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 2021-05-01 to 2025-05-01.)

Article	Citations
Adaptive photosynthetic strategies of the invasive plant Sphagneticola trilobata and its hybrid to a low-light environment	30
Prof. Dr. Klaus Kloppstech - Always ahead, but never pushing forward. Impressive research without a tendency to overstatement	28
Role of beneficial elements in plants: implications for the photosynthetic process	24
The melatonin receptor CAND2 is involved in the regulation of photosynthesis and chloroplast gene expression in Arabidopsis thaliana under photooxidative stress	22
The changes of PSII supercomplex stoichiometry in egy1 mutants are related to chlorophyll b deficiency	22
Photosynthetic performance of walnut leaves during the occurrence of leaf scorch	21
Excess energy and photosynthesis: responses to seasonal water limitations in co-occurring woody encroachers of the semi-arid Southern Great Plains	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
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	15
Changes in the photosynthetic response of lettuce exposed to toxic element multicontamination under hydroponic conditions	15
Evaluation of the relationship between color-tuning of photosynthetic excitons and thermodynamic stability of light-harvesting chromoproteins	15
Honoring Hartmut Karl Lichtenthaler, innovative pioneer of photosynthesis, on his 90<sup>th</sup> birthday	11
Short-term photoacclimation and photoregulation strategies of Sargassum horneri in response to temperature and light	11
Biochemical, gas exchange, and chlorophyll fluorescence analysis of maize genotypes under drought stress reveals important insights into their interaction and homeostasis	10
Evaluation of visible-light wavelengths that reduce or oxidize the plastoquinone pool in green algae with the activated F<sub>0</sub> rise method	10
Single-cell microfluidics in combination with chlorophyll a fluorescence measurements to assess the lifetime of the Chlamydomonas PSBO protein	10
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	10
Improvement in the photoprotective capability benefits the productivity of a yellow-green wheat mutant in N-deficient conditions	10
Upregulation of the mitochondrial alternative oxidase pathway improves PSII function and photosynthetic electron transport in tomato seedlings under chilling stress	10
Sensing and classification of rice (Oryza sativa L.) drought stress levels based on chlorophyll fluorescence	10
Mitochondrial alternative oxidase pathway acts as an electron sink during photosynthetic induction in Rumex K-1 leaves	10
Crop responses and management strategies under shade and drought stress	10
Response of physiological characteristics and grain yield of winter wheat varieties to long-term heat stress at anthesis	9
Photosynthesis and hydrogen energy for sustainability: harnessing the sun for a greener future	9

Exogenous calcium-alleviating effect on sodium salt-induced phytotoxicity associated with changes in photosynthetic characteristics of wheat seedlings	9
Effect of application of iron (Fe) and α-ketoglutaric acid on growth, photosynthesis, and Fe content in fragrant rice seedlings	9
Intraspecific variation in photosynthetic efficiency in soybean (Glycine max L.) varieties towards solar ultraviolet radiations	8
Improving salt tolerance of bean (Phaseolus vulgaris L.) with hydrogen sulfide	8
Ultrastructure, adaptability, and alleviation mechanisms of photosynthetic apparatus in plants under waterlogging: A review	8
EDITORIAL	8
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
László Mustárdy (1945-2022)	7
Light quality, oxygenic photosynthesis and more	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
EDITORIAL	6
Cold plasma treatment influences the physiological parameters of millet	6
Leaf structure and photosynthesis in Populus alba under naturally fluctuating environments	6
Photosynthetic reaction center/graphene bio-hybrid for low-power optoelectronics	6
In appreciation of an ingenious scientist and a great friend: Győző Garab	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
Influence of nitrogen and phosphorus additions on parameters of photosynthesis and chlorophyll fluorescence in Cyclocarya paliurus seedlings	6
Impact of additional green light and deficit in cryptochrome 1 on photosynthetic activity and pro-/antioxidant balance in Arabidopsis thaliana	6
PSII photochemistry responses to drought stress in autochthonous and modern sweet cherry cultivars	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
The role of photosynthetic activity in the regulation of flg22-induced local and systemic defence reaction in tomato	5
Effects of red to far-red light ratio on growth and photosynthetic characteristics of tomato seedlings under calcium nitrate stress	5
Response of upland cotton (Gossypium hirsutum L.) leaf chlorophyll content to high heat and low-soil water in the Arizona low desert	5
Evidence of photosynthetic acclimation to self-shading in sugarcane canopies	5
Relative importance of chlorophyll metabolic genes for light-induced greening of potato tubers	5
The photosynthetic function analysis for leaf photooxidation in rice	5
Light intensity affects tolerance of pyrene in Chlorella vulgaris and Scenedesmus acutus	5
Regulation of photosynthesis and water-use efficiency in pima and upland cotton species subjected to drought and recovery	5
Happy birthday, Govindjee!	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
Changes in grapevine berry skin photochemistry may support metabolic responses to postharvest treatment by ultraviolet light	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
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	4
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
Towards the quantitative and physically-based interpretation of solar-induced vegetation fluorescence retrieved from global imaging	4
Vertical profile of photosynthetic CO<sub>2</sub> response within rice canopy	4
Vapor-pressure-deficit-controlled temperature response of photosynthesis in tropical trees	4
On the discovery of the two-light effect on chlorophyll a fluorescence: Quenching of chlorophyll a fluorescence of Photosystem II by Photosystem I light	4
Comparative study of photosynthetic capacity in lower leaves in the canopy of dwarf and semidwarf wheat	4
Photosystems under high light stress: throwing light on mechanism and adaptation	4
Variability of the photosynthetic machinery tolerance when imposed to rapidly or slowly imposed dehydration in native Mediterranean plants	3
Tribute to Jean Lavorel (1928-2021), an outstanding experimenter and a brilliant theorist of photosynthesis	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
George C. Papageorgiou and the protective role of glycine betaine in activation and stabilization of the oxygen-evolving photosystem II complex	3

EDITORIAL	3
Effect of UV exclusion and AMF inoculation on photosynthetic parameters of Glycine max	3
Protection of nitrogenase from photosynthetic O<sub>2</sub> evolution in Trichodesmium: methodological pitfalls and advances over 30 years of research	3
Mitigative effect of 6-benzyladenine on photosynthetic capacity and leaf ultrastructure of maize seedlings under waterlogging stress	3
Biochemical and photosystem characteristics of wild-type and Chl b-deficient mutant in tree peony (Paeonia suffruticosa)	3
Dependence of the rate-limiting steps in the dark-to-light transition of photosystem II on the lipidic environment of the reaction center	3
The story of my life into and through the science of photosynthesis: a personal perspective	3
The physiological responses of critically endangered species Ardisia gigantifolia Stapf (Primulaceae) to different light intensities	3
Professor Giorgio Forti	3
A comparison of chlorophyll fluorescence transient measurements, using Handy PEA and FluorPen fluorometers	3
An open Internet of Things (IoT)-based framework for feedback controlof photosynthetic activities	3
Chlorophyll and growth performance of biological sand-fixing materials inoculated on sandy desert surface	2
Professor Charles Percival Whittingham (1922-2011)	2
Intersections: photosynthesis, abiotic stress, and the plant microbiome	2
The resistance of Solanum lycopersicum photosynthetic apparatus to high-intensity blue light is determined mainly by the cryptochrome 1 content	2
Downregulated expression of TaDeg7 inhibits photosynthetic activity in bread wheat (Triticum aestivum L.)	2
Photosynthetic mechanism of high yield under an improved wide-narrow row planting pattern in maize	2
Different light-quality colored films affect growth, photosynthesis, chloroplast ultrastructure, and triterpene acid accumulation in Glechoma longituba plants	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
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
Using chlorophyll fluorescence parameters and antioxidant enzyme activity to assess drought tolerance of spring wheat	2
LHCII - a protein like a 'Swiss Army knife' with many mechanisms and functions	2
Photoprotective roles of ascorbate and PSII cyclic electron flow in the response of the seagrass Zostera marina to oxygen-evolving complex photoinactivation	2
Selenium improves wheat antioxidant capacity, photosynthetic capacity, and growth under cadmium stress	2
Sixty years of research on photosynthesis: a personal scientific autobiography	2
Physiological response to low-nitrogen stress and comprehensive evaluation in four rice varieties	2
Can chlorophyll fluorescence imaging make the invisible visible?	2
Transgenerational effect of UV-B priming on photochemistry and associated metabolism in rice seedlings subjected to PEG-induced osmotic stress	2
Impact of salt stress on physiology, leaf mass, and nutrient accumulation in romaine lettuce	2
Application of fast light-readapted plants for measurement of chlorophyll fluorescence and P<sub>700</sub> light absorption with the RLC method	2
The effects of nitrogen application on the growth, photosynthesis, and antioxidant activity of Amaranthus viridis	2
Heterocapsa cf. bohaiensis (dinoflagellate): identification and response to nickel and iron stress revealed through chlorophyll a fluorescence	2
Chloroplast antioxidant reactions associated with zinc-alleviating effects on iron toxicity in wheat seedlings	2
Ethylene-dependent effects of fusaric acid on the photosynthetic activity of tomato plants	2