TY - JOUR AU - Iqbal, Nadeem AU - Ördög, Attila AU - Koprivanacz, Péter AU - Kukri, András AU - Czékus, Zalán AU - Poór, Péter TI - Salicylic acid- and ethylene-dependent effects of the ER stress-inducer tunicamycin on the photosynthetic light reactions in tomato plants JF - JOURNAL OF PLANT PHYSIOLOGY J2 - J PLANT PHYSIOL VL - 295 PY - 2024 PG - 8 SN - 0176-1617 DO - 10.1016/j.jplph.2024.154222 UR - https://m2.mtmt.hu/api/publication/34802566 ID - 34802566 LA - English DB - MTMT ER - TY - JOUR AU - Iqbal, Nadeem AU - Poór, Péter TI - Plant Protection by Tannins Depends on Defence-Related Phytohormones JF - JOURNAL OF PLANT GROWTH REGULATION J2 - J PLANT GROWTH REGUL PY - 2024 SN - 0721-7595 DO - 10.1007/s00344-024-11291-1 UR - https://m2.mtmt.hu/api/publication/34802564 ID - 34802564 AB - Plants produce a wide variety of secondary metabolites to sustain and protect themselves against a wide range of stresses. Among these metabolites, tannins are one of the most abundant polyphenolic compounds, accounting for 25% of the dry weight of leaves, roots and bark of woody plants, but are also abundant in flowering and seed-producing plants. The presence of tannins in these organs serves to protect plants against herbivorous and pathogenic attack through their antidigestive and antimicrobial properties. In addition, tannins play a role in regulating plant growth and development by inhibiting the consumption of unripe fruits due to their astringency. In addition, several studies have also revealed various roles of them under environmental stresses. Tannins can be classified into condensed tannins (CTs), hydrolysable tannins (HTs) and phlorotannins. They are synthesised in plants via the acetate–malonate and shikimic acid pathways. Their accumulation is regulated by several transcription factors during normal development and under different stress conditions. Despite their multiple roles in plant life, information on the regulation of tannin metabolism by defence-related phytohormones is very limited. To cope with biotic and abiotic stresses, plant responses are regulated by defence-related phytohormones such as salicylic acid (SA), jasmonic acid (JA), ethylene (ET) and abscisic acid (ABA), which act as regulators of tannin production under adverse conditions. This review focuses on tannin production, moreover its occurrence, defence potential and regulation by phytohormones under different environmental and biotic stresses, based on the most recent and relevant data. LA - English DB - MTMT ER - TY - JOUR AU - Nazir, Faroza AU - Poór, Péter AU - Gupta, Ravi AU - Kumari, Sarika AU - Nawaz, Kashif AU - Khan, M. Iqbal R. TI - Plant hormone ethylene: A leading edge in conferring drought stress tolerance JF - PHYSIOLOGIA PLANTARUM J2 - PHYSIOL PLANTARUM VL - 176 PY - 2024 IS - 1 PG - 21 SN - 0031-9317 DO - 10.1111/ppl.14151 UR - https://m2.mtmt.hu/api/publication/34479762 ID - 34479762 AB - Agricultural sufficient productivity is of paramount importance for ensuring food security and conserving soil health to support the world's agronomy. Climatic abruptions have been emerging as one of the most nerve‐pressing issues for the sustainment of the planet Earth in the twenty‐first century. Among the various environmental constraints, drought stress stands out as a potent factor restricting crop growth and productivity. It triggers a myriad of intricate responses in plants to combat the underlying stress‐mediated adversities. Gaining a comprehensive understanding of the key physiological and molecular mechanisms that enable plants to withstand drought stress is crucial for developing effective strategies to enhance crop resilience. Ethylene, a gaseous plant hormone, influences the adaptive measures adopted by plants subjected to drought stress by regulating the drought stress‐mediated signal transduction‐associated responses. The present review article provides an in‐depth understanding of the critical roles of ethylene in enhancing plants' ability to restrain the severity of drought stress. It also highlights the significance of ethylene signaling components in regulating plant survival and drought stress tolerance. Additionally, we have illustrated the additive and antagonistic interactions of ethylene with other plant growth regulators, which instigate the tolerance responses. Conclusively, this review emphasizes the significance of complex networks involved in ethylene‐mediated drought tolerance, providing valuable insights for future research and uncovering novel studies in the field of ethylene biology. LA - English DB - MTMT ER - TY - JOUR AU - Iqbal, Nadeem AU - Czékus, Zalán AU - Ördög, Attila AU - Poór, Péter TI - Fusaric acid-evoked oxidative stress affects plant defence system by inducing biochemical changes at subcellular level JF - PLANT CELL REPORTS J2 - PLANT CELL REP VL - 43 PY - 2024 IS - 1 PG - 17 SN - 0721-7714 DO - 10.1007/s00299-023-03084-9 UR - https://m2.mtmt.hu/api/publication/34442303 ID - 34442303 AB - Fusaric acid (FA) is one of the most harmful phytotoxins produced in various plant–pathogen interactions. Fusarium species produce FA as a secondary metabolite, which can infect many agronomic crops at all stages of development from seed to fruit, and FA production can further compromise plant survival because of its phytotoxic effects. FA exposure in plant species adversely affects plant growth, development and crop yield. FA exposure in plants leads to the generation of reactive oxygen species (ROS), which cause cellular damage and ultimately cell death. Therefore, FA-induced ROS accumulation in plants has been a topic of interest for many researchers to understand the plant–pathogen interactions and plant defence responses. In this study, we reviewed the FA-mediated oxidative stress and ROS-induced defence responses of antioxidants, as well as hormonal signalling in plants. The effects of FA phytotoxicity on lipid peroxidation, physiological changes and ultrastructural changes at cellular and subcellular levels were reported. Additionally, DNA damage, cell death and adverse effects on photosynthesis have been explained. Some possible approaches to overcome the harmful effects of FA in plants were also discussed. It is concluded that FA-induced ROS affect the enzymatic and non-enzymatic antioxidant system regulated by phytohormones. The effects of FA are also associated with other photosynthetic, ultrastructural and genotoxic modifications in plants. LA - English DB - MTMT ER - TY - JOUR AU - Czékus, Zalán AU - Milodanovic, Dávid AU - Koprivanacz, Péter AU - Bela, Krisztina AU - López-Climent, María F. AU - Gómez-Cadenas, Aurelio AU - Poór, Péter TI - The role of salicylic acid on glutathione metabolism under endoplasmic reticulum stress in tomato JF - PLANT PHYSIOLOGY AND BIOCHEMISTRY J2 - PLANT PHYSIOL BIOCH (PPB) VL - 205 PY - 2023 PG - 11 SN - 0981-9428 DO - 10.1016/j.plaphy.2023.108192 UR - https://m2.mtmt.hu/api/publication/34397467 ID - 34397467 N1 - Department of Plant Biology, University of Szeged, Szeged, Hungary Department of Biology, Biochemestry and Natural Sciences, Universitat Jaume I, Castello de la Plana, 12071, Spain Export Date: 8 February 2024 CODEN: PPBIE Correspondence Address: Poór, P.; Department of Plant Biology, Hungary; email: poorpeti@bio.u-szeged.hu Chemicals/CAS: glutathione, 70-18-8; glutathione disulfide, 27025-41-8; glutathione reductase, 9001-48-3; salicylic acid, 63-36-5, 69-72-7; Glutathione; Glutathione Disulfide; Glutathione Reductase; Salicylic Acid Funding details: Emberi Eroforrások Minisztériuma, EMMI Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI, NKFIH FK 124871, OTKA PD131884 Funding details: Szegedi Tudományegyetem, SZTE Funding text 1: This work was supported by grants from the National Research, Development and Innovation Office of Hungary - NKFIH (Grant No. OTKA PD131884 and NKFIH FK 124871 ) and the UNKP-22-4 New National Excellence Programme of the Ministry of Human Capacities and the Open Access Fund of the University of Szeged ( 6428 ). LA - English DB - MTMT ER - TY - CHAP AU - Czékus, Zalán AU - Poór, Péter ED - M., Iqbal R. Khan ED - Noushina, Iqbal ED - Poór, Péter ED - Antonio, Ferrante TI - The role of nitric oxide in systemic responses of plants T2 - Nitric Oxide in Developing Plant Stress Resilience PB - Elsevier Academic Press CY - Amsterdam SN - 9780323916264 PY - 2023 SP - 217 EP - 231 PG - 15 DO - 10.1016/B978-0-323-91209-9.00004-X UR - https://m2.mtmt.hu/api/publication/34392614 ID - 34392614 N1 - Export Date: 21 November 2023 AB - Plants are exposed to various biotic stressors during their life which often leads to a localized cell death termed as hypersensitive response (HR) and induces systemic responses in their distal organs from the infected ones which often promotes the development of systemic acquired resistance (SAR) against secondary pathogen infection. These processes are regulated by various phytohormones, defense-related molecules, and free radicals such as reactive oxygen species (ROS) and nitric oxide (NO). NO acts together with these compounds regulating HR and rapid systemic defense responses of plants such as SAR, as well as taking part in the induced systemic resistance (ISR). In this chapter, the production and transport of NO and its signaling functions are summarized and shown in the acquired- or induced-, rapid- and long-term systemic responses of plants. © 2023 Elsevier Inc. All rights reserved. LA - English DB - MTMT ER - TY - CONF AU - Csiszár, Jolán AU - Riyazuddin, Riyazuddin AU - Szepesi, Ágnes AU - Anna, Farkas AU - Milodanovic, Dávid AU - Horváth, Edit AU - Poór, Péter AU - Gémes, Katalin AU - László, Szabados AU - Gábor, Rigó AU - Fehér, Attila AU - Bela, Krisztina ED - Szepesi, Ágnes ED - Janda, Tibor TI - Polyamines in Arabidopsis glutathione peroxidase mutants: Function as antioxidants or growth regulators? T2 - 3rd Plant Polyamine Research Workshop. Program and Abstracts. SN - 9786150190716 PY - 2023 SP - 22 EP - 22 PG - 1 UR - https://m2.mtmt.hu/api/publication/34212975 ID - 34212975 LA - English DB - MTMT ER - TY - CHAP AU - Pelsőczi, Alina Beatrix AU - Czékus, Zalán AU - Kukri, András AU - Kovács, Klára Terézia AU - Tóth, Beáta AU - Meszlényi, Tamás János AU - Bartók, Tibor AU - Gallé, Ágnes AU - Poór, Péter ED - Hagymási, Krisztina ED - Janda, Tibor ED - Pál, Magda ED - Poór, Péter ED - Szalai, Gabriella TI - Fumonizineknek kitett búzakalászok védekezési reakcióinak vizsgálata [Investigation of the defence responses of wheat ears exposed to fumonisins] T2 - A Magyar Szabadgyökkutató Társaság XII. Kongresszusa PB - Agrártudományi Kutatóközpont, Mezőgazdasági Intézet CY - Martonvásár SN - 9786156203021 PY - 2023 SP - 50 EP - 50 PG - 1 UR - https://m2.mtmt.hu/api/publication/34124967 ID - 34124967 LA - English DB - MTMT ER - TY - CHAP AU - Iqbal, Nadeem AU - Czékus, Zalán AU - Ördög, Attila AU - Poór, Péter ED - Hagymási, Krisztina ED - Janda, Tibor ED - Pál, Magda ED - Poór, Péter ED - Szalai, Gabriella TI - Investigation of ethylene-regulated ROS production and detoxification in tomato under fusaric acid exposure. Az etilén által szabályozott ROS termelés és lebontás vizsgálata paradicsomban fuzársav expozíció alatt TS - Az etilén által szabályozott ROS termelés és lebontás vizsgálata paradicsomban fuzársav expozíció alatt T2 - A Magyar Szabadgyökkutató Társaság XII. Kongresszusa PB - Agrártudományi Kutatóközpont, Mezőgazdasági Intézet CY - Martonvásár SN - 9786156203021 PY - 2023 SP - 48 UR - https://m2.mtmt.hu/api/publication/34124953 ID - 34124953 LA - English DB - MTMT ER - TY - CHAP AU - Kukri, András AU - Czékus, Zalán AU - Iqbal, Nadeem AU - Zsindely, Nóra AU - Bodai, László AU - Gallé, Ágnes AU - Galgóczi, László Norbert AU - Ördög, Attila AU - Poór, Péter ED - Hagymási, Krisztina ED - Janda, Tibor ED - Pál, Magda ED - Poór, Péter ED - Szalai, Gabriella TI - Effects of nocturnal red light treatment on tomato plants for the control of Botrytis cinerea. Éjszakai vörös fény kezelés hatása paradicsom növények Botrytis cinerea elleni védekezésére TS - Éjszakai vörös fény kezelés hatása paradicsom növények Botrytis cinerea elleni védekezésére T2 - A Magyar Szabadgyökkutató Társaság XII. Kongresszusa PB - Agrártudományi Kutatóközpont, Mezőgazdasági Intézet CY - Martonvásár SN - 9786156203021 PY - 2023 SP - 38 EP - 38 PG - 1 UR - https://m2.mtmt.hu/api/publication/34124946 ID - 34124946 LA - English DB - MTMT ER -