 mutants are related to chlorophyll b deficiency	24
Role of beneficial elements in plants: implications for the photosynthetic process	23
The melatonin receptor CAND2 is involved in the regulation of photosynthesis and chloroplast gene expression in Arabidopsis thaliana under photooxidative stress	23
Excess energy and photosynthesis: responses to seasonal water limitations in co-occurring woody encroachers of the semi-arid Southern Great Plains	22
Photosynthetic performance of walnut leaves during the occurrence of leaf scorch	21
HISTORY & BIOGRAPHY Dr. Autar Krishen Mattoo (1943-2024): an outstanding plant biologist with a focus on photosynthesis	20
Influence of phytochromes on microRNA expression, phenotype, and photosynthetic activity in A. thaliana phy mutants under light with different spectral composition	19
Evaluation of the relationship between color-tuning of photosynthetic excitons and thermodynamic stability of light-harvesting chromoproteins	16
Both uniconazole and 5-aminolevulinic acid increase maize (Zea mays L.) yield by changing its ear morphology and increasing photosynthetic efficiency and antioxidants in saline-alkali land	16
Changes in the photosynthetic response of lettuce exposed to toxic element multicontamination under hydroponic conditions	15
Mitochondrial alternative oxidase pathway acts as an electron sink during photosynthetic induction in Rumex K-1 leaves	12
Short-term photoacclimation and photoregulation strategies of Sargassum horneri in response to temperature and light	12
Honoring Hartmut Karl Lichtenthaler, innovative pioneer of photosynthesis, on his 90<sup>th</sup> birthday	11
Photosystem II efficiency in response to diurnal and seasonal variations in photon flux density and air temperature for green, yellow-green, and purple-leaved cultivars of sweet potato [Ipomoea bata	11
Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F<sub>0</sub> rise method	11
Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions	11
Sensing and classification of rice (Oryza sativa L.) drought stress levels based on chlorophyll fluorescence	10
Response of physiological characteristics and grain yield of winter wheat varieties to long-term heat stress at anthesis	10
Upregulation of the mitochondrial alternative oxidase pathway improves PSII function and photosynthetic electron transport in tomato seedlings under chilling stress	10
Single-cell microfluidics in combination with chlorophyll a fluorescence measurements to assess the lifetime of the Chlamydomonas PSBO protein	10
Photosynthesis and hydrogen energy for sustainability: harnessing the sun for a greener future	10
Biochemical, gas exchange, and chlorophyll fluorescence analysis of maize genotypes under drought stress reveals important insights into their interaction and homeostasis	10
EDITORIAL	9

Crop responses and management strategies under shade and drought stress	9
Exogenous calcium-alleviating effect on sodium salt-induced phytotoxicity associated with changes in photosynthetic characteristics of wheat seedlings	9
Improving salt tolerance of bean (Phaseolus vulgaris L.) with hydrogen sulfide	8
Effect of application of iron (Fe) and α-ketoglutaric acid on growth, photosynthesis, and Fe content in fragrant rice seedlings	8
Ultrastructure, adaptability, and alleviation mechanisms of photosynthetic apparatus in plants under waterlogging: A review	8
Intraspecific variation in photosynthetic efficiency in soybean (Glycine max L.) varieties towards solar ultraviolet radiations	8
In appreciation of an ingenious scientist and a great friend: Győző Garab	7
Fatty acid composition and cpDNA content in Arabidopsis thaliana mutants deprived of EGY1 protease	7
Heat-induced F<sub>0</sub>-fluorescence rise is not an indicator of severe tissue necrosis in thermotolerance assays of young and mature leaves of a tropical tree species, Calophyllum inop	7
EDITORIAL	7
László Mustárdy (1945-2022)	7
Photosynthetic reaction center/graphene bio-hybrid for low-power optoelectronics	7
Changes in ultrastructure, photosynthetic abilities, and secondary metabolite due to individual and interactive effects of chromium and ultraviolet-B radiation in Adhatoda vasica	7
Photosynthetic acclimation to temperature is affected by night temperature in Zea mays	7
Light quality, oxygenic photosynthesis and more	6
Systematic salt tolerance-related physiological mechanisms of wild soybean and their role in the photosynthetic activity and Na<sup>+</sup> distribution of grafted soybean plants	6
Leaf structure and photosynthesis in Populus alba under naturally fluctuating environments	6
Influence of nitrogen and phosphorus additions on parameters of photosynthesis and chlorophyll fluorescence in Cyclocarya paliurus seedlings	6
Cold plasma treatment influences the physiological parameters of millet	6
The photosynthetic function analysis for leaf photooxidation in rice	6
Impact of additional green light and deficit in cryptochrome 1 on photosynthetic activity and pro-/antioxidant balance in Arabidopsis thaliana	6
Response of upland cotton (Gossypium hirsutum L.) leaf chlorophyll content to high heat and low-soil water in the Arizona low desert	6
Changes in grapevine berry skin photochemistry may support metabolic responses to postharvest treatment by ultraviolet light	5
Effects of source-sink alteration by pruning on physiological parameters and fruit production of Rosa roxburghii Tratt. on the Yunnan-Guizhou Plateau in China	5
Happy birthday, Govindjee!	5
Relative importance of chlorophyll metabolic genes for light-induced greening of potato tubers	5
Chlorophyll measurements in Alstroemeria sp. using SPAD-502 meterand the color space CIE Lab*, and its validation in foliar senescence	5
Blue light dosage affects photosynthesis, chlorophyll, and antioxidant properties of Mesembryanthemum crystallinum	5
Effects of red to far-red light ratio on growth and photosynthetic characteristics of tomato seedlings under calcium nitrate stress	5
Effects of exposure of the leaf abaxial surface to direct solar radiation on the leaf anatomical traits and photosynthesis of soybean (Glycine max L.) in dryland farming systems	5
Changes in the photosynthetic performance, the activity of enzymes of nitrogen metabolism, and proline content in the leaves of wheat plants after exposure to low CO<sub>2</sub> concentra	5
PSII photochemistry responses to drought stress in autochthonous and modern sweet cherry cultivars	5
The role of photosynthetic activity in the regulation of flg22-induced local and systemic defence reaction in tomato	5
Regulation of photosynthesis and water-use efficiency in pima and upland cotton species subjected to drought and recovery	5
Evidence of photosynthetic acclimation to self-shading in sugarcane canopies	5
Potential mechanisms for the rapid post-drought reversal of ABA-induced stomatal closure by melatonin, 5-aminolevulinic acid, and brassinosteroids	5
On the discovery of the two-light effect on chlorophyll a fluorescence: Quenching of chlorophyll a fluorescence of Photosystem II by Photosystem I light	5
Light intensity affects tolerance of pyrene in Chlorella vulgaris and Scenedesmus acutus	5
Assessing shade stress in leaves of turf-type tall fescue (Festuca arundinacea Schreb.)	4
Phosphorus-deficiency stress in cucumber (Cucumis sativus L.) plants: early detection based on chosen physiological parameters and statistical analyses	4
Photosystems under high light stress: throwing light on mechanism and adaptation	4
Towards the quantitative and physically-based interpretation of solar-induced vegetation fluorescence retrieved from global imaging	4
Vapor-pressure-deficit-controlled temperature response of photosynthesis in tropical trees	4
Dependence of the rate-limiting steps in the dark-to-light transition of photosystem II on the lipidic environment of the reaction center	4
Comparative study of photosynthetic capacity in lower leaves in the canopy of dwarf and semidwarf wheat	4
Vertical profile of photosynthetic CO<sub>2</sub> response within rice canopy	4
George C. Papageorgiou and the protective role of glycine betaine in activation and stabilization of the oxygen-evolving photosystem II complex	4
The story of my life into and through the science of photosynthesis: a personal perspective	3
An open Internet of Things (IoT)-based framework for feedback controlof photosynthetic activities	3
Tribute to Jean Lavorel (1928-2021), an outstanding experimenter and a brilliant theorist of photosynthesis	3

Mitigative effect of 6-benzyladenine on photosynthetic capacity and leaf ultrastructure of maize seedlings under waterlogging stress	3
LHCII - a protein like a 'Swiss Army knife' with many mechanisms and functions	3
Professor Giorgio Forti	3
The physiological responses of critically endangered species Ardisia gigantifolia Stapf (Primulaceae) to different light intensities	3
Effect of UV exclusion and AMF inoculation on photosynthetic parameters of Glycine max	3
Biochemical and photosystem characteristics of wild-type and Chl b-deficient mutant in tree peony (Paeonia suffruticosa)	3
Protection of nitrogenase from photosynthetic O<sub>2</sub> evolution in Trichodesmium: methodological pitfalls and advances over 30 years of research	3
A comparison of chlorophyll fluorescence transient measurements, using Handy PEA and FluorPen fluorometers	3
The resistance of Solanum lycopersicum photosynthetic apparatus to high-intensity blue light is determined mainly by the cryptochrome 1 content	3
Variability of the photosynthetic machinery tolerance when imposed to rapidly or slowly imposed dehydration in native Mediterranean plants	3
Effects of sowing methods and nitrogen rates on photosynthetic characteristics, yield, and quality of winter wheat	3
Morphophysiological responses of Theobroma cacao L. rootstocks to flooding and post-flooding conditions	3
Ascorbic acid is involved in melatonin-induced salinity tolerance of maize (Zea mays L.) by regulating antioxidant and photosynthetic capacities	3
EDITORIAL	3
The effects of nitrogen application on the growth, photosynthesis, and antioxidant activity of Amaranthus viridis	3
Chloroplast antioxidant reactions associated with zinc-alleviating effects on iron toxicity in wheat seedlings	2
Variation in leaf mesophyll anatomy of fern species imposes significant effects on leaf gas exchange, light capture, and leaf hydraulic conductance	2
Sixty years of research on photosynthesis: a personal scientific autobiography	2
Photosynthetic mechanism of high yield under an improved wide-narrow row planting pattern in maize	2
Contents of photosynthetic pigments and ratios of chlorophyll a/b and chlorophylls to carotenoids (a+b)/(x+c) in C<sub>4</sub> plants as compared to C<sub>3</sub> plants	2
Professor Charles Percival Whittingham (1922-2011)	2
Photoprotective roles of ascorbate and PSII cyclic electron flow in the response of the seagrass Zostera marina to oxygen-evolving complex photoinactivation	2
Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation in Glechoma longituba plants	2
Influence of additional far-red light on the photosynthetic and growth parameters of lettuce plants and the resistance of the photosynthetic apparatus to high irradiance	2
Ethylene-dependent effects of fusaric acid on the photosynthetic activity of tomato plants	2
Chlorophyll and growth performance of biological sand-fixing materials inoculated on sandy desert surface	2
Transgenerational effect of UV-B priming on photochemistry and associated metabolism in rice seedlings subjected to PEG-induced osmotic stress	2
Selenium improves wheat antioxidant capacity, photosynthetic capacity, and growth under cadmium stress	2
Impact of salt stress on physiology, leaf mass, and nutrient accumulation in romaine lettuce	2
Intersections: photosynthesis, abiotic stress, and the plant microbiome	2
Application of fast light-readapted plants for measurement of chlorophyll fluorescence and P<sub>700</sub> light absorption with the RLC method	2
Physiological response to low-nitrogen stress and comprehensive evaluation in four rice varieties	2
Light curve parametrization of three rice (Oryza sativa L.) cultivars based on mechanistic models	2
On "P750s" in cyanobacteria: A historical perspective	2
Can chlorophyll fluorescence imaging make the invisible visible?	2
Heterocapsa cf. bohaiensis (dinoflagellate): identification and response to nickel and iron stress revealed through chlorophyll a fluorescence	2
Using chlorophyll fluorescence parameters and antioxidant enzyme activity to assess drought tolerance of spring wheat	2
Downregulated expression of TaDeg7 inhibits photosynthetic activity in bread wheat (Triticum aestivum L.)	2