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Sebastião F, Vaz DC, Pires CL, Cruz PF, Moreno MJ, Brito RMM, Cotrim L, Oliveira N, Costa A, Fonseca A, Rodrigues M, Ispolnov K, Bernardino R, Vieira J. Nutrient-efficient catfish-based aquaponics for producing lamb's lettuce at two light intensities. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:6541-6552. [PMID: 38520251 DOI: 10.1002/jsfa.13478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/13/2024] [Accepted: 03/23/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Aquaponic systems are sustainable processes of managing water and nutrients for food production. An innovate nutrient-efficient catfish-based (Clarias gariepinus) aquaponics system was implemented for producing two cultivars of two leafy vegetables largely consumed worldwide: lamb's lettuce (Valerianella locusta var. Favor and Valerianella locusta var. de Hollande) and arugula (Eruca vesicaria var. sativa and Eruca sativa). Different growing treatments (4 × 2 factorial design) were applied to plants of each cultivar, grown at two light intensities (120 and 400 μmol m-2 s-1). During growth, several morphological characteristics (root length, plant height, leaf number, foliage diameter and biggest leaf length) were measured. At harvest, plants were weighed and examined qualitatively in terms of greenness and health status. Additionally, leaf extracts were obtained and used to determine total phenolic contents, antioxidant capacities, and levels of cytotoxicity to Caco-2 intestinal model cells. RESULTS After a 5-week growth period, both lamb's lettuce cultivars presented high levels of greenness and health status, at both light intensities, particularly the var. de Hollande that also showed higher average performance in terms of plant morphology. In turn, arugula cultivars showed lower levels of greenness and health status, especially the cultivar E. vesicaria var. sativa submitted to direct sunlight during growth. In addition, plant specimens submitted to higher levels of light intensity showed higher contents in antioxidants/polyphenols. Cultivars with a higher content in antioxidants/polyphenols led to higher Caco-2 cell viability. CONCLUSION For successful industrial implementation of the aquaponics technology, different and optimized acclimatizing conditions must be applied to different plant species and cultivars. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Fernando Sebastião
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
| | - Daniela C Vaz
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal
- School of Health Sciences, Polytechnic of Leiria, Leiria, Portugal
| | - Cristiana L Pires
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Pedro F Cruz
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Maria João Moreno
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Rui M M Brito
- Coimbra Chemistry Center, Institute of Molecular Sciences, Department of Chemistry, University of Coimbra, Coimbra, Portugal
| | - Luis Cotrim
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
| | - Nelson Oliveira
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
| | - Ana Costa
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
| | - André Fonseca
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
| | - Maria Rodrigues
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
| | - Kirill Ispolnov
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
| | - Raul Bernardino
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- School of Tourism and Marine Technology, Polytechnic of Leiria, Peniche, Portugal
| | - Judite Vieira
- LSRE-LCM-Laboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials, Polytechnic of Leiria, Leiria, Portugal
- ALiCE-Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- School of Technology and Management, Polytechnic of Leiria, Leiria, Portugal
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Ren Y, Jiang M, Zhu JK, Zhou W, Zhao C. Simultaneous mutations in ITPK4 and MRP5 genes result in a low phytic acid level without compromising salt tolerance in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024. [PMID: 39031490 DOI: 10.1111/jipb.13745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 07/02/2024] [Indexed: 07/22/2024]
Abstract
Generation of crops with low phytic acid (myo-inositol-1,2,3,4,5,6-hexakisphosphate (InsP6)) is an important breeding direction, but such plants often display less desirable agronomic traits. In this study, through ethyl methanesulfonate-mediated mutagenesis, we found that inositol 1,3,4-trisphosphate 5/6-kinase 4 (ITPK4), which is essential for producing InsP6, is a critical regulator of salt tolerance in Arabidopsis. Loss of function of ITPK4 gene leads to reduced root elongation under salt stress, which is primarily because of decreased root meristem length and reduced meristematic cell number. The itpk4 mutation also results in increased root hair density and increased accumulation of reactive oxygen species during salt exposure. RNA sequencing assay reveals that several auxin-responsive genes are down-regulated in the itpk4-1 mutant compared to the wild-type. Consistently, the itpk4-1 mutant exhibits a reduced auxin level in the root tip and displays compromised gravity response, indicating that ITPK4 is involved in the regulation of the auxin signaling pathway. Through suppressor screening, it was found that mutation of Multidrug Resistance Protein 5 (MRP5)5 gene, which encodes an ATP-binding cassette (ABC) transporter required for transporting InsP6 from the cytoplasm into the vacuole, fully rescues the salt hypersensitivity of the itpk4-1 mutant, but in the itpk4-1 mrp5 double mutant, InsP6 remains at a very low level. These results imply that InsP6 homeostasis rather than its overall amount is beneficial for stress tolerance in plants. Collectively, this study uncovers a pair of gene mutations that confer low InsP6 content without impacting stress tolerance, which offers a new strategy for creating "low-phytate" crops.
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Affiliation(s)
- Yuying Ren
- Key Laboratory of Plant Design, National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 200032, China
- University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Mengdan Jiang
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jian-Kang Zhu
- Institute of Advanced Biotechnology and School of Life Sciences, Southern University of Science and Technology, Shenzhen, 518055, China
- Ministry of Agriculture and Rural Affairs Key Laboratory of Gene Editing Technologies, Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024, China
| | - Wenkun Zhou
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Chunzhao Zhao
- Key Laboratory of Plant Design, National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 200032, China
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Luo D, Wang C, Mubeen S, Rehman M, Cao S, Yue J, Pan J, Jin G, Li R, Chen T, Chen P. HcLEA113, a late embryogenesis abundant protein gene, positively regulates drought-stress responses in kenaf. PHYSIOLOGIA PLANTARUM 2024; 176:e14506. [PMID: 39191701 DOI: 10.1111/ppl.14506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 08/12/2024] [Accepted: 08/16/2024] [Indexed: 08/29/2024]
Abstract
Late embryogenesis abundant (LEA) proteins have been widely recognized for their role in various abiotic stress responses in higher plants. Nevertheless, the specific mechanism responsible for the function of LEA proteins in plants has not yet been explored. This research involved the isolation and characterization of HcLEA113 from kenaf, revealing a significant increase in its expression in response to drought stress. When HcLEA113 was introduced into yeast, it resulted in an improved survival rate under drought conditions. Furthermore, the overexpression of HcLEA113 in tobacco plants led to enhanced tolerance to drought stress. Specifically, HcLEA113-OE plants exhibited higher germination rates, longer root lengths, greater chlorophyll content, and higher relative water content under drought stress compared to wild-type (WT) plants, while their relative conductivity was significantly lower than that of WT plants. Further physiological measurements revealed that the proline content, soluble sugars, and antioxidant activities of WT and HcLEA113-OE tobacco leaves increased significantly under drought stress, with greater changes in HcLEA113-OE plants than WT. The increase in hydrogen peroxide (H2O2), superoxide anions (O2 -), and malondialdehyde (MDA) content was significantly lower in HcLEA113-OE lines than in WT plants. Additionally, HcLEA113-OE plants can activate reactive oxygen species (ROS)- and osmotic-related genes in response to drought stress. On the other hand, silencing the HcLEA113 gene through virus-induced gene silencing (VIGS) in kenaf plants led to notable growth suppression when exposed to drought conditions, manifesting as decreased plant height and dry weight. Meanwhile, antioxidant enzymes' activity significantly decreased and the ROS content increased. This study offers valuable insights for future research on the genetic engineering of drought resistance in plants.
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Affiliation(s)
- Dengjie Luo
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
- College of Life Science and Technology, Guangxi University, Nanning, China
| | - Caijin Wang
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
| | - Samavia Mubeen
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
| | - Muzammal Rehman
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
| | - Shan Cao
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
| | - Jiao Yue
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
| | - Jiao Pan
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
| | - Gang Jin
- Guangxi Subtropical Crops Research Institute, Nanning, China
| | - Ru Li
- College of Life Science and Technology, Guangxi University, Nanning, China
| | - Tao Chen
- Guangxi Subtropical Crops Research Institute, Nanning, China
| | - Peng Chen
- College of Agriculture, Guangxi University; Guangxi Key Laboratory of Agro-environment and Agric-products safety; Key Laboratory of Crop Genetic Breeding and Germplasm Innovation, Nanning, China
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Bin Y, Tian M, Xie J, Wang M, Chen C, Jiang A. Bamboo leaf extract treatment alleviates the surface browning of fresh-cut apple by regulating membrane lipid metabolism and antioxidant properties. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:2888-2896. [PMID: 38018275 DOI: 10.1002/jsfa.13181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/11/2023] [Accepted: 11/29/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND The effect of bamboo leaf extract (BLE) on controlling the browning of fresh-cut apple stored at 4 °C was investigated. Browning index, H2 O2 content, O2 - production rate, malondialdehyde (MDA) contents, total phenolic content (TPC) and soluble quinone content (SQC), the activities of polyphenol oxidase (PPO), peroxidase (POD), lipoxygenase (LOX), superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX), DPPH (2,2-diphenyl-2-picryl-hydrazyl) and ABTS [2,2-azinobis(3-ethylbenzothiazoline- 6-sulfonic acid)] radical scavenging activities, and the expression of genes related to browning were all investigated. RESULTS BLE effectively alleviated the surface browning of fresh-cut apple, accompanied by a reduction in SQC, LOX activity, H2 O2 , O2 - production rate and MDA accumulation. Furthermore, BLE treatment enhanced the TPC, enzymatic (SOD, CAT, APX and POD) and non-enzymatic antioxidant activities. Principal component analysis and Pearson correlation analysis found the browning inhibition by BLE is not through the reduction of phenolic substrates and PPO activity. CONCLUSION BLE controls the browning of fresh-cut apple by increasing the antioxidant capacity to scavenge ROS, which could alleviate oxidative damage and maintain the membrane integrity. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yuqi Bin
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Mixia Tian
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Jiani Xie
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Mingyu Wang
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Chen Chen
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Aili Jiang
- College of Life Science, Dalian Minzu University, Dalian, China
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Elakhdar A, El-Naggar AA, Kubo T, Kumamaru T. Genome-wide transcriptomic and functional analyses provide new insights into the response of spring barley to drought stress. PHYSIOLOGIA PLANTARUM 2023; 175:e14089. [PMID: 38148212 DOI: 10.1111/ppl.14089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 09/22/2023] [Accepted: 10/27/2023] [Indexed: 12/28/2023]
Abstract
Drought is a major abiotic stress that impairs the physiology and development of plants, ultimately leading to crop yield losses. Drought tolerance is a complex quantitative trait influenced by multiple genes and metabolic pathways. However, molecular intricacies and subsequent morphological and physiological changes in response to drought stress remain elusive. Herein, we combined morpho-physiological and comparative RNA-sequencing analyses to identify core drought-induced marker genes and regulatory networks in the barley cultivar 'Giza134'. Based on field trials, drought-induced declines occurred in crop growth rate, relative water content, leaf area duration, flag leaf area, concentration of chlorophyll (Chl) a, b and a + b, net photosynthesis, and yield components. In contrast, the Chl a/b ratio, stoma resistance, and proline concentration increased significantly. RNA-sequence analysis identified a total of 2462 differentially expressed genes (DEGs), of which 1555 were up-regulated and 907 were down-regulated in response to water-deficit stress (WD). Comparative transcriptomics analysis highlighted three unique metabolic pathways (carbohydrate metabolism, iron ion binding, and oxidoreductase activity) as containing genes differentially expressed that could mitigate water stress. Our results identified several drought-induced marker genes belonging to diverse physiochemical functions like chlorophyll concentration, photosynthesis, light harvesting, gibberellin biosynthetic, iron homeostasis as well as Cis-regulatory elements. These candidate genes can be utilized to identify gene-associated markers to develop drought-resilient barley cultivars over a short period of time. Our results provide new insights into the understanding of water stress response mechanisms in barley.
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Affiliation(s)
- Ammar Elakhdar
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
- Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
| | - Ahmed A El-Naggar
- Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
| | - Takahiko Kubo
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
| | - Toshihiro Kumamaru
- Institute of Genetic Resources, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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Mei C, Yang J, Mei Q, Jia D, Yan P, Feng B, Mamat A, Gong X, Guan Q, Mao K, Wang J, Ma F. MdNAC104 positively regulates apple cold tolerance via CBF-dependent and CBF-independent pathways. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:2057-2073. [PMID: 37387580 PMCID: PMC10502760 DOI: 10.1111/pbi.14112] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 06/15/2023] [Accepted: 06/17/2023] [Indexed: 07/01/2023]
Abstract
Low temperature is the main environmental factor affecting the yield, quality and geographical distribution of crops, which significantly restricts development of the fruit industry. The NAC (NAM, ATAF1/2 and CUC2) transcription factor (TF) family is involved in regulating plant cold tolerance, but the mechanisms underlying these regulatory processes remain unclear. Here, the NAC TF MdNAC104 played a positive role in modulating apple cold tolerance. Under cold stress, MdNAC104-overexpressing transgenic plants exhibited less ion leakage and lower ROS (reactive oxygen species) accumulation, but higher contents of osmoregulatory substances and activities of antioxidant enzymes. Transcriptional regulation analysis showed that MdNAC104 directly bound to the MdCBF1 and MdCBF3 promoters to promote expression. In addition, based on combined transcriptomic and metabolomic analyses, as well as promoter binding and transcriptional regulation analyses, we found that MdNAC104 stimulated the accumulation of anthocyanin under cold conditions by upregulating the expression of anthocyanin synthesis-related genes, including MdCHS-b, MdCHI-a, MdF3H-a and MdANS-b, and increased the activities of the antioxidant enzymes by promoting the expression of the antioxidant enzyme-encoding genes MdFSD2 and MdPRXR1.1. In conclusion, this study revealed the MdNAC104 regulatory mechanism of cold tolerance in apple via CBF-dependent and CBF-independent pathways.
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Affiliation(s)
- Chuang Mei
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture CropsXinjiang Academy of Agricultural SciencesUrumqiChina
| | - Jie Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
| | - Quanlin Mei
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
| | - Dongfeng Jia
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
| | - Peng Yan
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture CropsXinjiang Academy of Agricultural SciencesUrumqiChina
| | - Beibei Feng
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture CropsXinjiang Academy of Agricultural SciencesUrumqiChina
| | - Aisajan Mamat
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture CropsXinjiang Academy of Agricultural SciencesUrumqiChina
| | - Xiaoqing Gong
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
| | - Qingmei Guan
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
| | - Ke Mao
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
| | - Jixun Wang
- The State Key Laboratory of Genetic Improvement and Germplasm Innovation of Crop Resistance in Arid Desert Regions (Preparation), Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticulture CropsXinjiang Academy of Agricultural SciencesUrumqiChina
| | - Fengwang Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple, College of HorticultureNorthwest A & F UniversityYanglingShaanxiChina
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Wu H, Xie D, Jia P, Tang Z, Shi D, Shui G, Wang G, Yang W. Homeostasis of flavonoids and triterpenoids most likely modulates starch metabolism for pollen tube penetration in rice. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:1757-1772. [PMID: 37221659 PMCID: PMC10440988 DOI: 10.1111/pbi.14073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/24/2023] [Indexed: 05/25/2023]
Abstract
In angiosperms, the timely delivery of sperm cell nuclei by pollen tube (PT) to the ovule is vital for double fertilization. Penetration of PT into maternal stigma tissue is a critical step for sperm cell nuclei delivery, yet little is known about the process. Here, a male-specific and sporophytic mutant xt6, where PTs are able to germinate but unable to penetrate the stigma tissue, is reported in Oryza sativa. Through genetic study, the causative gene was identified as Chalcone synthase (OsCHS1), encoding the first enzyme in flavonoid biosynthesis. Indeed, flavonols were undetected in mutant pollen grains and PTs, indicating that the mutation abolished flavonoid biosynthesis. Nevertheless, the phenotype cannot be rescued by exogenous application of quercetin and kaempferol as reported in maize and petunia, suggesting a different mechanism exists in rice. Further analysis showed that loss of OsCHS1 function disrupted the homeostasis of flavonoid and triterpenoid metabolism and led to the accumulation of triterpenoid, which inhibits significantly α-amylase activity, amyloplast hydrolysis and monosaccharide content in xt6, these ultimately impaired tricarboxylic acid (TCA) cycle, reduced ATP content and lowered the turgor pressure as well. Our findings reveal a new mechanism that OsCHS1 modulates starch hydrolysis and glycometabolism through modulating the metabolic homeostasis of flavonoids and triterpenoids which affects α-amylase activity to maintain PT penetration in rice, which contributes to a better understanding of the function of CHS1 in crop fertility and breeding.
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Affiliation(s)
- Hua‐Mao Wu
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- State Key Laboratory of Vegetable BiobreedingInstitute of Vegetables and Flowers, Chinese Academy of Agricultural SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - Dong‐Jiang Xie
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - Peng‐Fei Jia
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - Zuo‐Shun Tang
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - Dong‐Qiao Shi
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - Guang‐Hou Shui
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
| | - Guo‐Dong Wang
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
- State Key Laboratory of Plant GenomicsInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
| | - Wei‐Cai Yang
- State Key Laboratory of Molecular Developmental BiologyInstitute of Genetics and Developmental Biology, Chinese Academy of SciencesBeijingChina
- College of Advanced Agricultural SciencesUniversity of Chinese Academy of SciencesBeijingChina
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Miyazawa SI, Ujino-Ihara T, Miyama T, Tahara K, Tobita H, Suzuki Y, Nishiguchi M. Different photorespiratory mechanisms in conifer leaves, where peroxisomes have intrinsically low catalase activity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 115:1004-1020. [PMID: 37162489 DOI: 10.1111/tpj.16276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/11/2023]
Abstract
Photorespiration is an essential metabolic mechanism associated with photosynthesis; however, little is known about the photorespiratory pathway of conifer gymnosperms. Metabolite analyses of the leaves of 27 tree species showed that the mean glycerate content in conifer leaves was lower than that in angiosperm leaves. We performed experiments where [13 C]-serine was fed to detached shoots of a conifer (Cryptomeria japonica), via the transpiration stream, and compared the labeling patterns of photorespiratory metabolites with those of an angiosperm tree (Populus nigra), because glycerate is produced from serine via hydroxypyruvate in peroxisomes. In P. nigra, hydroxypyruvate, glycerate and glycine were labeled with 13 C, whereas in C. japonica, glycolate and a non-canonical photorespiratory metabolite, formate, were also labeled, suggesting that an H2 O2 -mediated non-enzymatic decarboxylation (NED) reaction occurs in C. japonica. We analyzed changes in the metabolite contents of leaves kept in the dark and leaves exposed to illuminated photorespiration-promoting conditions: a positive relationship between formate and serine levels in C. japonica implied that the active C1 -metabolism pathway synthesizes serine from formate. Leaf gas exchange analyses revealed that CO2 produced through NED was recaptured by chloroplasts. Database analysis of the peroxisomal targeting signal motifs of an H2 O2 -scavenging enzyme, catalase, derived from various species, including nine coniferous species, as well as analyses of peroxisomal fractions isolated from C. japonica and P. nigra leaves indicated that conifer peroxisomes had less catalase activity. These results suggest that NED and the subsequent C1 metabolism are involved in the photorespiratory pathway of conifer leaves, where peroxisomes have intrinsically low catalase activity.
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Affiliation(s)
- Shin-Ichi Miyazawa
- Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Japan
| | - Tokuko Ujino-Ihara
- Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Japan
| | - Takafumi Miyama
- Department of Disaster Prevention, Meteorology and Hydrology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Japan
| | - Ko Tahara
- Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Japan
| | - Hiroyuki Tobita
- Department of Plant Ecology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Japan
| | - Yuji Suzuki
- Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Japan
| | - Mitsuru Nishiguchi
- Department of Forest Molecular Genetics and Biotechnology, Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Japan
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9
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Verma D, Kaushal N, Balhara R, Singh K. Genome-wide analysis of Catalase gene family reveal insights into abiotic stress response mechanism in Brassica juncea and B. rapa. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111620. [PMID: 36738937 DOI: 10.1016/j.plantsci.2023.111620] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/19/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Environmental stresses affect the yield and productivity of Brassica crops. Catalases are important antioxidant enzymes involved in reducing excess hydrogen peroxide produced by environmental stresses. In the present study, nine and seven CAT family members in two oilseed Brassica species (B. juncea and B. rapa) were identified with complete characterization based on gene and protein structure. Phylogenetic classification categorized CAT proteins into three classes and differentiated the monocot and dicot-specific CAT proteins. Further, the gene and protein characterizations revealed a high degree of conservation across the CAT family members. Differences were observed in the CAT-HEME binding affinity in CAT1, CAT2, and CAT3 isozymes, which could suggest their differential enzyme activities in different conditions. Furthermore, protein-protein interaction with other antioxidant proteins suggested their coordinated role in ROS scavenging mechanisms. Notably, the differential gene expression of BjuCATs and BraCATs and CAT enzyme activities suggested their crucial roles in major abiotic stresses faced by Brassica species. Promoter analysis in BjuCATs and BraCATs suggested the presence of abiotic-stress responsive cis-regulatory elements. Gene regulatory network analysis suggested miRNA and TF mediated stress response in BjuCATs and BraCATs. CAT family screening and characterization in Brassica sp. has established a basic ground for further functional validation in abiotic and heavy-metal stresses which can help in developing stress tolerant crops.
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Affiliation(s)
- Deepika Verma
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
| | - Nishant Kaushal
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
| | - Rinku Balhara
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
| | - Kashmir Singh
- Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India.
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10
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Yuan L, Chen M, Wang L, Sasidharan R, Voesenek LACJ, Xiao S. Multi-stress resilience in plants recovering from submergence. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:466-481. [PMID: 36217562 PMCID: PMC9946147 DOI: 10.1111/pbi.13944] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 09/14/2022] [Accepted: 10/04/2022] [Indexed: 05/03/2023]
Abstract
Submergence limits plants' access to oxygen and light, causing massive changes in metabolism; after submergence, plants experience additional stresses, including reoxygenation, dehydration, photoinhibition and accelerated senescence. Plant responses to waterlogging and partial or complete submergence have been well studied, but our understanding of plant responses during post-submergence recovery remains limited. During post-submergence recovery, whether a plant can repair the damage caused by submergence and reoxygenation and re-activate key processes to continue to grow, determines whether the plant survives. Here, we summarize the challenges plants face when recovering from submergence, primarily focusing on studies of Arabidopsis thaliana and rice (Oryza sativa). We also highlight recent progress in elucidating the interplay among various regulatory pathways, compare post-hypoxia reoxygenation between plants and animals and provide new perspectives for future studies.
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Affiliation(s)
- Li‐Bing Yuan
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Mo‐Xian Chen
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Lin‐Na Wang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
| | - Rashmi Sasidharan
- Plant Stress Resilience, Institute of Environmental BiologyUtrecht UniversityUtrechtThe Netherlands
| | | | - Shi Xiao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Plant Resources, School of Life SciencesSun Yat‐sen UniversityGuangzhouChina
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11
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Jiang W, Ye Q, Wu Z, Zhang Q, Wang L, Liu J, Hu X, Guo D, Wang X, Zhang Z, He H, Hu L. Analysis of CAT Gene Family and Functional Identification of OsCAT3 in Rice. Genes (Basel) 2023; 14:138. [PMID: 36672879 PMCID: PMC9858675 DOI: 10.3390/genes14010138] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/27/2022] [Accepted: 12/31/2022] [Indexed: 01/05/2023] Open
Abstract
Catalase (CAT) is an important antioxidant enzyme in plants that plays a key role in plant growth and stress responses. CAT is usually encoded by a small gene family that has been cloned and functionally studied in some species, such as Arabidopsis, wheat and cucumber, but its specific roles in rice are not clear at present. In this study, we identified three CAT family genes (OsCAT1, OsCAT2 and OsCAT3) in the rice genome and performed a systematic bioinformatics analysis. RT-PCR analysis revealed that OsCAT1-OsCAT3 was primarily expressed in vegetative tissues such as roots, stems and leaves. Since OsCAT3 showed the highest expression level among the three OsCAT genes, we then focused on its related functions. OsCAT3 prokaryotic expression protein has an obvious ability to remove H2O2. The OsCAT3crispr plant was short and had a low survival rate, the leaves were small with brown lesions, and the activities of the CAT, POD and SOD enzymes were significantly reduced. A microarray analysis showed that differentially expressed genes were primarily enriched in toxin metabolism and photosynthesis. This study laid a foundation for further understanding the function of the rice OsCAT gene.
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Affiliation(s)
- Wenxiang Jiang
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Qing Ye
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zheng Wu
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Qiuyun Zhang
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Lianhong Wang
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jialin Liu
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiafei Hu
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Dandan Guo
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiaoqing Wang
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zelin Zhang
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Haohua He
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University, Nanchang 330045, China
| | - Lifang Hu
- College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
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12
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Melicher P, Dvořák P, Šamaj J, Takáč T. Protein-protein interactions in plant antioxidant defense. FRONTIERS IN PLANT SCIENCE 2022; 13:1035573. [PMID: 36589041 PMCID: PMC9795235 DOI: 10.3389/fpls.2022.1035573] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
The regulation of reactive oxygen species (ROS) levels in plants is ensured by mechanisms preventing their over accumulation, and by diverse antioxidants, including enzymes and nonenzymatic compounds. These are affected by redox conditions, posttranslational modifications, transcriptional and posttranscriptional modifications, Ca2+, nitric oxide (NO) and mitogen-activated protein kinase signaling pathways. Recent knowledge about protein-protein interactions (PPIs) of antioxidant enzymes advanced during last decade. The best-known examples are interactions mediated by redox buffering proteins such as thioredoxins and glutaredoxins. This review summarizes interactions of major antioxidant enzymes with regulatory and signaling proteins and their diverse functions. Such interactions are important for stability, degradation and activation of interacting partners. Moreover, PPIs of antioxidant enzymes may connect diverse metabolic processes with ROS scavenging. Proteins like receptor for activated C kinase 1 may ensure coordination of antioxidant enzymes to ensure efficient ROS regulation. Nevertheless, PPIs in antioxidant defense are understudied, and intensive research is required to define their role in complex regulation of ROS scavenging.
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13
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Pan L, Luo Y, Wang J, Li X, Tang B, Yang H, Hou X, Liu F, Zou X. Evolution and functional diversification of catalase genes in the green lineage. BMC Genomics 2022; 23:411. [PMID: 35650553 PMCID: PMC9158360 DOI: 10.1186/s12864-022-08621-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/09/2022] [Indexed: 11/10/2022] Open
Abstract
Background Catalases (CATs) break down hydrogen peroxide into water and oxygen to prevent cellular oxidative damage, and play key roles in the development, biotic and abiotic stresses of plants. However, the evolutionary relationships of the plant CAT gene family have not been systematically reported. Results Here, we conducted genome-wide comparative, phylogenetic, and structural analyses of CAT orthologs from 29 out of 31 representative green lineage species to characterize the evolution and functional diversity of CATs. We found that CAT genes in land plants were derived from core chlorophytes and detected a lineage-specific loss of CAT genes in Fabaceae, suggesting that the CAT genes in this group possess divergent functions. All CAT genes were split into three major groups (group α, β1, and β2) based on the phylogeny. CAT genes were transferred from bacteria to core chlorophytes and charophytes by lateral gene transfer, and this led to the independent evolution of two types of CAT genes: α and β types. Ten common motifs were detected in both α and β groups, and β CAT genes had five unique motifs, respectively. The findings of our study are inconsistent with two previous hypotheses proposing that (i) new CAT genes are acquired through intron loss and that (ii) the Cys-343 residue is highly conserved in plants. We found that new CAT genes in most higher plants were produced through intron acquisition and that the Cys-343 residue was only present in monocots, Brassicaceae and Pp_CatX7 in P. patens, which indicates the functional specificity of the CATs in these three lineages. Finally, our finding that CAT genes show high overall sequence identity but that individual CAT genes showed developmental stage and organ-specific expression patterns suggests that CAT genes have functionally diverged independently. Conclusions Overall, our analyses of the CAT gene family provide new insights into their evolution and functional diversification in green lineage species. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08621-6.
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14
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Al‐Hajaya Y, Karpinska B, Foyer CH, Baker A. Nuclear and peroxisomal targeting of catalase. PLANT, CELL & ENVIRONMENT 2022; 45:1096-1108. [PMID: 35040158 PMCID: PMC9305541 DOI: 10.1111/pce.14262] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 06/14/2023]
Abstract
Catalase is a well-known component of the cellular antioxidant network, but there have been conflicting conclusions reached regarding the nature of its peroxisome targeting signal. It has also been reported that catalase can be hijacked to the nucleus by effector proteins of plant pathogens. Using a physiologically relevant system where native untagged catalase variants are expressed in a cat2-1 mutant background, the C terminal most 18 amino acids could be deleted without affecting activity, peroxisomal targeting or ability to complement multiple phenotypes of the cat2-1 mutant. In contrast, converting the native C terminal tripeptide PSI to the canonical PTS1 sequence ARL resulted in lower catalase specific activity. Localisation experiments using split superfolder green fluorescent protein revealed that catalase can be targeted to the nucleus in the absence of any pathogen effectors, and that C terminal tagging in combination with alterations of the native C terminus can interfere with nuclear localisation. These findings provide fundamental new insights into catalase targeting and pave the way for exploration of the mechanism of catalase targeting to the nucleus and its role in non-infected plants.
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Affiliation(s)
- Yousef Al‐Hajaya
- Centre for Plant Sciences and School of Molecular and Cellular BiologyUniversity of LeedsLeedsUK
- Present address:
Department of Laboratory Medical SciencesMutah UniversityKarakJordan
| | - Barbara Karpinska
- Centre for Plant Sciences and School of BiologyUniversity of LeedsLeedsUK
| | - Christine H. Foyer
- Centre for Plant Sciences and School of BiologyUniversity of LeedsLeedsUK
- Present address:
School of Biosciences, College of Life and Environmental SciencesUniversity of BirminghamEdgbastonUK
| | - Alison Baker
- Centre for Plant Sciences and School of Molecular and Cellular BiologyUniversity of LeedsLeedsUK
- Astbury Centre for Structural Molecular BiologyUniversity of LeedsLeedsUK
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15
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Appolloni E, Pennisi G, Zauli I, Carotti L, Paucek I, Quaini S, Orsini F, Gianquinto G. Beyond vegetables: effects of indoor LED light on specialized metabolite biosynthesis in medicinal and aromatic plants, edible flowers, and microgreens. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:472-487. [PMID: 34462916 PMCID: PMC9292972 DOI: 10.1002/jsfa.11513] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/08/2021] [Accepted: 08/30/2021] [Indexed: 05/11/2023]
Abstract
Specialized metabolites from plants are important for human health due to their antioxidant properties. Light is one of the main factors modulating the biosynthesis of specialized metabolites, determining the cascade response activated by photoreceptors and the consequent modulation of expressed genes and biosynthetic pathways. Recent developments in light emitting diode (LED) technology have enabled improvements in artificial light applications for horticulture. In particular, the possibility to select specific spectral light compositions, intensities and photoperiods has been associated with altered metabolite content in a variety of crops. This review aims to analyze the effects of indoor LED lighting recipes and management on the specialized metabolite content in different groups of crop plants (namely medicinal and aromatic plants, microgreens and edible flowers), focusing on the literature from the last 5 years. The literature collection produced a total of 40 papers, which were analyzed according to the effects of artificial LED lighting on the content of anthocyanins, carotenoids, phenols, tocopherols, glycosides, and terpenes, and ranked on a scale of 1 to 3. Most studies applied a combination of red and blue light (22%) or monochromatic blue (23%), with a 16 h day-1 photoperiod (78%) and an intensity greater than 200 μmol m-2 s-1 (77%). These treatment features were often the most efficient in enhancing specialized metabolite content, although large variations in performance were observed, according to the species considered and the compound analyzed. The review aims to provide valuable indications for the definition of the most promising spectral components toward the achievement of nutrient-rich indoor-grown products. © 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Elisa Appolloni
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
| | - Giuseppina Pennisi
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
| | - Ilaria Zauli
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
| | - Laura Carotti
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
| | - Ivan Paucek
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
| | | | - Francesco Orsini
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
| | - Giorgio Gianquinto
- DISTAL – Department of Agricultural and Food SciencesAlma Mater Studiorum University of BolognaBolognaItaly
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16
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Lv Z, Zhang C, Shao C, Liu B, Liu E, Yuan D, Zhou Y, Shen C. Research progress on the response of tea catechins to drought stress. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:5305-5313. [PMID: 34031895 DOI: 10.1002/jsfa.11330] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 05/13/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
Drought stress (DS) is the most important abiotic stress affecting yield and quality of tea worldwide. DS causes oxidative stress to cells due to the accumulation of reactive oxygen species (ROS). As non-enzymatic antioxidants, tea catechins can scavenge excess ROS in response to DS. Further, catechin accumulation contributes to the formation of oxidative polymerization products (e.g. theaflavins and thearubigins) that improve the quality of black tea. However, there are no systematic reports on the response of tea catechins to DS. First, we reviewed the available literature on the response of tea plants to DS. Second, we summarized the current knowledge of ROS production in tea leaves under DS and typical antioxidant response mechanisms. Third, we conducted a detailed review of the changes in catechin levels in tea under different drought conditions. We found that the total amounts of catechin and o-quinone increased under DS conditions. We propose that the possible mechanisms underlying tea catechin accumulation under DS conditions include (i) autotrophic formation of o-quinone, (ii) polymerization of proanthocyanidins that directly scavenge excess ROS, and (iii) formation of metal ion complexes and by influencing the antioxidant systems that indirectly eliminate excess ROS. Finally, we discuss ways of potentially improving black tea quality using drought before picking in the summer/fall dry season. In summary, we mainly discuss the antioxidant mechanisms of tea catechins under DS and the possibility of using drought to improve black tea quality. Our review provides a theoretical basis for the production of high-quality black tea under DS conditions. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Zhidong Lv
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Chenyu Zhang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Chenyu Shao
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Baogui Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Enshuo Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Danni Yuan
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Yuebing Zhou
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Chengwen Shen
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- Department of Horticulture, National Research Center of Engineering & Technology for Utilization of Functional Ingredients from Botanicals, Collaborative Innovation Center of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
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17
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Piacentini D, Della Rovere F, Bertoldi I, Massimi L, Sofo A, Altamura MM, Falasca G. Peroxisomal PEX7 Receptor Affects Cadmium-Induced ROS and Auxin Homeostasis in Arabidopsis Root System. Antioxidants (Basel) 2021; 10:antiox10091494. [PMID: 34573126 PMCID: PMC8471170 DOI: 10.3390/antiox10091494] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 12/18/2022] Open
Abstract
Peroxisomes are important in plant physiological functions and stress responses. Through the production of reactive oxygen and nitrogen species (ROS and RNS), and antioxidant defense enzymes, peroxisomes control cellular redox homeostasis. Peroxin (PEX) proteins, such as PEX7 and PEX5, recognize peroxisome targeting signals (PTS1/PTS2) important for transporting proteins from cytosol to peroxisomal matrix. pex7-1 mutant displays reduced PTS2 protein import and altered peroxisomal metabolism. In this research we analyzed the role of PEX7 in the Arabidopsis thaliana root system exposed to 30 or 60 μM CdSO4. Cd uptake and translocation, indole-3-acetic acid (IAA) and indole-3-butyric acid (IBA) levels, and reactive oxygen species (ROS) and reactive nitrogen species (RNS) levels and catalase activity were analyzed in pex7-1 mutant primary and lateral roots in comparison with the wild type (wt). The peroxisomal defect due to PEX7 mutation did not reduce Cd-uptake but reduced its translocation to the shoot and the root cell peroxisomal signal detected by 8-(4-Nitrophenyl) Bodipy (N-BODIPY) probe. The trend of nitric oxide (NO) and peroxynitrite in pex7-1 roots, exposed/not exposed to Cd, was as in wt, with the higher Cd-concentration inducing higher levels of these RNS. By contrast, PEX7 mutation caused changes in Cd-induced hydrogen peroxide (H2O2) and superoxide anion (O2●-) levels in the roots, delaying ROS-scavenging. Results show that PEX7 is involved in counteracting Cd toxicity in Arabidopsis root system by controlling ROS metabolism and affecting auxin levels. These results add further information to the important role of peroxisomes in plant responses to Cd.
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Affiliation(s)
- Diego Piacentini
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.P.); (F.D.R.); (I.B.); (L.M.); (M.M.A.)
| | - Federica Della Rovere
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.P.); (F.D.R.); (I.B.); (L.M.); (M.M.A.)
| | - Ilaria Bertoldi
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.P.); (F.D.R.); (I.B.); (L.M.); (M.M.A.)
| | - Lorenzo Massimi
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.P.); (F.D.R.); (I.B.); (L.M.); (M.M.A.)
| | - Adriano Sofo
- Department of European and Mediterranean Cultures: Architecture, Environment, and Cultural Heritage (DICEM), University of Basilicata, Via San Rocco 3, 75100 Matera, Italy;
| | - Maria Maddalena Altamura
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.P.); (F.D.R.); (I.B.); (L.M.); (M.M.A.)
| | - Giuseppina Falasca
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; (D.P.); (F.D.R.); (I.B.); (L.M.); (M.M.A.)
- Correspondence: ; Tel.: +39-(0)6-4992-2839
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18
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Kumar S, Shukla V, Dubey MK, Upadhyay RS. Activation of defense response in common bean against stem rot disease triggered by Trichoderma erinaceum and Trichoderma viride. J Basic Microbiol 2021; 61:910-922. [PMID: 34398489 DOI: 10.1002/jobm.202000749] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 05/25/2021] [Accepted: 08/08/2021] [Indexed: 11/08/2022]
Abstract
White mold and stem rot is a common disease of Phaseolus vulgaris caused by Sclerotinia sclerotiorum. Biological control is a promising alternative for the control of this disease. In the present study, two Trichoderma spp., T. erinaceum and T. viride, and the consortium of both were evaluated as biocontrol agents against sclerotinia stem rot disease. The results revealed that T. erinaceum (NAIMCC-F-02171) and T. viride (NAIMCC-F-02500) when applied alone, significantly suppressed the infection rate of S. sclerotiorum and increased the rate of survival of plants by 74.5%. On the contrary, the combination of both the Trichoderma spp. was found to be more effective in reducing stem rot by 57.2% and increasing the survival of plants by 87.5% when compared to the individual Trichoderma applications. Further, the exogenous supplementation of Trichoderma activated antioxidative machineries, such as peroxidase, polyphenol oxidase, superoxide dismutase, catalase, and ascorbic acid in the plant. Besides, hydrogen peroxide and superoxide-free radical accumulation were also found to be reduced when T. erinaceum and T. viride were used either individually or in combination under the pathogen-challenged condition. Additionally, the photopigments in the bioprimed plants were markedly increased. Moreover, the combined inoculation of the two isolates yielded the highest records of growth parameters (root weight, shoot length, and leaf weight) compared with individual inoculation. Therefore, based on the above results, it was concluded that the combination of T. erinaceum and T. viride can be effectively used as an alternative to control white mold and stem rot caused by S. sclerotiorum.
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Affiliation(s)
- Sunil Kumar
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Vaishali Shukla
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Manish Kumar Dubey
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India.,Department of Biosciences, School of Basic and Applied Sciences, Galgotias University, Greater Noida, Uttar Pradesh, India
| | - Ram Sanmukh Upadhyay
- Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Abu-Ghosh S, Iluz D, Dubinsky Z, Miller G. Exogenous Abscisic Acid Confers Salinity Tolerance in Chlamydomonas reinhardtii During Its Life Cycle. JOURNAL OF PHYCOLOGY 2021; 57:1323-1334. [PMID: 33963561 DOI: 10.1111/jpy.13174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
The plant hormone abscisic acid (ABA) coordinates responses to environmental signals with developmental changes and is important for stress resilience and crop yield. However, fundamental questions remain about how this phytohormone affects microalgal growth and stress regulation throughout the different stages of their life cycle. In this study, the effects of ABA on the physiology of the freshwater microalga Chlamydomonas reinhardtii at its different life cycle stages were investigated. Exogenously added ABA enhanced the growth and photosynthesis of C. reinhardtii during the vegetative stage. The hormone also increased the tolerance of this alga to high-salinity stress during gamete formation under nutrient depletion, as well as it extended their survival. We show that the level of reactive oxygen species (ROS) generated in the ABA-treated cells was significantly less than that in the untreated cells under inhibiting NaCl concentrations. Cell size examination showed that ABA prevents cells from forming palmella when exposed to high salinity. All together, these results suggest that ABA can support the vitality and survival of C. reinhardtii under high salt conditions.
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Affiliation(s)
- Said Abu-Ghosh
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Bar Ilan Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - David Iluz
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
- Environmental Sciences and Agriculture, Beit Berl Academic College, Kfar Saba, Israel
- Deptartment of science, Talpiot Academic College, Holon, Israel
| | - Zvy Dubinsky
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
| | - Gad Miller
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, 5290002, Israel
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Shehab AESAE, Guo Y. Effects of nitrogen fertilization and drought on hydrocyanic acid accumulation and morpho-physiological parameters of sorghums. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:3355-3365. [PMID: 33227149 DOI: 10.1002/jsfa.10965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/28/2020] [Accepted: 11/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Nitrogen fertilization can increase sorghum yield and quality and the hydrocyanic acid (HCN) accumulation in plants, increasing the risk of animal toxicity, particularly under drought conditions. In this study, plants of three sorghum genotypes (sweet sorghum, sudangrass and hybrid sorghum) were supplemented with nitrogen (0, 60, 90 and 120 kg N ha-1 ) under well-watered and drought-stressed conditions, aiming to investigate the responses of morpho-physiological parameters and HCN accumulation to drought and nitrogen fertilization. RESULTS Drought caused a decline in growth and photosynthesis. Average HCN content increased by 27.85% in drought-stressed plants when compared with those in well-watered plants. Drought increased the proline and soluble protein content, the content of O2 - , H2 O2 and malondialdehyde (MDA), and the activities of antioxidant enzymes in leaves of all three genotypes. Maximum plant growth and higher plant nutrient content (nitrogen and phosphorus) were observed at 120 kg N ha-1 , followed by 90 and 60 kg N ha-1 . However, a sharp increase in HCN content and a decrease in antioxidant enzyme activities were observed when nitrogen rates increased from 90 to 120 kg N ha-1 , suggesting that 90 kg N ha-1 might be better for sorghums under drought conditions. CONCLUSION These results suggest that optimum nitrogen application on sorghum under drought conditions could achieve a balance between plant defense and food safety, attributed to the reduced MDA, O2 - and H2 O2 accumulation, the improvement in photosynthesis parameters, the increase in soluble protein and proline content, and the increase in antioxidant enzyme activities. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Abd El Salam Abd El Shehab
- College of Animal Science and Technology, Southwest University, Chongqing, China
- Department of Agronomy, Faculty of Agriculture, AL-Azhar University, Cairo, Egypt
| | - Yanjun Guo
- College of Animal Science and Technology, Southwest University, Chongqing, China
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21
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Sahithi BM, Razi K, Al Murad M, Vinothkumar A, Jagadeesan S, Benjamin LK, Jeong BR, Muneer S. Comparative physiological and proteomic analysis deciphering tolerance and homeostatic signaling pathways in chrysanthemum under drought stress. PHYSIOLOGIA PLANTARUM 2021; 172:289-303. [PMID: 32459861 DOI: 10.1111/ppl.13142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/15/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Drought is increasing prevalently, mostly due to global warming, and harmful effects associated with drought stress include a reduction in the developmental phases of the plant life cycle. Drought stress affects vital metabolic processes in plants such as transpiration, photosynthesis and respiration. The other physiological and cellular processes like protein denaturation and aggregation are also affected by drought. Drought stress severely affects the floral industry by reducing the yield of flowers and among them is chrysanthemum (Dendranthema grandiflorum). In this study, we determined the critical signaling pathways, tolerance mechanism and homeostatic maintenance to drought stress in chrysanthemum. We compared the proteome of chrysanthemum leaves under drought stress. Among 250 proteins on 2DE gels, 30 protein spots were differentially expressed. These proteins were involved in major signaling pathways including, stress response, flower development and other secondary metabolism like physiological transport, circadian rhythm, gene regulation, DNA synthesis and protein ubiquitination. A reduction in a biomass, flower development, photosynthesis, transpiration, stomatal conductance, PSII yield and stomatal index was also observed in our results. Moreover, the stress markers and leaf water potential were also analyzed to depict the level of stress tolerance in chrysanthemum. Our data suggested that chrysanthemum plants developed reactive oxygen species and revealed signaling pathways to cope with drought stress. These results, thus, provide crucial information about how chrysanthemum plants respond to drought stress to maintain homeostasis.
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Affiliation(s)
- Bhuma Mani Sahithi
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Kaukab Razi
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Musa Al Murad
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Avanthika Vinothkumar
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Saravanan Jagadeesan
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Lincy Kirubhadharsini Benjamin
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
| | - Byoung Ryong Jeong
- Division of Applied Life Science (BK21+ Program), Graduate School, Gyeongsang National University, Jinju, 52828, South Korea
| | - Sowbiya Muneer
- Horticulture and Molecular Physiology Lab, School of Agricultural Innovations and Advanced Learning, Vellore Institute of Technology, Vellore, 632014, India
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Sheteiwy MS, Shao H, Qi W, Daly P, Sharma A, Shaghaleh H, Hamoud YA, El-Esawi MA, Pan R, Wan Q, Lu H. Seed priming and foliar application with jasmonic acid enhance salinity stress tolerance of soybean (Glycine max L.) seedlings. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:2027-2041. [PMID: 32949013 DOI: 10.1002/jsfa.10822] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 09/14/2020] [Accepted: 09/18/2020] [Indexed: 05/04/2023]
Abstract
BACKGROUND Jasmonic acid (JA) is an important molecule that has a regulatory effect on many physiological processes in plant growth and development under abiotic stress. This study investigated the effect of 60 μmol L-1 of JA in seed priming (P) at 15 °C in darkness for 24 h, foliar application (F), and/or their combination effect (P + F) on two soybean cultivars - 'Nannong 99-6' (salt tolerant) and 'Lee 68' (salt sensitive) - under salinity stress (100 mmol L-1 sodium chloride (NaCl)). RESULTS Salinity stress reduced seedling growth and biomass compared with that in the control condition. Priming and foliar application with JA and/or their combination significantly improved water potential, osmotic potential, water use efficiency, and relative water content of both cultivars under salinity stress. Similarly, seed priming with JA, foliar application of JA, and/or their combination significantly improved the following properties under salinity stress compared with the untreated seedlings: net photosynthetic rate by 68.03%, 59.85%, and 76.67% respectively; transpiration rate by 74.85%, 55.10%, and 80.26% respectively; stomatal conductance by 69.88%, 78.25%, and 26.24% respectively; intercellular carbon dioxide concentration by 61.64%, 40.06%, and 65.79% respectively; and total chlorophyll content by 47.41%, 41.02%, and 55.73% respectively. Soybean plants primed, sprayed with JA, or treated with their combination enhanced the chlorophyll fluorescence, which was damaged by salinity stress. JA treatments improved abscisic acid, gibberellic acid, and JA levels by 60.57%, 62.50% and 52.25% respectively under salt stress compared with those in the control condition. The transcriptional levels of the FeSOD, POD, CAT, and APX genes increased significantly in the NaCl-stressed seedlings irrespective of JA treatments. Moreover, JA treatment resulted in a reduction of sodium ion concentration and an increase of potassium ion concentrations in the leaf and root of both cultivars regardless of salinity stress. Monodehydroascorbate reductase, dehydroascorbate reductase, and proline contents decreased in the seedlings treated with JA under salinity stress, whereas the ascorbate content increased with JA treatment combined with NaCl stress. CONCLUSION The application of 60 μmol L-1 JA improved plant growth by regulating the interaction between plant hormones and hydrogen peroxide, which may be involved in auxin signaling and stomatal closure under salt stress. These methods could efficiently protect early seedlings and alleviate salt stress damage and provide possibilities for use in improving soybean growth and inducing tolerance against excessive soil salinity. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Mohamed S Sheteiwy
- Salt-Soil Agricultural Center, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agricultural Sciences (JAAS), Nanjing, China
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura, Egypt
| | - Hongbo Shao
- Salt-Soil Agricultural Center, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agricultural Sciences (JAAS), Nanjing, China
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, China
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, Yancheng Teachers University, Yancheng, China
| | - Weicong Qi
- Salt-Soil Agricultural Center, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agricultural Sciences (JAAS), Nanjing, China
| | - Paul Daly
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
| | - Anket Sharma
- State Key Laboratory of Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Hiba Shaghaleh
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Yousef Alhaj Hamoud
- College of Agricultural Science and Engineering, Hohai University, Nanjing, China
| | | | - Ronghui Pan
- Seed Science Center, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China
| | - Qun Wan
- Salt-Soil Agricultural Center, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agricultural Sciences (JAAS), Nanjing, China
| | - Haiying Lu
- Salt-Soil Agricultural Center, Institute of Agriculture Resources and Environment, Jiangsu Academy of Agricultural Sciences (JAAS), Nanjing, China
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Corpas FJ, González-Gordo S, Palma JM. Nitric Oxide (NO) Scaffolds the Peroxisomal Protein-Protein Interaction Network in Higher Plants. Int J Mol Sci 2021; 22:2444. [PMID: 33671021 PMCID: PMC7957770 DOI: 10.3390/ijms22052444] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/26/2022] Open
Abstract
The peroxisome is a single-membrane subcellular compartment present in almost all eukaryotic cells from simple protists and fungi to complex organisms such as higher plants and animals. Historically, the name of the peroxisome came from a subcellular structure that contained high levels of hydrogen peroxide (H2O2) and the antioxidant enzyme catalase, which indicated that this organelle had basically an oxidative metabolism. During the last 20 years, it has been shown that plant peroxisomes also contain nitric oxide (NO), a radical molecule than leads to a family of derived molecules designated as reactive nitrogen species (RNS). These reactive species can mediate post-translational modifications (PTMs) of proteins, such as S-nitrosation and tyrosine nitration, thus affecting their function. This review aims to provide a comprehensive overview of how NO could affect peroxisomal metabolism and its internal protein-protein interactions (PPIs). Remarkably, many of the identified NO-target proteins in plant peroxisomes are involved in the metabolism of reactive oxygen species (ROS), either in its generation or its scavenging. Therefore, it is proposed that NO is a molecule with signaling properties with the capacity to modulate the peroxisomal protein-protein network and consequently the peroxisomal functions, especially under adverse environmental conditions.
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Affiliation(s)
- Francisco J. Corpas
- Antioxidant, Free Radical and Nitric Oxide in Biotechnology, Food and Agriculture Group, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Spanish National Research Council (CSIC), C/ Profesor Albareda, 1, E-18008 Granada, Spain; (S.G.-G.); (J.M.P.)
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Tyagi S, Singh K, Upadhyay SK. Molecular characterization revealed the role of catalases under abiotic and arsenic stress in bread wheat (Triticum aestivum L.). JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123585. [PMID: 32810714 DOI: 10.1016/j.jhazmat.2020.123585] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/01/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Catalases are crucial antioxidant enzymes that reduce the excessive level of H2O2 caused by various environmental stresses and metal toxicity and hence protect the plant cells. In this study, a total of ten TaCAT genes, forming three homeologous groups, were identified in the genome of bread wheat (Triticum aestivum L.) and named as per the wheat gene symbolization guidelines. The identified catalases were characterized for various structural and physicochemical features. The proximal active-site (F(D/A)RERIPERVVHAKGASA) and heme-ligand (R(I/V)F(S/A)Y(A/S)DTQ) signature motifs, catalytic residues and peroxisomal targeting peptides were found conserved. Phylogenetic analysis clustered TaCATs into three classes, which showed conserved functional specialization based on their tissue specific expression. Modulated spatio-temporal expression of various TaCAT genes and alteration in total catalase enzyme activity during heat, drought, salt and arsenic (AsIII and AsV) treatment suggested their roles in abiotic stress response and arsenic tolerance. Molecular cloning and overexpression of TaCAT3-B gene in Escherichia coli showed tolerance against heat, drought, salt and varied concentrations of AsIII and AsV treatments. The results further confirmed their role in stress tolerance and recommended that these genes can be used in future stress management strategies for the development of abiotic and arsenic stress resistant transgenic crops.
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Affiliation(s)
- Shivi Tyagi
- Department of Botany, Panjab University, Chandigarh, 160014, India
| | - Kashmir Singh
- Department of Biotechnology, Panjab University, Chandigarh, 160014, India
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Chokshi K, Pancha I, Trivedi K, Maurya R, Ghosh A, Mishra S. Physiological responses of the green microalga Acutodesmus dimorphus to temperature induced oxidative stress conditions. PHYSIOLOGIA PLANTARUM 2020; 170:462-473. [PMID: 32812254 DOI: 10.1111/ppl.13193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/19/2020] [Accepted: 08/14/2020] [Indexed: 06/11/2023]
Abstract
Temperature is the most critical factor that directly affects the physiological functioning and metabolic activities of any organism. With rising global temperature, understanding the heat stress response of an organism is critically important. In the present study, we investigated differences in the early changes occurring upon heat stress in the green microalga Acutodesmus dimorphus, a potential strain for biofuel production. The cells were heat-stressed at 45 and 50°C for 24 h and the temporal response of cells in terms of growth, pigments content, levels of oxidative stress biomarkers i.e., reactive oxygen species (ROS) and the response of enzymatic and non-enzymatic antioxidant scavengers were evaluated. The results revealed that after 24 h of heat stress at 45°C, the accumulations of chlorophyll a and carotenoids remained stable; all three ROS increased with the higher activities of various enzymatic and non-enzymatic antioxidants. On the contrary, at a higher temperature of 50°C, the accumulations of chlorophyll a, carotenoids and non-enzymatic antioxidants reduced drastically while the accumulations of all three ROS and the response of enzymatic antioxidants were significantly higher than those at 45°C. These results suggest that the cells utilize several stress acclimatization mechanisms to cope up the heat stress. There was a dramatic difference in the physiological changes and cellular antioxidant mechanism upon heat stress at 45 and 50°C. The cellular defense response of A. dimorphus gets impaired after heat stress at 50°C but remains active at 45°C, exhibiting the heat resistance and, thus, the thermotolerance.
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Affiliation(s)
- Kaumeel Chokshi
- Division of Applied Phycology & Biotechnology, CSIR - Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama, 226-8503, Japan
| | - Imran Pancha
- Division of Applied Phycology & Biotechnology, CSIR - Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- Department of Biology, SRM University-AP, Amaravati, 522502, Andhra Pradesh, India
| | - Khanjan Trivedi
- Division of Applied Phycology & Biotechnology, CSIR - Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Rahulkumar Maurya
- Division of Applied Phycology & Biotechnology, CSIR - Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Arup Ghosh
- Division of Applied Phycology & Biotechnology, CSIR - Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sandhya Mishra
- Division of Applied Phycology & Biotechnology, CSIR - Central Salt and Marine Chemicals Research Institute, Bhavnagar, 364002, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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Yadav A, Singh D, Lingwan M, Yadukrishnan P, Masakapalli SK, Datta S. Light signaling and UV-B-mediated plant growth regulation. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:1270-1292. [PMID: 32237196 DOI: 10.1111/jipb.12932] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/26/2020] [Indexed: 05/05/2023]
Abstract
Light plays an important role in plants' growth and development throughout their life cycle. Plants alter their morphological features in response to light cues of varying intensity and quality. Dedicated photoreceptors help plants to perceive light signals of different wavelengths. Activated photoreceptors stimulate the downstream signaling cascades that lead to extensive gene expression changes responsible for physiological and developmental responses. Proteins such as ELONGATED HYPOCOTYL5 (HY5) and CONSTITUTIVELY PHOTOMORPHOGENIC 1 (COP1) act as important factors which modulate light-regulated gene expression, especially during seedling development. These factors function as central regulatory intermediates not only in red, far-red, and blue light pathways but also in the UV-B signaling pathway. UV-B radiation makes up only a minor fraction of sunlight, yet it imparts many positive and negative effects on plant growth. Studies on UV-B perception, signaling, and response in plants has considerably surged in recent times. Plants have developed different strategies to use UV-B as a developmental cue as well as to withstand high doses of UV-B radiation. Plants' responses to UV-B are an integration of its cross-talks with both environmental factors and phytohormones. This review outlines the current developments in light signaling with a major focus on UV-B-mediated plant growth regulation.
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Affiliation(s)
- Arpita Yadav
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, Madhya Pradesh, 462066, India
| | - Deeksha Singh
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, Madhya Pradesh, 462066, India
| | - Maneesh Lingwan
- School of Basic Sciences, Indian Institute of Technology (IIT) Mandi, Kamand, Himachal Pradesh, 175005, India
| | - Premachandran Yadukrishnan
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, Madhya Pradesh, 462066, India
| | - Shyam Kumar Masakapalli
- School of Basic Sciences, Indian Institute of Technology (IIT) Mandi, Kamand, Himachal Pradesh, 175005, India
| | - Sourav Datta
- Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal, Madhya Pradesh, 462066, India
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27
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Ismaiel MMS, Piercey-Normore MD. Gene transcription and antioxidants production in Arthrospira (Spirulina) platensis grown under temperature variation. J Appl Microbiol 2020; 130:891-900. [PMID: 32780445 DOI: 10.1111/jam.14821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 07/05/2020] [Accepted: 08/07/2020] [Indexed: 11/30/2022]
Abstract
AIM To investigate the transcription of selected antioxidants and relevant genes under varying temperature conditions, and to identify the optimum temperature for antioxidants production by Arthrospira platensis. METHODS AND RESULTS The dry weight (DW), pigment production, antioxidants production and gene transcription were examined in A. platensis growing under three temperatures of 23, 30 and 37°C. The cyanobacterial DW was highest in the high temperatures (30 and 37°C), while the pigments, such as Chl a, carotenoids, C-phycocyanin and total phycobiliprotein contents, showed their maximum value at 30°C. The total soluble protein and carbohydrate contents were highest at 30°C. Lipid peroxidation, as a marker for thermal stress, was high at 23°C, while higher temperatures remarkably reduced lipid peroxidation levels. Antioxidants activity was increased by 1·5-fold at 30°C and temperature fluctuations induced the antioxidant enzyme activities. The transcriptional abundance of heat shock protein (HSP90), glutamate synthase (GOGAT), delta-9 desaturase (desC), iron-superoxide dismutase (FeSOD) and the large subunit of Rubisco (rbcL) genes was measured under the same temperatures. CONCLUSION The optimal temperature for growth, biochemical constituents and antioxidants of A. platensis is 30°C while some antioxidant enzyme activity increased at lower and higher temperatures. SIGNIFICANCE AND IMPACT OF THE STUDY The study showed the significance of temperature for growth, enzymatic and non-enzymatic antioxidants and gene expression in A. platensis. This contributes to the knowledge of culturing A. platensis to harvest specific antioxidants or as an antioxidant-rich food source.
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Affiliation(s)
- M M S Ismaiel
- Department of Botany and Microbiology, Faculty of Science, Zagazig University, Zagazig, 44519, Egypt
| | - M D Piercey-Normore
- School of Science and the Environment, Memorial University of NL (Grenfell Campus), Corner Brook, NL, A2H 5G4, Canada
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28
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Salih KJ, Duncan O, Li L, O'Leary B, Fenske R, Trösch J, Millar AH. Impact of oxidative stress on the function, abundance, and turnover of the Arabidopsis 80S cytosolic ribosome. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:128-139. [PMID: 32027433 DOI: 10.1111/tpj.14713] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 01/05/2020] [Accepted: 01/23/2020] [Indexed: 05/22/2023]
Abstract
Abiotic stress in plants causes accumulation of reactive oxygen species (ROS) leading to the need for new protein synthesis to defend against ROS and to replace existing proteins that are damaged by oxidation. Functional plant ribosomes are critical for these activities, however we know little about the impact of oxidative stress on plant ribosome abundance, turnover, and function. Using Arabidopsis cell culture as a model system, we induced oxidative stress using 1 µm of H2 O2 or 5 µm menadione to more than halve cell growth rate and limit total protein content. We show that ribosome content on a total cell protein basis decreased in oxidatively stressed cells. However, overall protein synthesis rates on a ribosome abundance basis showed the resident ribosomes retained their function in oxidatively stressed cells. 15 N progressive labelling was used to calculate the rate of ribosome synthesis and degradation to track the fate of 62 r-proteins. The degradation rates and the synthesis rates of most r-proteins slowed following oxidative stress leading to an ageing population of ribosomes in stressed cells. However, there were exceptions to this trend; r-protein RPS14C doubled its degradation rate in both oxidative treatments. Overall, we show that ribosome abundance decreases and their age increases with oxidative stress in line with loss of cell growth rate and total cellular protein amount, but ribosome function of the ageing ribosomes appeared to be maintained concomittently with differences in the turnover rate and abundance of specific ribosomal proteins. Data are available via ProteomeXchange with identifier PXD012840.
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Affiliation(s)
- Karzan J Salih
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
- Pharmaceutical Chemistry Department, Medical and Applied Science College, Charmo University, 46023, Chamchamal-Sulaimani, Kurdistan Region, Iraq
| | - Owen Duncan
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
| | - Lei Li
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
- College of Life Sciences, Nankai University, 300071, Tianjin, China
| | - Brendan O'Leary
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
| | - Ricarda Fenske
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
| | - Josua Trösch
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
| | - A Harvey Millar
- ARC Centre of Excellence in Plant Energy Biology, School of Molecular Science, The University of Western Australia, 6009, Crawley, WA, Australia
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Dias CS, Rios JA, Einhardt AM, Chaves JAA, Rodrigues FA. Effect of glutamate on Pyricularia oryzae infection of rice monitored by changes in photosynthetic parameters and antioxidant metabolism. PHYSIOLOGIA PLANTARUM 2020; 169:179-193. [PMID: 31837023 DOI: 10.1111/ppl.13061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/03/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Considering the importance of blast caused by Pyricularia oryzae in the decrease of rice yield worldwide, this study aimed to assess the photosynthetic performance [leaf gas exchange and chlorophyll (Chl) a fluorescence parameters as well as the photosynthetic pigments concentration], the activities of antioxidant enzymes [ascorbate peroxidase, catalase (CAT), peroxidase (POX), superoxide dismutase (SOD), glutathione peroxidase (GPX), glutathione reductase (GR) and glutathione-S-transferase] and concentrations of hydrogen peroxide (H2 O2 ) and malondialdehyde (MDA) in the leaves of rice plants non-supplied (-Glu) or supplied (+Glu) with glutamate (Glu) and non-infected or infected by P. oryzae. Blast severity was reduced in the leaves of +Glu plants. On the infected leaves of +Glu plants, the values for internal CO2 concentration were lower while the values for net carbon assimilation rate, stomatal conductance as well as for the concentrations of Chl a, Chl b and carotenoids were higher in comparison to infected leaves of -Glu plants. The functionality of the photosynthetic apparatus was preserved in the infected leaves of +Glu plants. The activities of CAT, GPX, GR, POX and SOD increased in the infected leaves of both -Glu and +Glu plants compared to their non-inoculated counterparts, but their activities were lower for +Glu plants. The lower activity of these antioxidative enzymes was triggered by the reduced hydrogen peroxide concentration in the infected leaves of +Glu plants resulting in lower MDA concentration. It can be concluded that photosynthesis was less impaired in infected plants supplied with glutamate due to the lower biochemical constraints for CO2 fixation. Moreover, there was a need for lower activity of reactive oxygen species scavenging enzymes in infected leaves of plants supplied with glutamate due to the lower oxidative stress imposed by P. oryzae infection.
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Affiliation(s)
- Carla S Dias
- Departamento de Fitopatologia, Laboratório da Interação Planta-Patógeno, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Jonas A Rios
- Departamento de Fitopatologia, Laboratório da Interação Planta-Patógeno, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Andersom M Einhardt
- Departamento de Fitopatologia, Laboratório da Interação Planta-Patógeno, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Joicy A A Chaves
- Departamento de Fitopatologia, Laboratório da Interação Planta-Patógeno, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Fabrício A Rodrigues
- Departamento de Fitopatologia, Laboratório da Interação Planta-Patógeno, Universidade Federal de Viçosa, Viçosa, Minas Gerais, 36570-900, Brazil
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Gong Q, Li S, Zheng Y, Duan H, Xiao F, Zhuang Y, He J, Wu G, Zhao S, Zhou H, Lin H. SUMOylation of MYB30 enhances salt tolerance by elevating alternative respiration via transcriptionally upregulating AOX1a in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:1157-1171. [PMID: 31951058 DOI: 10.1111/tpj.14689] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/28/2019] [Accepted: 01/07/2020] [Indexed: 05/27/2023]
Abstract
Salt stress reduces crop growth and productivity globally. Here we report that a R2R3-MYB transcription factor MYB30 participates in salt tolerance in Arabidopsis. MYB30 can be SUMOylated by SIZ1 in response to salt stress and the lysine (K)283 of MYB30 is essential for its SUMOylation. In contrast to wild-type MYB30, the MYB30K283R mutant failed to rescue the salt-sensitive phenotype of the myb30-2 mutant, indicating that SUMOylation of MYB30 is required for the salt-stress response. Through transcriptomic analysis, we identified a MYB30 target, alternative oxidase 1a (AOX1a). MYB30 binds the promoter of AOX1a and upregulates its expression in response to salt stress; however, MYB30K283R cannot bind the promoter of AOX1a. The cyanide (CN)-resistant alternative respiration (Alt) mediated by AOX is significantly reduced in the myb30-2 mutant through the loss of function of MYB30. As a result, the redox homeostasis is disrupted in the myb30-2 mutant compared with that in wild-type seedlings (WT) under salt conditions. The artificial elimination of excess reactive oxygen species partially rescues the salt-sensitive phenotype of the myb30-2 mutant, whereas after the exogenous application of SHAM, an inhibitor of AOXs and Alt respiration, the salt tolerance of Col-0 and the complemented plants decreased to a level similar to that observed in myb30-2. Finally, overexpression of AOX1a in myb30-2 confers WT-like salt tolerance compared with that of the myb30-2 mutant. Taken together, our results revealed a functional link between MYB30 and AOX1a, and indicated that SIZ1-mediated SUMOylation of MYB30 enhances salt tolerance by regulating Alt respiration and cellular redox homeostasis via AOX1a in Arabidopsis.
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Affiliation(s)
- Qianyuan Gong
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Sha Li
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Yuan Zheng
- Department of Biology, Institute of Plant Stress Biology, State Key Laboratory of Cotton Biology, Henan University, Kaifeng, 475004, China
| | - Hongqin Duan
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Fei Xiao
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Yufen Zhuang
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Jiaxian He
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Guochun Wu
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Shuangshuang Zhao
- Key Laboratory of Plant Stress, Life Science College, Shandong Normal University, Jinan, 250014, China
| | - Huapeng Zhou
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
| | - Honghui Lin
- Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610064, China
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Santander C, Ruiz A, García S, Aroca R, Cumming J, Cornejo P. Efficiency of two arbuscular mycorrhizal fungal inocula to improve saline stress tolerance in lettuce plants by changes of antioxidant defense mechanisms. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:1577-1587. [PMID: 31769028 DOI: 10.1002/jsfa.10166] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 11/18/2019] [Accepted: 11/21/2019] [Indexed: 05/27/2023]
Abstract
BACKGROUND Arbuscular mycorrhizal (AM) fungi establish symbioses with most agricultural plants and improves growth under soil stress conditions. The present study aimed to evaluate the functional contribution of 2 AM fungal inocula (a native consortium isolated from saline soils of the Atacama Desert, 'HMC', and a reference inoculum Claroideoglomus claroideum, 'Cc') on the growth and antioxidant compounds of two cultivars of lettuce (Lactuca sativa cvs. 'Grand Rapids' and 'Lollo Bionda') at increasing salt stress conditions (0, 40, and 80 mmol L-1 NaCl). At 60 days of plant growth, the symbiotic development, biomass production, lipid peroxidation, proline content, antioxidant enzymes, phenolic compound profiles and antioxidant activity were evaluated. RESULTS The 2 AM inocula differentially colonized the roots of Grand Rapids and Lollo Bionda lettuce plants. The AM symbioses increased proline synthesis and superoxide dismutase, catalase and ascorbate peroxidase activities and diminished phenolic compound synthesis and oxidative damage in lettuce, which was related positively to a higher growth of inoculated plants under salt exposure. The higher concentration of phenolic compounds induced by salinity in non-inoculated plants was associated with high oxidative stress and low fresh biomass production. CONCLUSION Modulation of salinity stress in lettuce by AM root colonization is a result of changes of antioxidant enzymatic systems that reduce oxidative damage and sustain growth. The application of AM fungi to improve crop production by means of directed inoculation with efficient AM fungal strains may enhance lettuce production on soils plagued with salinity worldwide. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Christian Santander
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental (CIMYSA), Universidad de La Frontera, Temuco, Chile
- Centro de Investigación y Desarrollo en Recursos Hídricos (CIDERH), Universidad Arturo Prat, Iquique, Chile
| | - Antonieta Ruiz
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental (CIMYSA), Universidad de La Frontera, Temuco, Chile
| | - Susana García
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental (CIMYSA), Universidad de La Frontera, Temuco, Chile
| | - Ricardo Aroca
- Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Jonathan Cumming
- Department of Biology, West Virginia University, Morgantown, WV, USA
| | - Pablo Cornejo
- Centro de Investigación en Micorrizas y Sustentabilidad Agroambiental (CIMYSA), Universidad de La Frontera, Temuco, Chile
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Goffi V, Magri A, Botondi R, Petriccione M. Response of antioxidant system to postharvest ozone treatment in 'Soreli' kiwifruit. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:961-968. [PMID: 31591725 DOI: 10.1002/jsfa.10055] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/10/2019] [Accepted: 09/14/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Among the challenges for postharvest researchers is that of understanding the physiological and biochemical pathways associated with postharvest fruit decay. Fruit senescence directly affects sensorial and nutritional quality during postharvest life. It has been clarified that reactive oxygen species and oxidative damage are responsible for fruit senescence. Some cultivars of yellow-fleshed kiwifruit can be stored for a short period compared with green-fleshed kiwifruit. Postharvest performance is affected by the physiological state of the fruit at harvest, associated with its postharvest management. Among several postharvest applications, ozone treatment is considered as a cost-effective and eco-friendly food-processing technology to preserve the fruits' quality during cold storage. In this study, we investigated the influence of ozone, after gradual cooling treatment, on the antioxidant defense system in Actinidia chinensis, 'Soreli'. RESULTS Bioactive compound content decreased during cold storage, and ozone treatment enhanced the activities of superoxide dismutase and catalase during cold storage. This treatment preserved membrane integrity by inhibiting lipoxygenase activity and malondialdehyde accumulation. A multivariate statistical approach, using principal component analysis, provided the global response to the effect of ozone postharvest treatment during cold storage in kiwifruit 'Soreli'. CONCLUSION Ozone treatment improves the efficiency of antioxidative system and storability of 'Soreli' kiwifruits. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Valentina Goffi
- Department for Innovation in Biological, Agro-Food and Forest systems (DIBAF), Università degli Studi della Tuscia, Viterbo, Italy
| | - Anna Magri
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia agraria (CREA), Centro di ricerca Olivicoltura, Frutticoltura e Agrumicoltura, Caserta, Italy
| | - Rinaldo Botondi
- Department for Innovation in Biological, Agro-Food and Forest systems (DIBAF), Università degli Studi della Tuscia, Viterbo, Italy
| | - Milena Petriccione
- Consiglio per la Ricerca in Agricoltura e l'Analisi dell'Economia agraria (CREA), Centro di ricerca Olivicoltura, Frutticoltura e Agrumicoltura, Caserta, Italy
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Kaya C, Higgs D, Ashraf M, Alyemeni MN, Ahmad P. Integrative roles of nitric oxide and hydrogen sulfide in melatonin-induced tolerance of pepper (Capsicum annuum L.) plants to iron deficiency and salt stress alone or in combination. PHYSIOLOGIA PLANTARUM 2020; 168:256-277. [PMID: 30980533 DOI: 10.1111/ppl.12976] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 03/09/2019] [Accepted: 04/09/2019] [Indexed: 05/03/2023]
Abstract
There seems to be no report in the literature on the effect of melatonin (MT) in relieving the detrimental effects of combined application of salt stress (SS) and iron deficiency (ID). Therefore, the effect of MT on the accumulation/synthesis of endogenous nitric oxide (NO) and hydrogen sulphide (H2 S) and how far these molecules are involved in MT-improved tolerance to the combined application of ID and SS in pepper (Capsicum annuum L) were tested. Hence, two individual trials were set up. The treatments in the first experiment comprised: Control, ID (0.1 mM FeSO4 ), SS (100 mM NaCl) and ID + SS. The detrimental effects of combined stresses were more prominent than those by either of the single stress, with respect to growth, oxidative stress and antioxidant defense attributes. Single stress or both in combination improved the endogenous H2 S and NO, and foliar-applied MT (100 µM) led to a further increase in NO and H2 S levels. In the second experiment, 0.1 mM scavenger of NO, 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt (cPTIO) and that of H2 S, hypotuarine (HT) were applied along with MT to get further evidence whether NO and H2 S are involved in MT-induced tolerance to ID and SS. MT combined with cPTIO and HT under a single or combined stress showed that NO effect was reversed by the NO scavenger, cPTIO, alone but the H2 S effect was inhibited by both scavengers. These findings suggested that tolerance to ID and SS induced by MT may be involved in downstream signal crosstalk between NO and H2 S.
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Affiliation(s)
- Cengiz Kaya
- Soil Science and Plant Nutrition Department, Harran University, Sanliurfa, Turkey
| | - David Higgs
- Department of Biological & Environmental Sciences, University of Hertfordshire, Hatfield, AL10 9AB, UK
| | - Muhammad Ashraf
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
| | - Mohammed N Alyemeni
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Botany, S.P. College Srinagar, Jammu and Kashmir, India
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Chen H, Ruan J, Chu P, Fu W, Liang Z, Li Y, Tong J, Xiao L, Liu J, Li C, Huang S. AtPER1 enhances primary seed dormancy and reduces seed germination by suppressing the ABA catabolism and GA biosynthesis in Arabidopsis seeds. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 101:310-323. [PMID: 31536657 DOI: 10.1111/tpj.14542] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 09/02/2019] [Accepted: 09/09/2019] [Indexed: 05/07/2023]
Abstract
Seed is vital to the conservation of germplasm and plant biodiversity. Seed dormancy is an adaptive trait in numerous seed-plant species, enabling plants to survive under stressful conditions. Seed dormancy is mainly controlled by abscisic acid (ABA) and gibberellin (GA) and can be classified as primary and secondary seed dormancy. The primary seed dormancy is induced by maternal ABA. Here we found that AtPER1, a seed-specific peroxiredoxin, is involved in enhancing primary seed dormancy. Two loss-of-function atper1 mutants, atper1-1 and atper1-2, displayed suppressed primary seed dormancy accompanied with reduced ABA and increased GA contents in seeds. Furthermore, atper1 mutant seeds were insensitive to abiotic stresses during seed germination. The expression of several ABA catabolism genes (CYP707A1, CYP707A2, and CYP707A3) and GA biosynthesis genes (GA20ox1, GA20ox3, and KAO3) in atper1 mutant seeds was increased compared to wild-type seeds. The suppressed primary seed dormancy of atper1-1 was completely reduced by deletion of CYP707A genes. Furthermore, loss-of-function of AtPER1 cannot enhance the seed germination ratio of aba2-1 or ga1-t, suggesting that AtPER1-enhanced primary seed dormancy is dependent on ABA and GA. Additionally, the level of reactive oxygen species (ROS) in atper1 mutant seeds was significantly higher than that in wild-type seeds. Taken together, our results demonstrate that AtPER1 eliminates ROS to suppress ABA catabolism and GA biosynthesis, and thus improves the primary seed dormancy and make the seeds less sensitive to adverse environmental conditions.
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Affiliation(s)
- Huhui Chen
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
| | - Jiuxiao Ruan
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
| | - Pu Chu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Agriculture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Wei Fu
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
| | - Zhenwei Liang
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
| | - Yin Li
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
| | - Jianhua Tong
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, 410128, Changsha, China
| | - Langtao Xiao
- Hunan Provincial Key Laboratory of Phytohormones and Growth Development, Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Hunan Agricultural University, 410128, Changsha, China
| | - Jun Liu
- Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Chenlong Li
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
| | - Shangzhi Huang
- State Key Laboratory of Biocontrol and Guangdong Key Laboratory of Plant Resource, School of Life Sciences, Sun YAT-SEN University, 510275, Guangzhou, China
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Li H, Monteiro C, Heinrich S, Bartsch I, Valentin K, Harms L, Glöckner G, Corre E, Bischof K. Responses of the kelp Saccharina latissima (Phaeophyceae) to the warming Arctic: from physiology to transcriptomics. PHYSIOLOGIA PLANTARUM 2020; 168:5-26. [PMID: 31267544 DOI: 10.1111/ppl.13009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/31/2019] [Accepted: 06/27/2019] [Indexed: 06/09/2023]
Abstract
The Arctic region is currently facing substantial environmental changes due to global warming. Melting glaciers cause reduced salinity environments in coastal Arctic habitats, which may be stressful for kelp beds. To investigate the responses of the kelp Saccharina latissima to the warming Arctic, we studied the transcriptomic changes of S. latissima from Kongsfjorden (Svalbard, Norway) over a 24-hour exposure to two salinities (Absolute Salinity [SA ] 20 and 30) after a 7-day pre-acclimation at three temperatures (0, 8 and 15°C). In addition, corresponding physiological data were assessed during an 11-days salinity/temperature experiment. Growth and maximal quantum yield for photosystem II fluorescence were positively affected by increased temperature during acclimation, whereas hyposalinity caused negative effects at the last day of treatment. In contrast, hyposalinity induced marked changes on the transcriptomic level. Compared to the control (8°C - SA 30), the 8°C - SA 20 exhibited the highest number of differentially expressed genes (DEGs), followed by the 0°C - SA 20. Comparisons indicate that S. latissima tends to convert its energy from primary metabolism (e.g. photosynthesis) to antioxidant activity under hyposaline stress. The increase in physiological performance at 15°C shows that S. latissima in the Arctic region can adjust and might even benefit from increased temperatures. However, in Arctic fjord environments its performance might become impaired by decreased salinity as a result of ice melting.
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Affiliation(s)
- Huiru Li
- Fisheries College, Ocean University of China, Qingdao, 266003, China
- Marine Botany, Faculty Biology/Chemistry, University of Bremen, Bremen, 28359, Germany
| | - Cátia Monteiro
- Marine Botany, Faculty Biology/Chemistry, University of Bremen, Bremen, 28359, Germany
- Station Biologique de Roscoff, plateforme ABiMS, CNRS: FR2424, Sorbonne Université (UPMC), Roscoff, 29680, France
- Sorbonne Université, CNRS, Integrative Biology of Marine Models (LBI2M), Station Biologique de Roscoff, Roscoff, 29680, France
| | - Sandra Heinrich
- Molecular Plant Genetics, Institute for Plant Science and Microbiology, University of Hamburg, Hamburg, 22609, Germany
| | - Inka Bartsch
- Alfred-Wegener-Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, 27570, Germany
| | - Klaus Valentin
- Alfred-Wegener-Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, 27570, Germany
| | - Lars Harms
- Alfred-Wegener-Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, 27570, Germany
| | - Gernot Glöckner
- Institute of Biochemistry I, Medical Faculty, University of Cologne, Cologne, 50931, Germany
| | - Erwan Corre
- Station Biologique de Roscoff, plateforme ABiMS, CNRS: FR2424, Sorbonne Université (UPMC), Roscoff, 29680, France
| | - Kai Bischof
- Marine Botany, Faculty Biology/Chemistry, University of Bremen, Bremen, 28359, Germany
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Küstner L, Fürtauer L, Weckwerth W, Nägele T, Heyer AG. Subcellular dynamics of proteins and metabolites under abiotic stress reveal deferred response of the Arabidopsis thaliana hexokinase-1 mutant gin2-1 to high light. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 100:456-472. [PMID: 31386774 DOI: 10.1111/tpj.14491] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 07/22/2019] [Accepted: 07/29/2019] [Indexed: 05/13/2023]
Abstract
Stress responses in plants imply spatio-temporal changes in enzymes and metabolites, including subcellular compartment-specific re-allocation processes triggered by sudden changes in environmental parameters. To investigate interactions of primary metabolism with abiotic stress, the gin2-1 mutant, defective in the sugar sensor hexokinase 1 (HXK1) was compared with its wildtype Landsberg erecta (Ler) based on time resolved, compartment-specific metabolome and proteome data obtained over a full diurnal cycle. The high light sensitive gin2-1 mutant was substantially delayed in subcellular re-distribution of metabolites upon stress, and this correlated with a massive reduction in proteins belonging to the ATP producing electron transport chain under high light, while fewer changes occurred in the cold. In the wildtype, compounds specifically protecting individual compartments could be identified, e.g., maltose and raffinose in plastids, myo-inositol in mitochondria, but gin2-1 failed to recruit these substances to the respective compartments, or responded only slowly to high irradiance. No such delay was obtained in the cold. At the whole cell level, concentrations of the amino acids, glycine and serine, provided strong evidence for an important role of the photorespiratory pathway during stress exposure, and different subcellular allocation of serine may contribute to the slow growth of the gin2-1 mutant under high irradiance.
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Affiliation(s)
- Lisa Küstner
- Department of Plant Biotechnology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569, Stuttgart, Germany
| | - Lisa Fürtauer
- Department Biology I, Plant Evolutionary Cell Biology, Ludwig-Maximilians-University Munich, Großhaderner Str. 2-4, 82152, Planegg-Martinsried, Germany
| | - Wolfram Weckwerth
- Department of Ecogenomics and Systems Biology, University of Vienna, Althanstraße 14, 1090, Vienna, Austria
- Vienna Metabolomics Center, University of Vienna, Althanstraße 14, 1090, Vienna, Austria
| | - Thomas Nägele
- Department Biology I, Plant Evolutionary Cell Biology, Ludwig-Maximilians-University Munich, Großhaderner Str. 2-4, 82152, Planegg-Martinsried, Germany
| | - Arnd G Heyer
- Department of Plant Biotechnology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569, Stuttgart, Germany
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Wang C, Guo L, Yao J, Wang A, Gao F, Zhao X, Zeng Z, Wang Y, Sun C, Cui H, Cui B. Preparation, characterization and antifungal activity of pyraclostrobin solid nanodispersion by self-emulsifying technique. PEST MANAGEMENT SCIENCE 2019; 75:2785-2793. [PMID: 30809936 DOI: 10.1002/ps.5390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 02/14/2019] [Accepted: 02/22/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Pathogenic fungi are the causal agents of 70-80% of plant diseases. Therefore, it is imperative to explore new and high effective fungicides. Constructing nanoscale fungicides using nanomaterial and nanotechnology has attracted wide attention in recent years. RESULTS In this research, a pyraclostrobin solid nanodispersion (PSND) was prepared using the self-emulsifying method. The solid nanodispersion had a mean particle size of 20 nm and a zeta potential of -29.3 mV. The solubility and dissolution rate of the PSND increased owing to the decrease in particle size and the actions of the surfactants. The contact angle and retention volumes of the PSND on cucumber and cabbage leaf surfaces were greater than those of the commercial water dispersible granule. In addition, the median lethal concentration against Fusarium oxysporum was 0.7 43 µg mL-1 . The toxicity of the nanoparticles was 4.5 times that of the water dispersible granule (WDG). The high fungicidal activity of PSND promoted the production of excess reactive oxygen species (ROS). The activity levels of the antioxidant enzymes containing superoxide dismutase (SOD) and catalase (CAT) decreased in F. oxysporum. CONCLUSION The research introduced a new method for preparing insoluble pyraclostrobin solid nanoformulation for fungicides to enhance the fungicidal activity and reduce environmental pollution. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Liang Guo
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Junwei Yao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China
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Hinojosa L, Sanad MNME, Jarvis DE, Steel P, Murphy K, Smertenko A. Impact of heat and drought stress on peroxisome proliferation in quinoa. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 99:1144-1158. [PMID: 31108001 DOI: 10.1111/tpj.14411] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/07/2019] [Accepted: 05/13/2019] [Indexed: 05/21/2023]
Abstract
Although peroxisomes play a key role in plant metabolism under both normal and stressful growth conditions, the impact of drought and heat stress on the peroxisomes remains unknown. Quinoa represents an informative system for dissecting the impact of abiotic stress on peroxisome proliferation because it is adapted to marginal environments. Here we determined the correlation of peroxisome abundance with physiological responses and yield under heat, drought and heat plus drought stresses in eight genotypes of quinoa. We found that all stresses caused a reduction in stomatal conductance and yield. Furthermore, H2 O2 content increased under drought and heat plus drought. Principal component analysis demonstrated that peroxisome abundance correlated positively with H2 O2 content in leaves and correlated negatively with yield. Pearson correlation coefficient for yield and peroxisome abundance (r = -0.59) was higher than for commonly used photosynthetic efficiency (r = 0.23), but comparable to those for classical stress indicators such as soil moisture content (r = 0.51) or stomatal conductance (r = 0.62). Our work established peroxisome abundance as a cellular sensor for measuring responses to heat and drought stress in the genetically diverse populations. As heat waves threaten agricultural productivity in arid climates, our findings will facilitate identification of genetic markers for improving yield of crops under extreme weather patterns.
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Affiliation(s)
- Leonardo Hinojosa
- Department of Crop and Soil Sciences, Washington State University, PO Box 646340, Pullman, WA, 99164, USA
| | - Marwa N M E Sanad
- Institute of Biological Chemistry, Washington State University, PO Box 646340, Pullman, WA, 99164, USA
- Department of Genetics and Cytology, National Research Centre, Giza, Egypt
| | - David E Jarvis
- Plant & Wildlife Sciences, Brigham Young University, Provo, UT, 84602, USA
| | - Patrick Steel
- Department of Chemistry, Durham University, Durham, UK
| | - Kevin Murphy
- Department of Crop and Soil Sciences, Washington State University, PO Box 646340, Pullman, WA, 99164, USA
| | - Andrei Smertenko
- Institute of Biological Chemistry, Washington State University, PO Box 646340, Pullman, WA, 99164, USA
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Díaz-Tielas C, Graña E, Sánchez-Moreiras AM, Reigosa MJ, Vaughn JN, Pan Z, Bajsa-Hirschel J, Duke MV, Duke SO. Transcriptome responses to the natural phytotoxin t-chalcone in Arabidopsis thaliana L. PEST MANAGEMENT SCIENCE 2019; 75:2490-2504. [PMID: 30868714 DOI: 10.1002/ps.5405] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/04/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND New modes of action are needed for herbicides. The flavonoid synthesis intermediate t-chalcone causes apoptosis-like symptoms in roots and bleaching of shoots of Arabidospsis, suggesting a unique mode of action as a phytotoxin. RESULTS Using RNA-Seq, transcriptome changes were monitored in Arabidopsis seedlings during the first 24 h of exposure (at 1, 3, 6, 12 and 24 h) to 21 μm t-chalcone (I50 dose), examining effects on roots and shoots separately. Expression of 892 and 1000 genes was affected in roots and shoots, respectively. According to biological classification, many of the affected genes were transcription factors and genes associated with oxidative stress, heat shock proteins, xenobiotic detoxification, ABA and auxin biosynthesis, and primary metabolic processess. These are secondary effects found with most phytotoxins. Potent phytotoxins usually act by inhibiting enzymes of primary metabolism. KEGG pathway analysis of transcriptome results from the first 3 h of t-chalcone exposure indicated several potential primary metabolism target sites for t-chalcone. Of these, p-hydroxyphenylpyruvate dioxygenase (HPPD) and tyrosine amino transferase were consistent with the bleaching effect of the phytotoxin. Supplementation studies with Lemna paucicostata and Arabidiopsis supported HPPD as the target, although in vitro enzyme inhibition was not found. CONCLUSIONS t-Chalcone is possibly a protoxin that is converted to a HPPD inhibitor in vivo. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Carla Díaz-Tielas
- Department of Plant Biology and Soil Science, University of Vigo, Vigo, Spain
| | - Elisa Graña
- Department of Plant Biology and Soil Science, University of Vigo, Vigo, Spain
| | | | - Manuel J Reigosa
- Department of Plant Biology and Soil Science, University of Vigo, Vigo, Spain
| | - Justin N Vaughn
- Genomics and Bioinformatics Research Unit, USDA, ARS, Athens, GA, USA
| | - Zhiqiang Pan
- Natural Products Utilization Research Unit, USDA, ARS, Oxford, MS, USA
| | | | - Mary V Duke
- Genomics and Bioinformatics Research, USDA, ARS, Stoneville, MS, USA
| | - Stephen O Duke
- Natural Products Utilization Research Unit, USDA, ARS, Oxford, MS, USA
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Hosseini FS, Akhavan HR, Maghsoudi H, Hajimohammadi-Farimani R, Balvardi M. Effects of a rotational UV-C irradiation system and packaging on the shelf life of fresh pistachio. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:5229-5238. [PMID: 31021408 DOI: 10.1002/jsfa.9763] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND In this study, fresh pistachio was exposed to UV-C irradiation (2.1 and 4.5 kJ m-2 ) in a rotating cylindrical system with seven germicidal UV-C lamps and immediately packed in perforated and non-perforated polyethylene terephthalate (PET). The fruit were evaluated for weight loss, total phenolic content, enzyme activities, color indices (L*, a*, b* and browning index), and microbial counts during 35 days of storage at 4 °C. RESULTS UV-C treatment caused a significant decrease (P < 0.05) in the weight loss of fresh pistachios compared to the control. The activity of catalase and peroxidase enzymes was significantly higher (P < 0.05) in irradiated samples packed in non-perforated PET in comparison to those of untreated samples. Irradiation did not inhibit the activity of polyphenol oxidase in treated samples, although a slight decrease in polyphenol oxidase activity was observed in irradiated samples compared to control. The fruit treated with 2.1 kJ m-2 of UV-C and the control packed in non-perforated PET were lighter (L*), redder (a*), and less yellow (b*) compared to 4.5 kJ m-2 treated samples. Furthermore, a dose of 4.5 kJ m-2 UV-C significantly decreased sensory attributes of fresh pistachios compared to the other irradiation level and control. CONCLUSION UV-C irradiation at a dose of 2.1 kJ m-2 and packing in non-perforated PET are recommended for fresh pistachio preservation based on the physicochemical, microbial, and sensory parameters. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Fereshteh-Sadat Hosseini
- Department of Mechanical Engineering of Bio-systems, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Hamid-Reza Akhavan
- Department of Food Science and Technology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Hossein Maghsoudi
- Department of Mechanical Engineering of Bio-systems, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Reza Hajimohammadi-Farimani
- Department of Food Science and Technology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mohammad Balvardi
- Department of Food Science and Technology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
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Li J, Wang T, Jiang XF. Inhibition of miR-337-3p involved in the protection of CoCl 2 -induced injury in PC12 cells via activating JAK2/STAT3 signaling pathway. J Cell Biochem 2019; 120:19076-19086. [PMID: 31264277 DOI: 10.1002/jcb.29230] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 06/06/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To investigate the possibility of microRNA (miR)-337-3p in the protection of hypoxia-induced injury in PC12 cells via modulating the JAK2/STAT3 signaling pathway. METHODS Dual-luciferase reporter assay analyzed the relationship between the miR-337-3p and JAK2. PC12 cells were divided into normal, CoCl2 , CoCl2 + NC, CoCl2 + inhibitors, CoCl2 + JAK2, and CoCl2 + mimics + JAK2 groups. Then, PC12 cell viability and apoptosis were measured by the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) and Annexin-V-fluorescein isothiocyanate/propidium iodide methods. Quantitative real-time polymerase chain reaction and Western blot analysis were used to determine expressions. Besides, the intracellular reactive oxygen species (ROS) was examined by dichloro-dihydro-fluorescein diacetate (DCFH-DA) while the mitochondrial membrane potential (MMP) by using JC-1. RESULTS The negative targeting relationship between miR-337-3p and JAK2 was confirmed. When compared with the normal group, miR-337-3p was increased while JAK2 and STAT3 were decreased in CoCl2 -induced PC12 cells, with decreased cell viability. Moreover, either miR-337-3p inhibitor or JAK2 overexpression could partially reverse CoCl2 -induced decrease in PC12 cell viability. Besides, CoCl2 could also trigger PC12 cell apoptosis by increasing cleaved caspase 3 and Bax but decreasing Bcl-2 and Bcl-XL, which, however, were abolished with the transfection of miR-337-3p inhibitors or lentivirus transfection to activate JAK2. Compared with the CoCl2 group, the average of fluorescent signals of ROS in the CoCl2 + inhibitors group and the CoCl2 + JAK2 group was lower, while the activities of superoxide dismutase, catalase, glutathione peroxidase, and total anti-oxidative capacity were higher, together with an increase in MMP. CONCLUSION Inhibiting miR-337-3p could activate the JAK2/STAT3 signaling pathway to suppress CoCl 2 -induced cytotoxicity and apoptosis and ameliorate oxidative stress and MMP in PC12 cells.
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Affiliation(s)
- Juan Li
- Department of Child Rehabilitation, Affiliated Hospital of Jining Medical College, Jining, China
| | - Ting Wang
- Department of Child Rehabilitation, Affiliated Hospital of Jining Medical College, Jining, China
| | - Xiu-Fang Jiang
- Department of Child Rehabilitation, Affiliated Hospital of Jining Medical College, Jining, China
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Germ M, Stibilj V, Šircelj H, Jerše A, Kroflič A, Golob A, Maršić NK. Biofortification of common buckwheat microgreens and seeds with different forms of selenium and iodine. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:4353-4362. [PMID: 30834531 DOI: 10.1002/jsfa.9669] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/23/2019] [Accepted: 02/28/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND The biofortification of crops can counteract human diseases, including selenium (Se) and iodine (I) deficiencies in the diet. Little is known about the effects of combinations of Se and I on microgreens and seeds, or on their accumulation in these tissues. The present study aimed to evaluate Se (SeO3 2- , SeO4 2- ) and I (I- , IO3 - ) biofortification of common buckwheat microgreens and seeds with respect to the effects of the addition of Se, I and Se + I on yield and on physiological and biochemical characteristics. RESULTS In combination treatments, microgreens yield (600-800 g m-2 ) was 50-70% higher than for Se and I alone. The respiratory potential also increased by 60-120%. Fv /Fm was close to 0.8 in all samples. Se content [0.24 μg g-1 dry weight (DW)] was 50% higher for combination treatments than for Se and I alone. I content was highest for IO3 - treatment (216 μg g-1 DW) and decreased in combination treatments with Se by 50%. CONCLUSION Biofortification of buckwheat microgreens with Se and I should be performed with care because there are synergistic and antagonistic effects of these elements with respect to their accumulation. IO3 - for the biofortification of microgreens should be kept low to prevent exceeding the recommended daily intake of I. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Mateja Germ
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Vekoslava Stibilj
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
- Jožef Stefan Institute, Ljubljana, Slovenia
| | - Helena Šircelj
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Ana Jerše
- Jožef Stefan Institute, Ljubljana, Slovenia
- Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Ana Kroflič
- Jožef Stefan Institute, Ljubljana, Slovenia
- Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Aleksandra Golob
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Nina K Maršić
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Cohen I, Rapaport T, Chalifa-Caspi V, Rachmilevitch S. Synergistic effects of abiotic stresses in plants: a case study of nitrogen limitation and saturating light intensity in Arabidopsis thaliana. PHYSIOLOGIA PLANTARUM 2019; 165:755-767. [PMID: 29786859 DOI: 10.1111/ppl.12765] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 05/11/2018] [Accepted: 05/17/2018] [Indexed: 05/27/2023]
Abstract
Under natural conditions, plants are regularly exposed to combinations of stress factors. A common example is the conjunction between nitrogen (N) deficiency and excess light. The combined effect of stress factors is often ignored in studies using controlled conditions, possibly resulting in misleading conclusions. To address this issue, the present study examined the physiological behavior of Arabidopsis thaliana under the effect of varying nitrogen levels and light intensities. The joint influence of low N and excess light had an adverse effect on plant growth, chlorophyll and anthocyanin concentrations, photochemical capacity and the abundance of proteins involved in carbon assimilation and antioxidative metabolism. In contrast, no adverse physiological responses were observed for plants under either nitrogen limitation or high light (HL) intensity conditions (i.e. single stress). The underlying mechanisms for the increased growth in conditions of HL and sufficient nitrogen were a combination of chlorophyll accumulation and an increased number of proteins involved in C3 carbon assimilation, amino acids biosynthesis and chloroplast development. In contrast, combined stress conditions shifts plants from growth to survival by displaying anthocyanin accumulation and an increased number of proteins involved in catabolism of lipids and amino acids as energy substrates. Ultimately switching plants development from growth to survival. Our results suggest that an assessment of the physiological response to the combined effect of multiple stresses cannot be directly extrapolated from the physiological response to a single stress. Specifically, the synergistic interaction between N deficiency and saturating light in Arabidopsis plants could not have been modeled via only one of the stress factors.
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Affiliation(s)
- Itay Cohen
- The French Associates Institute for Agriculture and Biotechnology of Drylands, The Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva 8499000, Israel
| | - Tal Rapaport
- The French Associates Institute for Agriculture and Biotechnology of Drylands, The Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva 8499000, Israel
| | - Vered Chalifa-Caspi
- The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Shimon Rachmilevitch
- The French Associates Institute for Agriculture and Biotechnology of Drylands, The Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer-Sheva 8499000, Israel
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Zhang C, Gao H, Li R, Han D, Wang L, Wu J, Xu P, Zhang S. GmBTB/POZ, a novel BTB/POZ domain-containing nuclear protein, positively regulates the response of soybean to Phytophthora sojae infection. MOLECULAR PLANT PATHOLOGY 2019; 20:78-91. [PMID: 30113770 PMCID: PMC6430474 DOI: 10.1111/mpp.12741] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Phytophthora sojae is a destructive pathogen of soybean [Glycine max (L.) Merr.] which causes stem and root rot on soybean plants worldwide. However, the pathogenesis and molecular mechanism of plant defence responses against P. sojae are largely unclear. Herein, we document the underlying mechanisms and function of a novel BTB/POZ protein, GmBTB/POZ, which contains a BTB/POZ domain found in certain animal transcriptional regulators, in host soybean plants in response to P. sojae. It is located in the cell nucleus and is transcriptionally up-regulated by P. sojae. Overexpression of GmBTB/POZ in soybean resulted in enhanced resistance to P. sojae. The activities and expression levels of enzymatic superoxide dismutase (SOD) and peroxidase (POD) antioxidants were significantly higher in GmBTB/POZ-overexpressing (GmBTB/POZ-OE) transgenic soybean plants than in wild-type (WT) plants treated with sterile water or infected with P. sojae. The transcript levels of defence-associated genes were also higher in overexpressing plants than in WT on infection. Moreover, salicylic acid (SA) levels and the transcript levels of SA biosynthesis-related genes were markedly higher in GmBTB/POZ-OE transgenic soybean than in WT, but there were almost no differences in jasmonic acid (JA) levels or JA biosynthesis-related gene expression between GmBTB/POZ-OE and WT soybean lines. Furthermore, exogenous SA application induced the expression of GmBTB/POZ and inhibited the increase in P. sojae biomass in both WT and GmBTB/POZ-OE transgenic soybean plants. Taken together, these results suggest that GmBTB/POZ plays a positive role in P. sojae resistance and the defence response in soybean via a process that might be dependent on SA.
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Affiliation(s)
- Chuanzhong Zhang
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
| | - Hong Gao
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
| | - Rongpeng Li
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
| | - Dan Han
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
| | - Le Wang
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
| | - Junjiang Wu
- Soybean Research Institute of Heilongjiang Academy of Agricultural SciencesKey Laboratory of Soybean Cultivation of Ministry of Agriculture P. R. ChinaHarbin150086PR China
| | - Pengfei Xu
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
| | - Shuzhen Zhang
- Soybean Research Institute/Key Laboratory of Soybean Biology of Chinese Education MinistryNortheast Agricultural UniversityHarbin150030PR China
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Pereira DT, Batista D, Filipin EP, Bouzon ZL, Simioni C. Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes. Photochem Photobiol 2018; 95:803-811. [PMID: 30466157 DOI: 10.1111/php.13055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/14/2018] [Indexed: 11/28/2022]
Abstract
Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units responsible for giving rise to the diploid filamentous structure of this alga's life cycle. The present study assesses the anthropogenic impact of ultraviolet radiation (UVR) on morphology and ultrastructure, spore viability, autofluorescence of chloroplasts and the amount of intensity of ROS during the germination of carpospores. Carpospores were cultivated at 24 ± 1°C, 40 ± 10 μmol photons m-2 s-1 with photoperiod of 12 h and exposed to UVAR + UVBR for 3 h a day for 2 days with a daily dose of 5.05 J cm-2 for UVAR and 0.095 J cm-2 for UVBR. Samples were cultured for another five days exposed only to PAR in order to confirm their viability after the initial 2-day exposure. Carpospores showed significant sensitivity to UVR exposure after only 48 h, including changes in developmental rate, overall morphology, cell organization and chloroplast autofluorescence. UVR exposure inhibited germ tube formation in carpospores, which were mostly nonviable and/or altered, showing retracted cytoplasm and disorganized cytoplasmic content. Even in the absence of UVR exposure, carpospores remained collapsed, indicating irreversible damage. It can be concluded that UVR is a limiting factor for the development of P. acanthophora.
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Affiliation(s)
- Débora Tomazi Pereira
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Deonir Batista
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Elisa Poltronieri Filipin
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Zenilda Laurita Bouzon
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Carmen Simioni
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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Fujikawa Y, Suekawa M, Endo S, Fukami Y, Mano S, Nishimura M, Esaka M. Effect of mutation of C-terminal and heme binding region of Arabidopsis catalase on the import to peroxisomes. Biosci Biotechnol Biochem 2018; 83:322-325. [PMID: 30295129 DOI: 10.1080/09168451.2018.1530094] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
We evaluated the import of Arabidopsis catalase to peroxisomes under homogenous transient expression. The amino acids at -11 to -4 from the C-terminus are necessary for catalase import. The results are in agreement with the previous work under stable expression. We first demonstrate that heme-binding sites are important for peroxisomal import, suggesting the importance of catalase folding. Abbreviations: AtCat: Arabidopsis catalase; PTS: peroxisomal targeting signal; PEX: Peroxin.
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Affiliation(s)
- Yukichi Fujikawa
- a Graduate School of Biosphere Sciences , Hiroshima University , Higashi-Hiroshima , Japan
| | - Marina Suekawa
- a Graduate School of Biosphere Sciences , Hiroshima University , Higashi-Hiroshima , Japan
| | - Satoshi Endo
- a Graduate School of Biosphere Sciences , Hiroshima University , Higashi-Hiroshima , Japan
| | - Youjirou Fukami
- a Graduate School of Biosphere Sciences , Hiroshima University , Higashi-Hiroshima , Japan
| | - Shoji Mano
- b Department of Cell Biology , National Institute for Basic Biology , Okazaki , Japan.,c Department of Basic Biology , School of Life Science, SOKENDAI (The Graduate University for Advanced Studies) , Okazaki , Japan
| | - Mikio Nishimura
- d Department of Biology, Faculty of Science and Engineering , Konan University , Kobe , Japan
| | - Muneharu Esaka
- a Graduate School of Biosphere Sciences , Hiroshima University , Higashi-Hiroshima , Japan
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Harre NT, Nie H, Jiang Y, Young BG. Differential antioxidant enzyme activity in rapid-response glyphosate-resistant Ambrosia trifida. PEST MANAGEMENT SCIENCE 2018; 74:2125-2132. [PMID: 29532632 DOI: 10.1002/ps.4909] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 03/03/2018] [Accepted: 03/05/2018] [Indexed: 02/28/2024]
Abstract
BACKGROUND The giant ragweed (Ambrosia trifida L.) rapid-response (RR) biotype exhibits a sacrificial form of glyphosate resistance whereby an oxidative burst in mature leaves results in foliage loss, while juvenile leaves remain uninjured. This work investigated the safening capacity of antioxidant enzymes in RR juvenile leaves following glyphosate treatment and examined cross tolerance to paraquat. RESULTS Basal antioxidant enzyme activities were similar between glyphosate-susceptible (GS) and RR biotypes. Lipid peroxidation was first detected in RR mature leaves at 8 h after treatment (HAT) and by 32 HAT was 5.3 and 21.1 times greater than that in RR juvenile leaves and GS leaves, respectively. Preceding lipid peroxidation in the RR biotype at 2 and 4 HAT, the only increase in enzymatic activity was observed in ascorbate-glutathione cycle enzymes in RR juvenile leaves, particularly ascorbate peroxidase, dehydroascorbate reductase, and glutathione reductase. Sensitivity to paraquat was similar between biotypes. CONCLUSION The RR biotype is not inherently more tolerant to oxidative stress. The difference in tissue damage between RR juvenile and mature leaves following glyphosate treatment is attributable at least partially to the transient increase in antioxidant enzyme expression in juvenile leaves (0-8 HAT), but may also be attributable to lower overall RR induction in juvenile leaves compared with mature leaves. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Nick T Harre
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, USA
| | - Haozhen Nie
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, USA
| | - Yiwei Jiang
- Department of Agronomy, Purdue University, West Lafayette, IN, USA
| | - Bryan G Young
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, USA
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Alam NB, Ghosh A. Comprehensive analysis and transcript profiling of Arabidopsis thaliana and Oryza sativa catalase gene family suggests their specific roles in development and stress responses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 123:54-64. [PMID: 29223068 DOI: 10.1016/j.plaphy.2017.11.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/12/2017] [Accepted: 11/27/2017] [Indexed: 05/05/2023]
Abstract
Stress induces the generation of Reactive Oxygen Species (ROS) that ultimately hampers the growth, development, and productivity of the plant. As an antioxidant enzyme, catalase converts hydrogen peroxide to water and keeps ROS level down to protect cells from stress-induced apoptosis. Here, a genome-wide analysis of catalase gene family has been performed in two model plants- Arabidopsis thaliana and Oryza sativa. Both Arabidopsis and rice has a small family of three and four genes, respectively; that code for seven proteins each. Detailed analysis of these members in terms of their structure, duplication, chromosomal position and proteins subcellular localization, as well as expression profiling under various developmental and environmental cues, was performed. Catalase proteins were mostly found to be localized in the cytoplasm, followed by peroxisome and mitochondria. Phylogenetically plant catalases showed strong divergence from their non-plant counterparts. Expression profiling revealed that AtCAT3 and OsCATA are the constitutively expressive member; while AtCAT2, OsCATA, and OsCATC are the stress-responsive members. Moreover, an altered level of total rice catalase enzyme activity and H2O2 level was observed under various abiotic stress conditions. This indicates the stress-responsive transcriptome as well as proteome alteration of catalase in the plant.
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Affiliation(s)
- Nazmir Binta Alam
- Department of Biochemistry and Molecular Biology, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh
| | - Ajit Ghosh
- Department of Biochemistry and Molecular Biology, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh.
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Activation of catalase activity by a peroxisome-localized small heat shock protein Hsp17.6CII. J Genet Genomics 2017; 44:395-404. [PMID: 28869112 DOI: 10.1016/j.jgg.2017.03.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 03/01/2017] [Accepted: 03/27/2017] [Indexed: 01/02/2023]
Abstract
Plant catalases are important antioxidant enzymes and are indispensable for plant to cope with adverse environmental stresses. However, little is known how catalase activity is regulated especially at an organelle level. In this study, we identified that small heat shock protein Hsp17.6CII (AT5G12020) interacts with and activates catalases in the peroxisome of Arabidopsis thaliana. Although Hsp17.6CII is classified into the cytosol-located small heat shock protein subfamily, we found that Hsp17.6CII is located in the peroxisome. Moreover, Hsp17.6CII contains a novel non-canonical peroxisome targeting signal 1 (PTS1), QKL, 16 amino acids upstream from the C-terminus. The QKL signal peptide can partially locate GFP to peroxisome, and mutations in the tripeptide lead to the abolishment of this activity. In vitro catalase activity assay and holdase activity assay showed that Hsp17.6CII increases CAT2 activity and prevents it from thermal aggregation. These results indicate that Hsp17.6CII is a peroxisome-localized catalase chaperone. Overexpression of Hsp17.6CII conferred enhanced catalase activity and tolerance to abiotic stresses in Arabidopsis. Interestingly, overexpression of Hsp17.6CII in catalase-deficient mutants, nca1-3 and cat2 cat3, failed to rescue their stress-sensitive phenotypes and catalase activity, suggesting that Hsp17.6CII-mediated stress response is dependent on NCA1 and catalase activity. Overall, we identified a novel peroxisome-located catalase chaperone that is involved in plant abiotic stress resistance by activating catalase activity.
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Choudhury FK, Rivero RM, Blumwald E, Mittler R. Reactive oxygen species, abiotic stress and stress combination. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 90:856-867. [PMID: 27801967 DOI: 10.1111/tpj.13299] [Citation(s) in RCA: 1076] [Impact Index Per Article: 153.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/01/2016] [Accepted: 08/04/2016] [Indexed: 05/18/2023]
Abstract
Reactive oxygen species (ROS) play a key role in the acclimation process of plants to abiotic stress. They primarily function as signal transduction molecules that regulate different pathways during plant acclimation to stress, but are also toxic byproducts of stress metabolism. Because each subcellular compartment in plants contains its own set of ROS-producing and ROS-scavenging pathways, the steady-state level of ROS, as well as the redox state of each compartment, is different at any given time giving rise to a distinct signature of ROS levels at the different compartments of the cell. Here we review recent studies on the role of ROS in abiotic stress in plants, and propose that different abiotic stresses, such as drought, heat, salinity and high light, result in different ROS signatures that determine the specificity of the acclimation response and help tailor it to the exact stress the plant encounters. We further address the role of ROS in the acclimation of plants to stress combination as well as the role of ROS in mediating rapid systemic signaling during abiotic stress. We conclude that as long as cells maintain high enough energy reserves to detoxify ROS, ROS is beneficial to plants during abiotic stress enabling them to adjust their metabolism and mount a proper acclimation response.
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Affiliation(s)
- Feroza K Choudhury
- Department of Biological Sciences, College of Arts and Sciences, University of North Texas, 1155 Union Circle #305220, Denton, TX, 76203-5017, USA
| | - Rosa M Rivero
- Department of Plant Nutrition, CEBAS-CSIC, Campus Universitario Espinardo, Ed. 25, 30100, Espinardo, Murcia, Spain
| | - Eduardo Blumwald
- Department of Plant Sciences, Mail Stop 5, University of California, 1 Shields Ave, Davis, CA, 95616, USA
| | - Ron Mittler
- Department of Biological Sciences, College of Arts and Sciences, University of North Texas, 1155 Union Circle #305220, Denton, TX, 76203-5017, USA
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