Nuria Malena Tebez¹, María Cecilia Terrile^1,*, María Elisa Picco¹, María José Iglesias^2,*

BIOCELL, Vol.49, No.10, pp. 1913-1928, 2025, DOI:10.32604/biocell.2025.067833 - 22 October 2025

Abstract In plants, the ubiquitin–proteasome system (UPS) plays a central role in hormonal regulation, including the action of the phytohormone auxin, which orchestrates numerous aspects of growth and development. Auxin modulates redox metabolism and promotes the accumulation of nitric oxide (NO) in various tissues and physiological contexts. NO functions as a redox signaling molecule, exerting its effects in part through the reversible oxidation of cysteine residues via a post-translational modification known as S-nitrosylation. Recent findings highlight a dynamic interplay between S-nitrosylation and the ubiquitination machinery, shaping critical aspects of auxin-mediated plant responses. In this review, we More >

Chen Lin^1,*, Zidan Zhang¹, Zhao Zhang¹, Yuxiang Long¹, Xuwen Shen¹, Jinghao Zhang¹, Youping Wang^1,2,*

Phyton-International Journal of Experimental Botany, Vol.94, No.3, pp. 583-601, 2025, DOI:10.32604/phyton.2025.063086 - 31 March 2025

Abstract Glutathione S-transferases (GSTs) represent a large and diverse enzyme family ubiquitously distributed across the plant kingdom. These proteins catalyze the conjugation of glutathione (GSH) with electrophilic substrates in response to various stress conditions. Beyond their role in stress adaptation, certain GSTs are integral regulators of plant growth and development, contributing to a range of physiological processes. Most GST proteins exhibit dual enzymatic activities, functioning as both transferases and peroxidases, which enables their involvement in diverse cellular processes, including detoxification and stress responses. Recent advancements, particularly in X-ray crystallography, have enabled detailed structural analysis of GST More >

M. Zeki KARİPÇİN¹, Behcet İNAL^2,*

Phyton-International Journal of Experimental Botany, Vol.92, No.11, pp. 3177-3193, 2023, DOI:10.32604/phyton.2023.030979 - 24 October 2023

Abstract Due to climate change, it is necessary to develop plant varieties that are resilient to climate conditions and resistant to abiotic and biotic stresses. The use of microalgae, which are microorganisms that contain carbohydrates, proteins, lipids, and vitamins, against drought tolerance is a new approach. The aim of the current study was to determine the drought-related mechanisms in the conomon melon genotype and develop drought-tolerant melon cultivars. Morphological, physiological, pomological, and molecular analyses were carried out on the algae-treated genotypes. It has been determined that commercial algae application provides the best results in leaf temperature,… More >

Yue Jin¹, Lulu Zhi¹, Xin Tang¹, Yilin Chen¹, John T. Hancock², Xiangyang Hu^1,*

Phyton-International Journal of Experimental Botany, Vol.92, No.8, pp. 2211-2225, 2023, DOI:10.32604/phyton.2023.026595 - 25 June 2023

Abstract Gamma-aminobutyric acid (GABA) is a ubiquitous four-carbon non-protein amino acid that is involved in various physiological processes of plant growth and development, such as root architecture, stem elongation, leaf senescence, pollen tube growth, fruit ripening, and seed germination. GABA is also related to plant stress responses, such as drought, salt, cold, and heat stresses. Regulation of GABA in plant stress responses is complex and involves multiple signaling pathways, including calcium and hormone signaling. This paper systematically reviews the synthesis, metabolic pathways and regulatory role of GABA in plants, which will provide new insights into the More >

LINGJIAO FAN¹, DAN SONG¹, YINGWEI KHOO², MENGMENG WU¹, TENGFEI XU¹, XIAOLI ZHAO¹, HONGQING WANG¹

BIOCELL, Vol.46, No.1, pp. 263-273, 2022, DOI:10.32604/biocell.2022.016306 - 28 September 2021

Abstract

Strawberry mottle virus (SMoV) and strawberry vein banding virus (SVBV) cause diseases on strawberry plants, but the effect of coinfection of SMoV and SVBV on the growth, development, and defense system of strawberry (Fragaria × ananassa Duchesne) remains unknown. We investigated the effect of SMoV and SVBV co-infection on strawberry cultivar ‘Benihope’. The results showed that stem diameter, leaf size, leaf number, relative chlorophyll content, total chlorophyll content, photosynthetic parameters, and stomatal aperture of SMoV and SVBV co-infected strawberry (VIS) plants were in a weaker level than uninfected control plants, indicating that viruses inhibited the growth and

… More >

Nong Zhou^1,2, Lingfeng Xu¹, Min Yang², Dongqin Guo¹, Qiuxia Gan, Jingjing Zhao^1,*

Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 747-759, 2021, DOI:10.32604/phyton.2021.014858 - 30 March 2021

Abstract A field experiment was conducted to determine the effects of two commercial strains composed of mulple arbuscular mycorrhizal fungi (AMF) species on plant growth, antioxidant capacity, and medicine quality of Paris polyphylla var. yunnanensis in three subtropical soils from Wanzhou, Anshun and Baoshan in fields. The results showed that AMF inoculation enhanced the fungal colonization rate and activities of both succinate dehydrogenase and alkaline phosphatase, thereby, enhancing the mycorrhizal viability of P. polyphylla var. yunnanensis. The concentrations of photosynthetic pigments (chlorophyll a, b, a+b and carotenoids), soluble sugar, soluble protein and photosynthetic capacity were higher in AMF-inoculated plants than in More >

Orroño DI, RS Lavado^*

Phyton-International Journal of Experimental Botany, Vol.78, pp. 75-82, 2009, DOI:10.32604/phyton.2009.78.075

Abstract Ornamental plants have been proposed for growing in heavy metal (HM) contaminated soils, and also for phytoremediation. We evaluated (1) biomass production and (2) HM accumulation in Pelargonium hortorum. Plants were grown for 16 weeks on HM (cadmium, chromium, copper, lead, nickel and zinc) enriched soils. Treatments were i) control, non-enriched soil, ii) medium concentration treatment, and iii) high concentration treatment. Four destructive harvests were carried out, and roots, stems, leaves, and flowers were analyzed each time. Concentrations of HM were determined using ICP. Significant reductions in biomass production were observed in HM-enriched soils compared with More >