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Lim C, Kang K, Lim J, Lee H, Cho SH, Paek NC. RICE LONG GRAIN 3 delays dark-induced senescence by downregulating abscisic acid signaling and upregulating reactive oxygen species scavenging activity. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 39378337 DOI: 10.1111/tpj.17061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 09/11/2024] [Accepted: 09/23/2024] [Indexed: 10/10/2024]
Abstract
Leaf senescence is a complex developmental process influenced by abscisic acid (ABA) and reactive oxygen species (ROS), both of which increase during senescence. Understanding the regulatory mechanisms of leaf senescence can provide insights into enhancing crop yield and stress tolerance. In this study, we aimed to elucidate the role and mechanisms of rice (Oryza sativa) LONG GRAIN 3 (OsLG3), an APETALA2/ETHYLENE RESPONSIVE FACTOR (AP2/ERF) transcription factor, in orchestrating dark-induced leaf senescence. The transcript levels of OsLG3 gradually increased during dark-induced and natural senescence. Transgenic plants overexpressing OsLG3 exhibited delayed senescence, whereas CRISPR/Cas9-mediated oslg3 mutants exhibited accelerated leaf senescence. OsLG3 overexpression suppressed senescence-induced ABA signaling by downregulating OsABF4 (an ABA-signaling-related gene) and reduced ROS accumulation by enhancing catalase activity through upregulation of OsCATC. In vivo and in vitro binding assays demonstrated that OsLG3 downregulated OsABF4 and upregulated OsCATC by binding directly to their promoter regions. These results demonstrate the critical role of OsLG3 in fine-tuning leaf senescence progression by suppressing ABA-mediated signaling while simultaneously activating ROS-scavenging mechanisms. These findings suggest that OsLG3 could be targeted to enhance crop resilience and longevity.
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Affiliation(s)
- Chaemyeong Lim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Kiyoon Kang
- Division of Life Sciences, Incheon National University, Incheon, Republic of Korea
| | - Jisun Lim
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Haeun Lee
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sung-Hwan Cho
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Nam-Chon Paek
- Department of Agriculture, Forestry and Bioresources, Plant Genomics and Breeding Institute, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
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Safarzadeh S, Ostovar P, Yasrebi J, Ronaghi A, Eshghi S, Hamidian M. Evaluating phytoremediation potential and nutrients status of Bassia indica (Wight) A. J. Scott (Indian Bassia) in a cadmium-contaminated saline soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:48742-48757. [PMID: 39037621 DOI: 10.1007/s11356-024-34187-9] [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: 10/28/2023] [Accepted: 06/26/2024] [Indexed: 07/23/2024]
Abstract
Bassia indica (Wight) A. J. Scott is a fast-growing halophyte suitable for the remediation of saline lands on a large scale. However, no information is available regarding its phytoremediation potential for cadmium (Cd) alone or in combination with salinity. Besides evaluating phytoremediation, assessing micronutrient hemostasis as a crucial physiological insight into the mechanism involved in the tolerance of B. indica under saline soil contaminated with Cd was subjected. Under salinity stress, a considerable amount of sodium accumulates in the plant. Moreover, the accumulation of sodium increased by Cd stress levels. The increase in the exchangeable form of Cd in the rhizosphere in the presence of NaCl ions further elevated the Cd content in the plant tissues. For instance, compared to non-saline conditions, applying 2.5 and 5 g NaCl kg-1 to soil treated with 60 mg Cd kg-1 increased exchangeable Cd by 28.4 and 49.5% in rhizosphere soil, which led to increased cadmium content by 16.1 and 29.6% in the root (as a main part of Cd accumulation), respectively. Under most stress conditions, potassium homeostasis in the shoot remained undisturbed. It was observed that this plant could transfer an optimal level of potassium from the roots to the shoots at a moderate salinity level. Changes and the distribution of Cu and Zn levels followed a similar pattern in the plant, indicating a common regulation mechanism for these nutrients. Generally, the plant could maintain an appropriate level of Fe, Zn, and Cu ions under most stressed conditions. However, the level of Mn decreased significantly under severe stress levels. Growth parameters, tolerance index, and the values of translocation factor < 1 and shoot bioconcentration factor > 1 under 5 mg Cd kg-1 soil treatment at different salinity levels indicated that B. indica could mitigate the detrimental effect of Cd toxicity and tolerate the NaCl stress via a phytostabilizer mechanism. However, the shoot bioconcentration factor values were very close to one at other Cd levels. Therefore, considering the obtained evidence and the innate ability of B. indica to remediation salinity, this plant is still recommended, even for higher Cd levels (even until 30 mg kg-1), in the presence of salinity.
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Affiliation(s)
- Sedigheh Safarzadeh
- Department of Soil Science, School of Agriculture, Shiraz University, Shiraz, Iran.
| | - Pouya Ostovar
- Department of Soil Science, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Jafar Yasrebi
- Department of Soil Science, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Abdolmajid Ronaghi
- Department of Soil Science, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Saeid Eshghi
- Department of Horticultural Science, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Mohammad Hamidian
- Department of Plant Production and Genetics, School of Agriculture, Shiraz University, Shiraz, Iran
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Behtash F, Mogheri F, Aghaee A, Seyed Hajizadeh H, Kaya O. Role of silicon in alleviating boron toxicity and enhancing growth and physiological traits in hydroponically cultivated Zea mays var. Merit. BMC PLANT BIOLOGY 2024; 24:550. [PMID: 38872083 DOI: 10.1186/s12870-024-05275-2] [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: 04/15/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Boron (B) is a micronutrient, but excessive levels can cause phytotoxicity, impaired growth, and reduced photosynthesis. B toxicity arises from over-fertilization, high soil B levels, or irrigation with B-rich water. Conversely, silicon (Si) is recognized as an element that mitigates stress and alleviates the toxic effects of certain nutrients. In this study, to evaluate the effect of different concentrations of Si on maize under boron stress conditions, a factorial experiment based on a randomized complete block design was conducted with three replications in a hydroponic system. The experiment utilized a nutrient solution for maize var. Merit that contained three different boron (B) concentrations (0.5, 2, and 4 mg L-1) and three Si concentrations (0, 28, and 56 mg L-1). RESULTS Our findings unveiled that exogenous application of B resulted in a substantial escalation of B concentration in maize leaves. Furthermore, B exposure elicited a significant diminution in fresh and dry plant biomass, chlorophyll index, chlorophyll a (Chl a), chlorophyll b (Chl b), carotenoids, and membrane stability index (MSI). As the B concentration augmented, malondialdehyde (MDA) content and catalase (CAT) enzyme activity exhibited a concomitant increment. Conversely, the supplementation of Si facilitated an amelioration in plant fresh and dry weight, total carbohydrate, and total soluble protein. Moreover, the elevated activity of antioxidant enzymes culminated in a decrement in hydrogen peroxide (H2O2) and MDA content. In addition, the combined influence of Si and B had a statistically significant impact on the leaf chlorophyll index, total chlorophyll (a + b) content, Si and B accumulation levels, as well as the enzymatic activities of guaiacol peroxidase (GPX), ascorbate peroxidase (APX), and H2O2 levels. These unique findings indicated the detrimental impact of B toxicity on various physiological and biochemical attributes of maize, while highlighting the potential of Si supplementation in mitigating the deleterious effects through modulation of antioxidant machinery and biomolecule synthesis. CONCLUSIONS This study highlights the potential of Si supplementation in alleviating the deleterious effects of B toxicity in maize. Increased Si consumption mitigated chlorophyll degradation under B toxicity, but it also caused a significant reduction in the concentrations of essential micronutrients iron (Fe), copper (Cu), and zinc (Zn). While Si supplementation shows promise in counteracting B toxicity, the observed decrease in Fe, Cu, and Zn concentrations warrants further investigation to optimize this approach and maintain overall plant nutritional status.
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Affiliation(s)
- Farhad Behtash
- Department of Horticulture, Faculty of Agriculture, University of Maragheh, Maragheh, 55136-553, Iran.
| | - Farima Mogheri
- Department of Horticulture, Faculty of Agriculture, University of Maragheh, Maragheh, 55136-553, Iran
| | - Ahmad Aghaee
- Department of Biology, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Hanifeh Seyed Hajizadeh
- Department of Horticulture, Faculty of Agriculture, University of Maragheh, Maragheh, 55136-553, Iran.
| | - Ozkan Kaya
- Erzincan Horticultural Research Institute, Republic of Turkey Ministry of Agriculture and Forestry, Erzincan, 24060, Turkey.
- Department of Plant Sciences, North Dakota State University, Fargo, ND, 58102, USA.
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Gao X, Du Z, Hao K, Zhang S, Li J, Guo J, Wang Z, Zhao S, Sang L, An M, Xia Z, Wu Y. ZmmiR398b negatively regulates maize resistance to sugarcane mosaic virus infection by targeting ZmCSD2/4/9. MOLECULAR PLANT PATHOLOGY 2024; 25:e13462. [PMID: 38695630 PMCID: PMC11064800 DOI: 10.1111/mpp.13462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/10/2024] [Accepted: 04/10/2024] [Indexed: 05/05/2024]
Abstract
MicroRNAs (miRNAs) are widely involved in various biological processes of plants and contribute to plant resistance against various pathogens. In this study, upon sugarcane mosaic virus (SCMV) infection, the accumulation of maize (Zea mays) miR398b (ZmmiR398b) was significantly reduced in resistant inbred line Chang7-2, while it was increased in susceptible inbred line Mo17. Degradome sequencing analysis coupled with transient co-expression assays revealed that ZmmiR398b can target Cu/Zn-superoxidase dismutase2 (ZmCSD2), ZmCSD4, and ZmCSD9 in vivo, of which the expression levels were all upregulated by SCMV infection in Chang7-2 and Mo17. Moreover, overexpressing ZmmiR398b (OE398b) exhibited increased susceptibility to SCMV infection, probably by increasing reactive oxygen species (ROS) accumulation, which were consistent with ZmCSD2/4/9-silenced maize plants. By contrast, silencing ZmmiR398b (STTM398b) through short tandem target mimic (STTM) technology enhanced maize resistance to SCMV infection and decreased ROS levels. Interestingly, copper (Cu)-gradient hydroponic experiments demonstrated that Cu deficiency promoted SCMV infection while Cu sufficiency inhibited SCMV infection by regulating accumulations of ZmmiR398b and ZmCSD2/4/9 in maize. These results revealed that manipulating the ZmmiR398b-ZmCSD2/4/9-ROS module provides a prospective strategy for developing SCMV-tolerant maize varieties.
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Affiliation(s)
- Xinran Gao
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Zhichao Du
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Kaiqiang Hao
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Sijia Zhang
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Jian Li
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Jinxiu Guo
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Zhiping Wang
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Shixue Zhao
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Lijun Sang
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Mengnan An
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Zihao Xia
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Yuanhua Wu
- Liaoning Key Laboratory of Plant Pathology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
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Chen J, Wang J, Liu L, Pei Y, Liu Z, Feng X, Li X. Transcriptomic and metabolomic profiling provide insight into the role of sugars and hormones in leaf senescence of Pinellia ternata. PLANT CELL REPORTS 2024; 43:125. [PMID: 38647720 DOI: 10.1007/s00299-024-03222-x] [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: 03/08/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
KEY MESSAGE The interaction network and pathway map uncover the potential crosstalk between sugar and hormone metabolisms as a possible reason for leaf senescence in P. ternata. Pinellia ternata, an environmentally sensitive medicinal plant, undergoes leaf senescence twice a year, affecting its development and yield. Understanding the potential mechanism that delays leaf senescence could theoretically decrease yield losses. In this study, a typical senescent population model was constructed, and an integrated analysis of transcriptomic and metabolomic profiles of P. ternata was conducted using two early leaf senescence populations and two stay-green populations. The result showed that two key gene modules were associated with leaf senescence which were mainly enriched in sugar and hormone signaling pathways, respectively. A network constructed by unigenes and metabolisms related to the obtained two pathways revealed that several compounds such as D-arabitol and 2MeScZR have a higher significance ranking. In addition, a total of 130 hub genes in this network were categorized into 3 classes based on connectivity. Among them, 34 hub genes were further analyzed through a pathway map, the potential crosstalk between sugar and hormone metabolisms might be an underlying reason of leaf senescence in P. ternata. These findings address the knowledge gap regarding leaf senescence in P. ternata, providing candidate germplasms for molecular breeding and laying theoretical basis for the realization of finely regulated cultivation in future.
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Affiliation(s)
- Jialei Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Pharmacy, Henan University of Chinese Traditional Medicine, Zhengzhou, China
| | - Jialu Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- School of Pharmacy, Guizhou University of Chinese Traditional Medicine, Guiyang, China
| | - Yifei Pei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Ziyi Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xue Feng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Xiwen Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
- School of Pharmacy, Henan University of Chinese Traditional Medicine, Zhengzhou, China.
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6
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Cao Y, Yan H, Sheng M, Liu Y, Yu X, Li Z, Xu W, Su Z. KAKU4 regulates leaf senescence through modulation of H3K27me3 deposition in the Arabidopsis genome. BMC PLANT BIOLOGY 2024; 24:177. [PMID: 38448830 PMCID: PMC10919013 DOI: 10.1186/s12870-024-04860-9] [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: 12/10/2023] [Accepted: 02/23/2024] [Indexed: 03/08/2024]
Abstract
Lamins are the major components of the nuclear lamina, which regulate chromatin structure and gene expression. KAKU4 is a unique nuclear lamina component in the nuclear periphery, modulates nuclear shape and size in Arabidopsis. The knowledge about the regulatory role of KAKU4 in leaf development remains limited. Here we found that knockdown of KAKU4 resulted in an accelerated leaf senescence phenotype, with elevated levels of H2O2 and hormones, particularly SA, JA, and ABA. Our results demonstrated the importance of KAKU4 as a potential negative regulator in age-triggered leaf senescence in Arabidopsis. Furthermore, we conducted combination analyses of transcriptomic and epigenomic data for the kaku4 mutant and WT leaves. The knockdown of KAKU4 lowered H3K27me3 deposition in the up-regulated genes associated with hormone pathways, programmed cell death, and leaf senescence, including SARD1, SAG113/HAI1, PR2, and so forth. In addition, we found the functional crosstalks between KAKU4 and its associated proteins (CRWN1/4, PNET2, GBPL3, etc.) through comparing multiple transcriptome datasets. Overall, our results indicated that KAKU4 may inhibit the expression of a series of genes related to hormone signals and H2O2 metabolism by affecting the deposition of H3K27me3, thereby suppressing leaf senescence.
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Affiliation(s)
- Yaxin Cao
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Hengyu Yan
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Minghao Sheng
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yue Liu
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Xinyue Yu
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhongqiu Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Wenying Xu
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhen Su
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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Fan J, Zhang H, Shi Y, Li Y, He Y, Wang Q, Liu S, Yao Y, Zhou X, Liao J, Huang Y, Wang Z. Systematic identification and characterization of microRNAs with target genes involved in high night temperature stress at the filling stage of rice. PHYSIOLOGIA PLANTARUM 2024; 176:e14305. [PMID: 38659134 DOI: 10.1111/ppl.14305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/26/2024]
Abstract
High night temperature stress is one of the main environmental factors affecting rice yield and quality. More and more evidence shows that microRNA (miRNA) plays an important role in various abiotic stresses. However, the molecular network of miRNA regulation on rice tolerance to high night temperatures remains unclear. Here, small RNA, transcriptome and degradome sequencing were integrated to identify differentially expressed miRNAs, genes, and key miRNA-target gene pairs in rice heat-sensitive and heat-tolerant lines at the filling stage suffering from high night temperature stress. It was discovered that there were notable differences in the relative expression of 102 miRNAs between the two rice lines under stress. Meanwhile, 5263 and 5405 mRNAs were differentially expressed in the heat-sensitive line and heat-tolerant line, and functional enrichment analysis revealed that these genes were involved in heat-related processes and pathways. The miRNAs-mRNAs target relationship was further verified by degradome sequencing. Eventually, 49 miRNAs-222 mRNAs target pairs with reverse expression patterns showed significant relative expression changes between the heat-tolerant and the heat-sensitive line, being suggested to be responsible for the heat tolerance difference of these two rice lines. Functional analysis of these 222 mRNA transcripts showed that high night temperature-responsive miRNAs targeted these mRNAs involved in many heat-related biological processes, such as transcription regulation, chloroplast regulation, mitochondrion regulation, protein folding, hormone regulation and redox process. This study identified possible miRNA-mRNA regulation relationships in response to high night temperature stress in rice and potentially contributed to heat resistance breeding of rice in the future.
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Affiliation(s)
- Jiangmin Fan
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Hongyu Zhang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Yan Shi
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Yuewu Li
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Yuxiang He
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Qiang Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Siyi Liu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Youmin Yao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Xiaoya Zhou
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Jianglin Liao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Yingjin Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
| | - Zhaohai Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding (Jiangxi Agricultural University), Ministry of Education of the P.R. China, Nanchang, Jiangxi Province, China
- Key Laboratory of Agriculture Responding to Climate Change (Jiangxi Agricultural University), Nanchang, Jiangxi Province, China
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8
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Zsigmond L, Juhász-Erdélyi A, Valkai I, Aleksza D, Rigó G, Kant K, Szepesi Á, Fiorani F, Körber N, Kovács L, Szabados L. Mitochondrial complex I subunit NDUFS8.2 modulates responses to stresses associated with reduced water availability. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108466. [PMID: 38428158 DOI: 10.1016/j.plaphy.2024.108466] [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: 10/11/2023] [Revised: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
Mitochondria are important sources of energy in plants and are implicated in coordination of a number of metabolic and physiological processes including stabilization of redox balance, synthesis and turnover of a number of metabolites, and control of programmed cell death. Mitochondrial electron transport chain (mETC) is the backbone of the energy producing process which can influence other processes as well. Accumulating evidence suggests that mETC can affect responses to environmental stimuli and modulate tolerance to extreme conditions such as drought or salinity. Screening for stress responses of 13 Arabidopsis mitochondria-related T-DNA insertion mutants, we identified ndufs8.2-1 which has an increased ability to withstand osmotic and oxidative stresses compared to wild type plants. Insertion in ndufs8.2-1 disrupted the gene that encodes the NADH dehydrogenase [ubiquinone] fragment S subunit 8 (NDUFS8) a component of Complex I of mETC. ndufs8.2-1 tolerated reduced water availability, retained photosynthetic activity and recovered from severe water stress with higher efficiency compared to wild type plants. Several mitochondrial functions were altered in the mutant including oxygen consumption, ROS production, ATP and ADP content as well as activities of genes encoding alternative oxidase 1A (AOX1A) and various alternative NAD(P)H dehydrogenases (ND). Our results suggest that in the absence of NDUFS8.2 stress-induced ROS generation is restrained leading to reduced oxidative damage and improved tolerance to water deficiency. mETC components can be implicated in redox and energy homeostasis and modulate responses to stresses associated with reduced water availability.
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Affiliation(s)
- Laura Zsigmond
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary.
| | - Annabella Juhász-Erdélyi
- Department of Plant Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Ildikó Valkai
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Dávid Aleksza
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Gábor Rigó
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Kamal Kant
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - Ágnes Szepesi
- Department of Plant Biology, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Fabio Fiorani
- Institute of Bio- and Geo-Sciences, IBG2: Plant Sciences, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Niklas Körber
- Nunhems - BASF Vegetable Seeds, Department of Data Science and Technology, Roermond, Netherlands
| | - László Kovács
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
| | - László Szabados
- Institute of Plant Biology, HUN-REN Biological Research Centre, Szeged, Hungary
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9
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Yu Y, Wang S, Guo W, Geng M, Sun Y, Li W, Yao G, Zhang D, Zhang H, Hu K. Hydrogen Peroxide Promotes Tomato Leaf Senescence by Regulating Antioxidant System and Hydrogen Sulfide Metabolism. PLANTS (BASEL, SWITZERLAND) 2024; 13:475. [PMID: 38498463 PMCID: PMC10891886 DOI: 10.3390/plants13040475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/21/2024] [Accepted: 02/05/2024] [Indexed: 03/20/2024]
Abstract
Hydrogen peroxide (H2O2) is relatively stable among ROS (reactive oxygen species) and could act as a signal in plant cells. In the present work, detached tomato leaves were treated with exogenous H2O2 at 10 mmol/L for 8 h to study the mechanism of how H2O2 regulates leaf senescence. The data indicated that H2O2 treatment significantly accelerated the degradation of chlorophyll and led to the upregulation of the expression of leaf senescence-related genes (NYC1, PAO, PPH, SGR1, SAG12 and SAG15) during leaf senescence. H2O2 treatment also induced the accumulation of H2O2 and malondialdehyde (MDA), decreased POD and SOD enzyme activities and inhibited H2S production by reducing the expression of LCD1/2 and DCD1/2. A correlation analysis indicated that H2O2 was significantly and negatively correlated with chlorophyll, the expression of leaf senescence-related genes, and LCD1/2 and DCD1/2. The principal component analysis (PCA) results show that H2S showed the highest load value followed by O2•-, H2O2, DCD1, SAG15, etc. Therefore, these findings provide a basis for studying the role of H2O2 in regulating detached tomato leaf senescence and demonstrated that H2O2 plays a positive role in the senescence of detached leaves by repressing antioxidant enzymes and H2S production.
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Affiliation(s)
- Yue Yu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Siyue Wang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Wentong Guo
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Meihui Geng
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Ying Sun
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Wanjie Li
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Science, Beijing Normal University, Beijing 100875, China;
| | - Gaifang Yao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Danfeng Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Hua Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
| | - Kangdi Hu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China; (Y.Y.); (S.W.); (D.Z.)
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10
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Wu R, Pan X, Li W, Zhang Z, Guo Y. Phosphorylation of Thr-225 and Ser-262 on ERD7 Promotes Age-Dependent and Stress-Induced Leaf Senescence through the Regulation of Hydrogen Peroxide Accumulation in Arabidopsis thaliana. Int J Mol Sci 2024; 25:1328. [PMID: 38279327 PMCID: PMC10815956 DOI: 10.3390/ijms25021328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024] Open
Abstract
As the final stage of leaf development, leaf senescence is affected by a variety of internal and external signals including age and environmental stresses. Although significant progress has been made in elucidating the mechanisms of age-dependent leaf senescence, it is not clear how stress conditions induce a similar process. Here, we report the roles of a stress-responsive and senescence-induced gene, ERD7 (EARLY RESPONSIVE TO DEHYDRATION 7), in regulating both age-dependent and stress-induced leaf senescence in Arabidopsis. The results showed that the leaves of erd7 mutant exhibited a significant delay in both age-dependent and stress-induced senescence, while transgenic plants overexpressing the gene exhibited an obvious accelerated leaf senescence. Furthermore, based on the results of LC-MS/MS and PRM quantitative analyses, we selected two phosphorylation sites, Thr-225 and Ser-262, which have a higher abundance during senescence, and demonstrated that they play a key role in the function of ERD7 in regulating senescence. Transgenic plants overexpressing the phospho-mimetic mutant of the activation segment residues ERD7T225D and ERD7T262D exhibited a significantly early senescence, while the inactivation segment ERD7T225A and ERD7T262A displayed a delayed senescence. Moreover, we found that ERD7 regulates ROS accumulation by enhancing the expression of AtrbohD and AtrbohF, which is dependent on the critical residues, i.e., Thr-225 and Ser-262. Our findings suggest that ERD7 is a positive regulator of senescence, which might function as a crosstalk hub between age-dependent and stress-induced leaf senescence.
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Affiliation(s)
- Rongrong Wu
- College of Agriculture, Qingdao Agricultural University, Qingdao 266000, China;
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266000, China; (X.P.); (W.L.)
| | - Xiaolu Pan
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266000, China; (X.P.); (W.L.)
| | - Wei Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266000, China; (X.P.); (W.L.)
| | - Zenglin Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266000, China; (X.P.); (W.L.)
| | - Yongfeng Guo
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266000, China; (X.P.); (W.L.)
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11
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Saebi MR, Moradinezhad F, Ansarifar E. Quality preservation and decay reduction of minimally processed seedless barberry fruit via postharvest ultrasonic treatment. Food Sci Nutr 2023; 11:7816-7825. [PMID: 38107101 PMCID: PMC10724632 DOI: 10.1002/fsn3.3698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 12/19/2023] Open
Abstract
Seedless barberry fruit is one of the important horticultural products of Iran, which has health benefits due to great amounts of phenolic compounds, flavonoids, and antioxidant activity. However, fresh barberry fruit has a short shelf life even at cold storage, mainly due to high water content and thin skin that leads to fungal decay and high postharvest loss. We examined the effectiveness of the postharvest ultrasonic technology on the quality preservation and nutritional value of fresh seedless barberry fruit and their decay reduction during cold storage. Experimental treatments were the time and temperature of ultrasound (US) and included: (1) control, fruit without US, (2) 5 min US at 20°C, (3) 5 min US at 30°C, (4) 5 min US at 40°C, (5) 10 min US at 20°C, (6) 10 min US at 30°C, (7) 10 min US at 40°C, (8) 15 min US at 20°C, (9) 15 min US at 30°C, and (10) 15 min US at 40°C. After applying the treatments, the fruits were sealed in polyethylene bags and stored at 4 ± 1°C for 20 days. The results showed that all US treatments had higher titratable acidity, antioxidant activity, phenol content, and vitamin C content than the control. However, the highest titratable acidity and antioxidant activity values were obtained in US treatments at 40°C and 30°C for 15 min. Also, US treatment significantly reduced the total soluble solids, decay percentage, and microbial load of fresh barberry fruit. As the US treatment temperature increased from 20°C to 40°C, the decay and microbial load of fruit significantly decreased. In conclusion, this study proved the potential application of the US for preserving the quality of fresh seedless barberry fruit, and the most optimal US temperature and its application time was 40°C for 15 min.
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Affiliation(s)
- Mohammad Reza Saebi
- Department of Horticultural Science, Faculty of AgricultureUniversity of BirjandBirjandIran
| | - Farid Moradinezhad
- Department of Horticultural Science, Faculty of AgricultureUniversity of BirjandBirjandIran
| | - Elham Ansarifar
- Department of Public Health, School of Health, Social Determinants of Health Research CenterBirjand University of Medical ScienceBirjandIran
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12
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Xie Z, Zhang Q, Xia C, Dong C, Li D, Liu X, Kong X, Zhang L. Identification of the early leaf senescence gene ELS3 in bread wheat (Triticum aestivum L.). PLANTA 2023; 259:5. [PMID: 37994951 DOI: 10.1007/s00425-023-04278-x] [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: 08/07/2023] [Accepted: 10/31/2023] [Indexed: 11/24/2023]
Abstract
MAIN CONCLUSION Characterization of the early leaf senescence mutant els3 and identification of its causal gene ELS3, which encodes an LRR-RLK protein in wheat. Leaf senescence is an important agronomic trait that affects both crop yield and quality. However, few senescence-related genes in wheat have been cloned and functionally analyzed. Here, we report the characterization of the early leaf senescence mutant els3 and fine mapping of its causal gene ELS3 in wheat. Compared with wild-type Yanzhan4110 (YZ4110), the els3 mutant had a decreased chlorophyll content and a degraded chloroplast structure after the flowering stage. Further biochemical assays in flag leaves showed that the superoxide anion and hydrogen peroxide contents increased, while the activities of antioxidant enzymes, including catalase, superoxide dismutase and glutathione reductase, decreased gradually after the flowering stage in the els3 mutant. To clone the causal gene underlying the phenotype of leaf senescence, a genetic map was constructed using 10,133 individuals of F2:3 populations, and ELS3 was located in a 2.52 Mb region on chromosome 2DL containing 16 putative genes. Subsequent sequence analysis and gene annotation identified only one SNP (C to T) in the first exon of TraesCS2D02G332700, resulting in an amino acid substitution (Pro329Ser), and TraesCS2D02G332700 was preliminarily considered as the candidate gene of ELS3. ELS3 encodes a leucine-rich repeat receptor-like kinase (LRR-RLK) protein that is localized on the cell membrane. We also found that the transient expression of mutant TraesCS2D02G332700 can induce leaf senescence in N. benthamiana. Taken together, TraesCS2D02G332700 is likely to be the candidate gene of ELS3 and may have a function in regulating leaf senescence.
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Affiliation(s)
- Zhencheng Xie
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qiang Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006, Zhejiang, China
| | - Chuan Xia
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chunhao Dong
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Danping Li
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xu Liu
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Xiuying Kong
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Lichao Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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13
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Önder D. Variation in antioxidant capacity, antioxidant activity and mineral composition during flower development of oil-bearing rose (Rosa damascena Mill.). Sci Rep 2023; 13:17255. [PMID: 37828040 PMCID: PMC10570392 DOI: 10.1038/s41598-023-44461-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023] Open
Abstract
Oil-bearing rose is an economically important rose species with a wide range of uses such as cosmetics, perfumery, food and health, but the changes in antioxidant capacity and antioxidant activity during flower development are not well understood. The antioxidant content and free radical scavenging properties of oil-bearing rose flowers are used in the cosmetic industry to modulate skin damage, and in the food industry as a source of antioxidants and sweeteners. The present investigation was carried out to explore the antioxidant capacity, antioxidant enzyme activity, and the composition and distribution of minerals in petals of oil-bearing rose at five flower development stages. The total antioxidant capacity of petals was determined using CUPRAC, DPPH, FRAP, FIC and ABTS methods. The antioxidant capacity of petals decreased during the flower development, suggesting that flowers in stage I and II are valuable sources of antioxidants. CUPRAC, DPPH, FRAP, FIC and ABTS scavenging activity of the petals at various developmental stages are strongly and positively correlated with each other. The activity of the antioxidant enzymes; superoxide dismutase, catalase, glutathione reductase, ascorbate peroxidase was highest at the bud stage (stage I), whereas the fully opened flowers (stage V) exhibited the lowest activity in oil-bearing rose petals. During the development of flower, malondialdehyde (MDA) content increased significantly from stage I to stage III and decreased at stage IV. Here we detected the contents of 15 elements in petals, some of them, especially calcium, magnesium, potassium and phosphorus showed significant changes during rose flowering. Generally, the highest mineral content was observed in stage I while the lowest content observed in stage V of flower development. These results showed a close link between flower development, antioxidant capacity, enzymatic antioxidant activity and mineral content, with stage I exhibiting the best antioxidant activity, mineral content and free radical scavenging potential. This work will serve as a baseline for understanding the possible roles of antioxidant capacity, antioxidant enzymes, mineral content and their interactions in the regulation of flower development.
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Affiliation(s)
- Damla Önder
- Department of Biology, Faculty of Arts and Sciences, Süleyman Demirel University, Isparta, 32260, Turkey.
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14
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Devi S, Manhas RK. Induction of systemic resistance in Solanum lycopersicum and Capsicum annum seedlings against Fusarium wilt by Streptomyces bioformulations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:109438-109452. [PMID: 37775628 DOI: 10.1007/s11356-023-29973-w] [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: 05/26/2023] [Accepted: 09/15/2023] [Indexed: 10/01/2023]
Abstract
Plant diseases induced by various phytopathogens pose a significant threat to contemporary agricultural systems around the world. In modern agriculture, the use of pesticides is still a valuable and effective method to control plant diseases. However, agrochemicals are becoming less popular because of the accretion of toxic compounds perilous and potentially hazardous to humans and the environment. Taking into consideration these aspects, the present study was conducted to explore the biocontrol potential of an endophytic Streptomyces sp. SP5 bioformulations against Fusarium wilt. Three bioformulations were prepared using cell biomass and different carriers, i.e., B1 (talc-kaolin), B2 (MgSO4/glycerol/Na-alginate/talc/Ca-lignosulfonate), and B3 (calcium carbonate/CMC/talc). Apart from antagonistic action against Fusarium wilt, the influence of bioformulations on plant growth and systemic resistance was investigated by analyzing morphological parameters (root length, shoot length, root weight, shoot weight), biochemical parameters (photosynthetic pigments, non-enzymatic antioxidants), and induction of antioxidative enzymes, e.g., catalase (CAT), ascorbate peroxidase (APX), guaiacol peroxidase (GPX), and superoxide dismutase (SOD), in S. lycopersicum and C. annum seedlings. The results revealed that Streptomyces bioformulations effectively controlled Fusarium wilt in S. lycopersicum and C. annum (82.6-83.4% and 81.8-100%, respectively). Besides reducing disease prevalence, bioformulations significantly increased all the morphological parameters and increased the activity of antioxidative enzymes, i.e., CAT, APX, GPX, and SOD, in plants. The current findings display that bioformulations can be utilized as environment-friendly biocontrol agents against Fusarium wilt and also as plant growth promoters.
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Affiliation(s)
- Sapna Devi
- Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Rajesh Kumari Manhas
- Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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15
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Gao Y, Shi X, Chang Y, Li Y, Xiong X, Liu H, Li M, Li W, Zhang X, Fu Z, Xue Y, Tang J. Mapping the gene of a maize leaf senescence mutant and understanding the senescence pathways by expression analysis. PLANT CELL REPORTS 2023; 42:1651-1663. [PMID: 37498331 DOI: 10.1007/s00299-023-03051-4] [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: 04/03/2023] [Accepted: 07/12/2023] [Indexed: 07/28/2023]
Abstract
KEY MESSAGES Narrowing down to a single putative target gene behind a leaf senescence mutant and constructing the regulation network by proteomic method. Leaf senescence mutant is an important resource for exploring molecular mechanism of aging. To dig for potential modulation networks during maize leaf aging process, we delimited the gene responsible for a premature leaf senescence mutant els5 to a 1.1 Mb interval in the B73 reference genome using a BC1F1 population with 40,000 plants, and analyzed the leaf proteomics of the mutant and its near-isogenic wild type line. A total of 1355 differentially accumulated proteins (DAP) were mainly enriched in regulation pathways such as "photosynthesis", "ribosome", and "porphyrin and chlorophyll metabolism" by the KEGG pathway analysis. The interaction networks constructed by incorporation of transcriptome data showed that ZmELS5 likely repaired several key factors in the photosynthesis system. The putative candidate proteins for els5 were proposed based on DAPs in the fined QTL mapping interval. These results provide fundamental basis for cloning and functional research of the els5 gene, and new insights into the molecular mechanism of leaf senescence in maize.
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Affiliation(s)
- Yong Gao
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xia Shi
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yongyuan Chang
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yingbo Li
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xuehang Xiong
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Hongmei Liu
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Mengyuan Li
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Weihua Li
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Xuehai Zhang
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Zhiyuan Fu
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yadong Xue
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Jihua Tang
- State Key Laboratory of Wheat and Maize Crop Science, College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China.
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16
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Huang W, Jiao B, Ji C, Peng Q, Zhou J, Yang Y, Xi D. Catalases mediate tobacco resistance to virus infection through crosstalk between salicylic acid and auxin signaling pathways. PHYSIOLOGIA PLANTARUM 2023; 175:e14012. [PMID: 37882268 DOI: 10.1111/ppl.14012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/09/2023] [Indexed: 10/27/2023]
Abstract
Catalases (CATs) play important roles in plant growth, development and defense responses. Previous studies have shown that CATs exhibit different or even opposite effects on plant immunity in different plant-pathogen interactions, but little is known about the mechanisms. In this study, Nicotiana tabacum plants with overexpression or knockout of CAT genes, tobacco mosaic virus (TMV) and cucumber mosaic virus (CMV) were employed to investigate the role of CAT in compatible plant-virus interactions. The results showed that there were dynamic changes in the effect of CAT on N. tabacum defense responses. Overexpression of catalase 1 (CAT1) and catalase 3 (CAT3) improved N. tabacum resistance in the early stage of virus infection but depressed it during the late stages of pathogenesis, especially in CAT3 overexpressing plants. The lower level of electrolyte leakage, lower contents of malonaldehyde and hydrogen peroxide (H2 O2 ), higher activities of antioxidant enzymes and improved functions of photosystem II corresponded to the milder symptoms and higher resistance of infected tobacco plants. In addition, the infection of TMV and CMV resulted in expression changes of CATs in tobacco plants, and pretreatment with H2 O2 facilitated TMV and CMV infection. Further experiments showed that the content of salicylic acid (SA) and the expression of genes related to SA signaling pathway were positively correlated with plant resistance, whereas auxin and its related signaling pathway were related to the viral susceptibility of plants. Taken together, our results demonstrated that CAT1 and CAT3 mediated tobacco resistance to virus infection through crosstalk between SA and auxin signaling pathways.
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Affiliation(s)
- Wanying Huang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Bolei Jiao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Chenglong Ji
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Qiding Peng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Jingya Zhou
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yiting Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Dehui Xi
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan, People's Republic of China
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17
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Kumar R, Adhikary A, Saini R, Khan SA, Yadav M, Kumar S. Drought priming induced thermotolerance in wheat (Triticum aestivum L.) during reproductive stage; a multifaceted tolerance approach against terminal heat stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107840. [PMID: 37379659 DOI: 10.1016/j.plaphy.2023.107840] [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: 02/02/2023] [Revised: 04/18/2023] [Accepted: 06/13/2023] [Indexed: 06/30/2023]
Abstract
In wheat (Triticum aestivum L.), terminal heat stress obstructs reproductive functioning eventually leading to yield loss. Drought priming during the vegetative stage can trigger a quicker and effective defense response against impending high temperature stress and improve crop production. In the present study, two contrasting wheat cultivars (PBW670 and C306) were subjected to moderate drought stress of 50-55% field capacity for eight days during the jointing stage to generate drought priming (DP) response. Fifteen days after anthesis heat stress (36 °C) was imposed for three days and physiological response of primed, and non-primed plants was assessed by analyzing membrane damage, water status and antioxidative enzymes. Heat shock transcription factors (14 TaHSFs), calmodulin (TaCaM5), antioxidative genes (TaSOD, TaPOX), polyamine biosynthesis genes and glutathione biosynthesis genes were analyzed. GC-MS based untargeted metabolite profiling was carried out to underpin the associated metabolic changes. Yield related parameters were recorded at maturity to finally assess the priming response. Heat stress response was visible from day one of exposure in terms of membrane damage and elevated antioxidative enzymes activity. DP reduced the impact of heat stress by lowering the membrane damage (ELI, MDA & LOX) and enhancing antioxidative enzyme activity except APX in both the cultivars. Drought priming upregulated the expression of HSFs, calmodulin, antioxidative genes, polyamines, and the glutathione biosynthesis genes. Drought priming altered key amino acids, carbohydrate, and fatty acid metabolism in PBW670 but also promoted thermotolerance in C306. Overall, DP provided a multifaceted approach against heat stress and positive association with yield.
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Affiliation(s)
- Rashpal Kumar
- Centre for Biosciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Arindam Adhikary
- Centre for Biosciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Rashmi Saini
- Centre for Biosciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Shahied Ahmed Khan
- Department of Botany, School of Basic Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Manisha Yadav
- Department of Botany, School of Basic Sciences, Central University of Punjab, Bathinda, 151401, India
| | - Sanjeev Kumar
- Centre for Biosciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, 151401, India; Department of Botany, School of Basic Sciences, Central University of Punjab, Bathinda, 151401, India.
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18
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Chamani M, Naseri B, Rafiee-Dastjerdi H, Emaratpardaz J, Ebadollahi A, Palla F. Some Physiological Effects of Nanofertilizers on Wheat-Aphid Interactions. PLANTS (BASEL, SWITZERLAND) 2023; 12:2602. [PMID: 37514217 PMCID: PMC10385016 DOI: 10.3390/plants12142602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/24/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023]
Abstract
The increasing use of nanofertilizers in modern agriculture and their impact on crop yield and pest management require further research. In this study, the effects of nano-Fe, -Zn, and -Cu (which are synthesized based on nanochelating technology), and urea (N) fertilizers on the antioxidant activities of wheat plants (cv. Chamran), and the wheat green aphid Schizaphis graminum (Rondani) are investigated. The authors observed the highest levels of phenolics in non-infested nano-Zn-treated plants (26% higher compared with control). The highest H2O2 levels are in the infested and non-infested nano-Zn-treated and infested nano-Fe-treated plants (in infested nano-Zn and nano-Fe treated plants, 18% and non-infested nano-Zn-treated plants, 28% higher compared with control). The highest peroxidase (POX) activity is observed in the infested and non-infested N-treated and non-infested water-treated plants (almost 14%, 37%, and 46% higher than control, respectively). The lowest activity is in the infested plants' nano-Zn and -Fe treatments (almost 7 and 5 folds lower compared to the control, respectively). The highest and lowest catalase (CAT) activity are in the infested N-treated plants (almost 42% higher than control) and water-treated plants, respectively. The infested nano-Zn, -Fe, -Cu and Hoagland-treated plants showed the highest superoxide dismutase (SOD) activity. Regarding the antioxidant enzyme activities of S. graminum, the highest POX activity is in the nano-Cu treatment (more than two folds higher compared with control); the highest CAT and SOD activities are in the nano-Cu and -Zn treatments. It can be concluded that the application of nanofertilizers caused increasing effects on the wheat plant's antioxidant system and its resistance to S. graminum.
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Affiliation(s)
- Masoud Chamani
- Department of Plant Protection, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 5619911367, Iran
| | - Bahram Naseri
- Department of Plant Protection, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 5619911367, Iran
| | - Hooshang Rafiee-Dastjerdi
- Department of Plant Protection, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 5619911367, Iran
| | - Javid Emaratpardaz
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, University of Tabriz, Tabriz 5137779619, Iran
| | - Asgar Ebadollahi
- Department of Plant Sciences, Moghan College of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil 5697194781, Iran
| | - Franco Palla
- Department of Biological, Chemical and Pharmacological Sciences and Technology-Botany Section, The University of Palermo, 38-90123 Palermo, Italy
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19
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Han X, Zhang D, Hao H, Luo Y, Zhu Z, Kuai B. Transcriptomic Analysis of Three Differentially Senescing Maize ( Zea mays L.) Inbred Lines upon Heat Stress. Int J Mol Sci 2023; 24:9782. [PMID: 37372930 DOI: 10.3390/ijms24129782] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/28/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023] Open
Abstract
Maize, one of the world's major food crops, is facing the challenge of rising temperature. Leaf senescence is the most significant phenotypic change of maize under heat stress at the seedling stage, but the underlying molecular mechanism is still unknown. Here, we screened for three inbred lines (PH4CV, B73, and SH19B) that showed differentially senescing phenotypes under heat stress. Among them, PH4CV showed no obviously senescing phenotype under heat stress, while SH19B demonstrated a severely senescing phenotype, with B73 being between the two extremes. Subsequently, transcriptome sequencing showed that differentially expressed genes (DEGs) were generally enriched in response to heat stress, reactive oxygen species (ROS), and photosynthesis in the three inbred lines under heat treatment. Notably, ATP synthesis and oxidative phosphorylation pathway genes were only significantly enriched in SH19B. Then, the expression differences of oxidative phosphorylation pathways, antioxidant enzymes, and senescence-related genes in response to heat stress were analyzed in the three inbred lines. In addition, we demonstrated that silencing ZmbHLH51 by virus-induced gene silencing (VIGS) inhibits the heat-stress-induced senescence of maize leaves. This study helps to further elucidate the molecular mechanisms of heat-stress-induced leaf senescence at the seedling stage of maize.
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Affiliation(s)
- Xiaokang Han
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Dingyu Zhang
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Haibo Hao
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yong Luo
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Ziwei Zhu
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Benke Kuai
- State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture, Institute of Plant Biology, School of Life Sciences, Fudan University, Shanghai 200438, China
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20
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Kim SJ, Tran BQ, Jung S. Methyl jasmonate-induced senescence results in alterations in the status of chlorophyll precursors and enzymatic antioxidants in rice plants. Biochem Biophys Res Commun 2023; 671:38-45. [PMID: 37295354 DOI: 10.1016/j.bbrc.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023]
Abstract
We examined the control of chlorophyll biosynthesis and protective mechanisms during leaf senescence induced by methyl jasmonate (MeJA). After MeJA treatment, rice plants displayed evidence of great oxidative stress regarding senescence symptoms, disruption of membrane integrity, H2O2 production, and decreased chlorophyll content and photosynthetic efficiency. After 6 h of MeJA treatment, plants greatly decreased not only their levels of chlorophyll precursors, including protoporphyrin IX (Proto IX), Mg-Proto IX, Mg-Proto IX methylester, and protochlorophyllide, but also the expression levels of the chlorophyll biosynthetic genes CHLD, CHLH, CHLI, and PORB, with the greatest decreases at 78 h. MeJA-treated plants showed a noticeable degradation of light-harvesting chlorophyll-binding proteins (LHCB) at 78 h after MeJA treatment but began to downregulate expression of LHCB at 6 h. Photoprotection, as indicated by nonphotochemical quenching, slightly increased only at 6 h after MeJA treatment. In parallel to the increased activities of superoxide dismutase, catalase (CAT), ascorbate peroxidase (APX), and peroxidase, MeJA-treated plants responded to senescence by markedly upregulating the expression of APX and CAT. Our study demonstrates that rice plants developed protective mechanisms for mitigating oxidative stress by scavenging phototoxic chlorophyll precursors and activating enzymatic antioxidant responses during MeJA-induced senescence.
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Affiliation(s)
- So-Jin Kim
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, South Korea
| | - Bao Quoc Tran
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, South Korea
| | - Sunyo Jung
- School of Life Sciences, BK21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, 41566, South Korea.
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21
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Jiang L, Liu K, Zhang T, Chen J, Zhao S, Cui Y, Zhou W, Yu Y, Chen S, Wang C, Zhang C. The RhWRKY33a-RhPLATZ9 regulatory module delays petal senescence by suppressing rapid reactive oxygen species accumulation in rose flowers. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 114:1425-1442. [PMID: 36951178 DOI: 10.1111/tpj.16202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/12/2023] [Accepted: 03/10/2023] [Indexed: 06/17/2023]
Abstract
Redox homeostasis in plant cells is critical for maintaining normal growth and development because reactive oxygen species (ROS) can function as signaling molecules or toxic compounds. However, how plants fine-tune redox homeostasis during natural or stress-induced senescence remains unclear. Cut roses (Rosa hybrida), an economically important ornamental product worldwide, often undergo stress-induced precocious senescence at the post-harvest bud stage. Here, we identified RhPLATZ9, an age- and dehydration-induced PLATZ (plant AT-rich sequence and zinc-binding) protein, and determined that it functions as a transcriptional repressor in rose flowers during senescence. We also showed that RhWRKY33a regulates RhPLATZ9 expression during flower senescence. RhPLATZ9-silenced flowers and RhWRKY33a-silenced flowers showed accelerated senescence, with higher ROS contents than the control. By contrast, overexpression of RhWRKY33a or RhPLATZ9 delayed flower senescence, and overexpression in rose calli showed lower ROS accumulation than the control. RNA-sequencing analysis revealed that apoplastic NADPH oxidase genes (RhRbohs) were enriched among the upregulated differentially expressed genes in RhPLATZ9-silenced flowers compared to wild-type flowers. Yeast one-hybrid assays, electrophoretic mobility shift assays, dual luciferase assays and chromatin immunoprecipitation quantitative PCR confirmed that the RhRbohD gene is a direct target of RhPLATZ9. These findings suggest that the RhWRKY33a-RhPLATZ9-RhRbohD regulatory module acts as a brake to help maintain ROS homeostasis in petals and thus antagonize age- and stress-induced precocious senescence in rose flowers.
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Affiliation(s)
- Liwei Jiang
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Kun Liu
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tao Zhang
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jin Chen
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Siqi Zhao
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yusen Cui
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Wentong Zhou
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yi Yu
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Siyu Chen
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Caiyuan Wang
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Changqing Zhang
- Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
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22
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Fu Y, Fan B, Li X, Bao H, Zhu C, Chen Z. Autophagy and multivesicular body pathways cooperate to protect sulfur assimilation and chloroplast functions. PLANT PHYSIOLOGY 2023; 192:886-909. [PMID: 36852939 PMCID: PMC10231471 DOI: 10.1093/plphys/kiad133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/23/2023] [Accepted: 02/02/2023] [Indexed: 06/01/2023]
Abstract
Autophagy and multivesicular bodies (MVBs) represent 2 closely related lysosomal/vacuolar degradation pathways. In Arabidopsis (Arabidopsis thaliana), autophagy is stress-induced, with deficiency in autophagy causing strong defects in stress responses but limited effects on growth. LYST-INTERACTING PROTEIN 5 (LIP5) is a key regulator of stress-induced MVB biogenesis, and mutation of LIP5 also strongly compromises stress responses with little effect on growth in Arabidopsis. To determine the functional interactions of these 2 pathways in Arabidopsis, we generated mutations in both the LIP5 and AUTOPHAGY-RELATED PROTEIN (ATG) genes. atg5/lip5 and atg7/lip5 double mutants displayed strong synergistic phenotypes in fitness characterized by stunted growth, early senescence, reduced survival, and greatly diminished seed production under normal growth conditions. Transcriptome and metabolite analysis revealed that chloroplast sulfate assimilation was specifically downregulated at early seedling stages in the atg7/lip5 double mutant prior to the onset of visible phenotypes. Overexpression of adenosine 5'-phosphosulfate reductase 1, a key enzyme in sulfate assimilation, substantially improved the growth and fitness of the atg7/lip5 double mutant. Comparative multi-omic analysis further revealed that the atg7/lip5 double mutant was strongly compromised in other chloroplast functions including photosynthesis and primary carbon metabolism. Premature senescence and reduced survival of atg/lip5 double mutants were associated with increased accumulation of reactive oxygen species and overactivation of stress-associated programs. Blocking PHYTOALEXIN DEFICIENT 4 and salicylic acid signaling prevented early senescence and death of the atg7/lip5 double mutant. Thus, stress-responsive autophagy and MVB pathways play an important cooperative role in protecting essential chloroplast functions including sulfur assimilation under normal growth conditions to suppress salicylic-acid-dependent premature cell-death and promote plant growth and fitness.
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Affiliation(s)
- Yunting Fu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Baofang Fan
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907-2054, USA
| | - Xifeng Li
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Hexigeduleng Bao
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907-2054, USA
| | - Cheng Zhu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
| | - Zhixiang Chen
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907-2054, USA
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23
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He S, Zhi F, Min Y, Ma R, Ge A, Wang S, Wang J, Liu Z, Guo Y, Chen M. The MYB59 transcription factor negatively regulates salicylic acid- and jasmonic acid-mediated leaf senescence. PLANT PHYSIOLOGY 2023; 192:488-503. [PMID: 36542529 PMCID: PMC10152657 DOI: 10.1093/plphys/kiac589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 10/27/2022] [Accepted: 11/30/2022] [Indexed: 05/03/2023]
Abstract
Leaf senescence is the final stage of leaf development and is affected by various exogenous and endogenous factors. Transcriptional regulation is essential for leaf senescence, however, the underlying molecular mechanisms remain largely unclear. In this study, we report that the transcription factor MYB59, which was predominantly expressed in early senescent rosette leaves, negatively regulates leaf senescence in Arabidopsis (Arabidopsis thaliana). RNA sequencing revealed a large number of differentially expressed genes involved in several senescence-related biological processes in myb59-1 rosette leaves. Chromatin immunoprecipitation and transient dual-luciferase reporter assays demonstrated that MYB59 directly repressed the expression of SENESCENCE ASSOCIATED GENE 18 and indirectly inhibited the expression of several other senescence-associated genes to delay leaf senescence. Moreover, MYB59 was induced by salicylic acid (SA) and jasmonic acid (JA). MYB59 inhibited SA production by directly repressing the expression of ISOCHORISMATE SYNTHASE 1 and PHENYLALANINE AMMONIA-LYASE 2 and restrained JA biosynthesis by directly suppressing the expression of LIPOXYGENASE 2, thus forming two negative feedback regulatory loops with SA and JA and ultimately delaying leaf senescence. These results help us understand the novel function of MYB59 and provide insights into the regulatory network controlling leaf senescence in Arabidopsis.
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Affiliation(s)
- Shuangcheng He
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fang Zhi
- State Key Laboratory of Crop Stress Biology for Arid Areas, Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yuanchang Min
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Rong Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Ankang Ge
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Shixiang Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jianjun Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zijin Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yuan Guo
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Mingxun Chen
- State Key Laboratory of Crop Stress Biology for Arid Areas, National Yangling Agricultural Biotechnology & Breeding Center, Shaanxi Key Laboratory of Crop Heterosis, and College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China
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24
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Kabarkouhi Z, Arjmand S, Ranaei Siadat SO, Shokri B. Cold atmospheric plasma treatment enhances recombinant model protein production in yeast Pichia pastoris. Sci Rep 2023; 13:6797. [PMID: 37100818 PMCID: PMC10133276 DOI: 10.1038/s41598-023-34078-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/24/2023] [Indexed: 04/28/2023] Open
Abstract
Cold atmospheric pressure plasma (CAP) has been described as a novel technology with expanding applications in biomedicine and biotechnology. In the present study, we provide a mildly stressful condition using non-lethal doses of CAP (120, 180, and 240 s) and evaluate its potential benefits on the recombinant production of a model protein (enhanced green fluorescent protein (eGFP)) in yeast Pichia pastoris. The measured eGFP fluorescence augmented proportional to CAP exposure time. After 240 s treatment with CAP, the measured fluorescent intensity of culture supernatant (after 72 h) and results of real-time PCR (after 24 h) indicated an 84% and 76% increase in activity and related RNA concentration, respectively. Real-time analysis of a list of genes involved in oxidative stress response revealed a significant and durable improvement in their expression at five h and 24 h following CAP exposure. The improvement of the recombinant model protein production may be partly explained by the impact of the RONS on cellular constituents and altering the expression of specific stress genes. In conclusion, using CAP strategy may be considered a valuable strategy to improve recombinant protein production, and deciphering the molecular background mechanism could be inspiring in the reverse metabolic engineering of host cells.
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Affiliation(s)
- Zeinab Kabarkouhi
- Laser and Plasma Research Institute, Shahid Beheshti University, P.O. Box: 1983969411, Tehran, Iran
| | - Sareh Arjmand
- Protein Research Center, Shahid Beheshti University, P.O. Box: 1983969411, Tehran, Iran
| | | | - Babak Shokri
- Laser and Plasma Research Institute, Shahid Beheshti University, P.O. Box: 1983969411, Tehran, Iran.
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25
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Yang K, Sun H, Liu M, Zhu L, Zhang K, Zhang Y, Li A, Zhang H, Zhu J, Liu X, Bai Z, Liu L, Li C. Morphological and Physiological Mechanisms of Melatonin on Delaying Drought-Induced Leaf Senescence in Cotton. Int J Mol Sci 2023; 24:ijms24087269. [PMID: 37108431 PMCID: PMC10138977 DOI: 10.3390/ijms24087269] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Leaf senescence reduces the photosynthetic capacity of leaves, thus significantly affecting the growth, development, and yield formation of cotton. Melatonin (MT) is a multipotent substance proven to delay leaf senescence. However, its potential mechanism in delaying leaf senescence induced by abiotic stress remains unclear. This study aimed to explore the effect of MT on delaying drought-induced leaf senescence in cotton seedlings and to clarify its morphological and physiological mechanisms. Drought stress upregulated the leaf senescence marker genes, destroyed the photosystem, and led to excessive accumulation of reactive oxygen species (ROS, e.g., H2O2 and O2-), thus accelerating leaf senescence. However, leaf senescence was significantly delayed when 100 μM MT was sprayed on the leaves of the cotton seedlings. The delay was embodied by the increased chlorophyll content, photosynthetic capacity, and antioxidant enzyme activities, as well as decreased H2O2, O2-, and abscisic acid (ABA) contents by 34.44%, 37.68%, and 29.32%, respectively. MT significantly down-regulated chlorophyll degradation-related genes and senescence marker genes (GhNAC12 and GhWRKY27/71). In addition, MT reduced the chloroplast damage caused by drought-induced leaf senescence and maintained the integrity of the chloroplast lamellae structure under drought stress. The findings of this study collectively suggest that MT can effectively enhance the antioxidant enzyme system, improve photosynthetic efficiency, reduce chlorophyll degradation and ROS accumulation, and inhibit ABA synthesis, thereby delaying drought-induced leaf senescence in cotton.
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Affiliation(s)
- Kai Yang
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Hongchun Sun
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Mengxing Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Lingxiao Zhu
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Ke Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Yongjiang Zhang
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Anchang Li
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Haina Zhang
- Cotton Research Institute, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
| | - Jijie Zhu
- Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
| | - Xiaoqing Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Zhiying Bai
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Liantao Liu
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
| | - Cundong Li
- State Key Laboratory of North China Crop Improvement and Regulation, Key Laboratory of Crop Growth Regulation of Hebei Province, College of Agronomy, Hebei Agricultural University, Baoding 071001, China
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26
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Oxidative Status of Medicago truncatula Seedlings after Inoculation with Rhizobacteria of the Genus Pseudomonas, Paenibacillus and Sinorhizobium. Int J Mol Sci 2023; 24:ijms24054781. [PMID: 36902209 PMCID: PMC10003724 DOI: 10.3390/ijms24054781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/21/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
An increasing number of scientists working to raise agricultural productivity see the potential in the roots and the soil adjacent to them, together with a wealth of micro-organisms. The first mechanisms activated in the plant during any abiotic or biotic stress concern changes in the oxidative status of the plant. With this in mind, for the first time, an attempt was made to check whether the inoculation of seedlings of the model plant Medicago truncatula with rhizobacteria belonging to the genus Pseudomonas (P. brassicacearum KK5, P. corrugata KK7), Paenibacillus borealis KK4 and a symbiotic strain Sinorhizobium meliloti KK13 would change the oxidative status in the days following inoculation. Initially, an increase in H2O2 synthesis was observed, which led to an increase in the activity of antioxidant enzymes responsible for regulating hydrogen peroxide levels. The main enzyme involved in the reduction of H2O2 content in the roots was catalase. The observed changes indicate the possibility of using the applied rhizobacteria to induce processes related to plant resistance and thus to ensure protection against environmental stress factors. In the next stages, it seems reasonable to check whether the initial changes in the oxidative state affect the activation of other pathways related to plant immunity.
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27
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Sun J, Du L, Qu Z, Wang H, Dong S, Li X, Zhao H. Integrated metabolomics and proteomics analysis to study the changes in Scutellaria baicalensis at different growth stages. Food Chem 2023; 419:136043. [PMID: 37027979 DOI: 10.1016/j.foodchem.2023.136043] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 02/28/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023]
Abstract
Scutellaria baicalensis is a functional food that has the potential to treat various diseases. Scutellaria baicalensis can be divided into two types: Ziqin (strip types) and (rotten xylem). Ziqin is used to clear lower energizer large intestine heat syndrome, while Kuqin is used for the treatment of upper energizer lung heat syndrome. At present, the substance basis of the differences between Ziqin and Kuqin is not clear. The changes in metabolite accumulation and protein expression between them were analyzed by the non-targeted metabolomic technique in combination with the label-free proteomics approach. The results showed that the differentially accumulated metabolites and abundant proteins were mainly enriched in the pathways of phenylalanine, tyrosine and tryptophan biosynthesis, phenylpropanoid biosynthesis, flavonoid biosynthesis, flavone and flavonol biosynthesis, isoflavonoid biosynthesis, and anthocyanin biosynthesis. Collectively, these results reveal the changes of Scutellaria baicalensis in different growth years and provide a reference for selecting the appropriate harvest period.
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28
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Understanding the Seasonal Effect of Metabolite Production in Terminalia catappa L. Leaves through a Concatenated MS- and NMR-Based Metabolomics Approach. Metabolites 2023; 13:metabo13030349. [PMID: 36984789 PMCID: PMC10053923 DOI: 10.3390/metabo13030349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
Terminalia catappa L. (Combretaceae) is a medicinal plant that is part of the Brazilian biodiversity; this plant is popularly used for the treatment of a wide range of diseases. To better understand the chemical composition of T. catappa in different seasons, we conducted a thorough study using LC-MS and NMR data analysis techniques. The study helped obtain a chemical profile of the plant ethanolic extracts in different seasons of the year (spring, summer, autumn, and winter). The dereplication of LC-HRMS data allowed the annotation of 90 compounds in the extracts of T. catappa (hydrolyzable tannins, ellagic acid derivatives, and glycosylated flavonoids). Triterpenes and C-glycosyl flavones were the compounds that significantly contributed to differences observed between T. catappa plant samples harvested in autumn/winter and spring, respectively. The variations observed in the compound composition of the plant leaves may be related to processes induced by environmental stress and leaf development. Data fusion applied in the metabolomic profiling study allowed us to identify metabolites with greater confidence, and provided a better understanding regarding the production of specialized metabolites in T. catappa leaves under different environmental conditions, which may be useful to establish appropriate quality criteria for the standardization of this medicinal plant.
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29
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Li L, Delgado‐Viscogliosi P, Gerphagnon M, Viscogliosi E, Christaki U, Sime‐Ngando T, Monchy S. Taxonomic and functional dynamics during chytrid epidemics in an aquatic ecosystem. Mol Ecol 2022; 31:5618-5634. [PMID: 36028992 PMCID: PMC9826485 DOI: 10.1111/mec.16675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 01/11/2023]
Abstract
Fungal parasitism is common in plankton communities and plays a crucial role in the ecosystem by balancing nutrient cycling in the food web. Previous studies of aquatic ecosystems revealed that zoosporic chytrid epidemics represent an important driving factor in phytoplankton seasonal successions. In this study, host-parasite dynamics in Lake Pavin (France) were investigated during the spring diatom bloom while following chytrid epidemics using next generation sequencing (NGS). Metabarcoding analyses were applied to study changes in the eukaryotic microbial community throughout diatom bloom-chytrid epidemics. Relative read abundances of metabarcoding data revealed potential "beneficiaries" and "victims" during the studied period. Subsequently, metatranscriptomic analyses on samples before and during the chytrid epidemic unveiled the active part of the community and functional/metabolic dynamics in association with the progress of chytrid infection. Diatom functions involving lipases, transporters, histones, vacuolar systems, the proteasome, proteases and DNA/RNA polymerases were more abundant during the diatom bloom. Chytrid functions related to a parasitic lifestyle including invasion, colonization and stress tolerance were up-regulated during the chytrid epidemic. In addition, functions related to the degradation/metabolism of proteins, lipids and chitin were in higher proportion in the community during the epidemic event. Results of NGS and bioinformatics analyses offered a panorama of dynamic biodiversity and biological functioning of the community.
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Affiliation(s)
- Luen‐Luen Li
- Université du Littoral Côte d'Opale, CNRS, Univ. Lille, UMR 8187, LOGLaboratoire d'Océanologie et de GéosciencesWimereuxFrance
| | - Pilar Delgado‐Viscogliosi
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de LilleU1019 – UMR 9017 – CIIL – Centre d'’Infection et d'’Immunité de LilleLilleFrance
| | - Mélanie Gerphagnon
- Laboratoire Microorganismes: Génome et Environnement, UMR CNRS 6023Clermont Université, Blaise PascalAubièreFrance
| | - Eric Viscogliosi
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de LilleU1019 – UMR 9017 – CIIL – Centre d'’Infection et d'’Immunité de LilleLilleFrance
| | - Urania Christaki
- Université du Littoral Côte d'Opale, CNRS, Univ. Lille, UMR 8187, LOGLaboratoire d'Océanologie et de GéosciencesWimereuxFrance
| | - Télesphore Sime‐Ngando
- Laboratoire Microorganismes: Génome et Environnement, UMR CNRS 6023Clermont Université, Blaise PascalAubièreFrance
| | - Sébastien Monchy
- Université du Littoral Côte d'Opale, CNRS, Univ. Lille, UMR 8187, LOGLaboratoire d'Océanologie et de GéosciencesWimereuxFrance
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Abideen Z, Cardinale M, Zulfiqar F, Koyro HW, Rasool SG, Hessini K, Darbali W, Zhao F, Siddique KH. Seed Endophyte bacteria enhance drought stress tolerance in Hordeum vulgare by regulating, physiological characteristics, antioxidants and minerals uptake. FRONTIERS IN PLANT SCIENCE 2022; 13:980046. [PMID: 36275600 PMCID: PMC9581713 DOI: 10.3389/fpls.2022.980046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/05/2022] [Indexed: 06/03/2023]
Abstract
Growth stimulating bacteria help remediate dry arid soil and plant stress. Here, Pseudomonas sp. and Pantoea sp. we used to study the stress ecology of Hordeum vulgare and the environmental impact of water deficit on soil characteristics, growth, photosynthesis apparatus, mineral acquisition and antioxidiant defense. Plants inoculated with Pseudomonas or Pantoea had significantly higher (about 2 folds) soil carbon flux (soil respiration), chlorophyll levels (18%), net photosynthetic rate (33% in Pantoea and 54% in Pseudomonas), (44%) stomatal conductance than uninoculated plants in stressed conditions. Both bacterial strains improved leaf growth (23-29%) and root development under well-watered conditions but reduced around (25%) root biomass under drought. Plants inoculated with Pseudomonas or Pantoea under drought also increased of about 27% leaf respiration and transpiration (48%) but decreased water use efficiency, photoinhibition (91%), and the risk of oxidative stress (ETR/A) (49%). Drought stress increased most of the studied antioxidant enzymatic activities in the plants inoculated with Pseudomonas or Pantoea, which reduce the membrane damage and protect plants form oxidative defenses. Drought stress increased K+ acquisition around 50% in both shoots inoculated with Pseudomonas or Pantoea relative to non-stressed plants. Plants inoculated with Pseudomonas or Pantoea increased shoot Na+ while root Na+ only increased in plants inoculated with Pseudomonas in stressed conditions. Drought stress increased shoot Mg2+ in plants inoculated with Pseudomonas or Pantoea but did not affect Ca2+ relative to non-stressed plants. Drought stress increased about 70% K+/Na+ ratio only in plants inoculated with Pseudomonas relative to non-stressed plants. Our results indicate that inoculating barley with the studied bacterial strains increases plant biomass and can therefore play a role in the environmental remediation of drylands for food production.
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Affiliation(s)
- Zainul Abideen
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, Pakistan
- Institute of Plant Ecology, Research Centre for Bio Systems, Land Use, and Nutrition (IFZ), Justus-Liebig-University Giessen, Giessen, Germany
| | - Massimiliano Cardinale
- Institute of Applied Microbiology, Research Centre for Bio Systems, Land Use, and Nutrition (IFZ), Justus-Liebig-University Giessen, Giessen, Germany
- Department of Biological and Environmental Sciences and Technologies (DiSTeBa), University of Salento, Lecce, Italy
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Hans-Werner Koyro
- Institute of Plant Ecology, Research Centre for Bio Systems, Land Use, and Nutrition (IFZ), Justus-Liebig-University Giessen, Giessen, Germany
| | - Sarwat Ghulam Rasool
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, Pakistan
| | - Kamel Hessini
- Department of Biology, College of Sciences, Taif University, Taif, Saudi Arabia
| | - Walid Darbali
- Institute of Plant Ecology, Research Centre for Bio Systems, Land Use, and Nutrition (IFZ), Justus-Liebig-University Giessen, Giessen, Germany
| | - Fengliang Zhao
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Science (CATAS), Haikou, China
| | - Kadambot H.M. Siddique
- The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, Australia
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Determination of Reactive Oxygen or Nitrogen Species and Novel Volatile Organic Compounds in the Defense Responses of Tomato Plants against Botrytis cinerea Induced by Trichoderma virens TRS 106. Cells 2022; 11:cells11193051. [PMID: 36231012 PMCID: PMC9563596 DOI: 10.3390/cells11193051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/23/2022] [Accepted: 09/25/2022] [Indexed: 11/17/2022] Open
Abstract
In the present study, Trichoderma virens TRS 106 decreased grey mould disease caused by Botrytis cinerea in tomato plants (S. lycopersicum L.) by enhancing their defense responses. Generally, plants belonging to the ‘Remiz’ variety, which were infected more effectively by B. cinerea than ‘Perkoz’ plants, generated more reactive molecules such as superoxide (O2−) and peroxynitrite (ONOO−), and less hydrogen peroxide (H2O2), S-nitrosothiols (SNO), and green leaf volatiles (GLV). Among the new findings, histochemical analyses revealed that B. cinerea infection caused nitric oxide (NO) accumulation in chloroplasts, which was not detected in plants treated with TRS 106, while treatment of plants with TRS 106 caused systemic spreading of H2O2 and NO accumulation in apoplast and nuclei. SPME-GCxGC TOF-MS analysis revealed 24 volatile organic compounds (VOC) released by tomato plants treated with TRS 106. Some of the hexanol derivatives, e.g., 4-ethyl-2-hexynal and 1,5-hexadien-3-ol, and salicylic acid derivatives, e.g., 4-hepten-2-yl and isoamyl salicylates, are considered in the protection of tomato plants against B. cinerea for the first time. The results are valuable for further studies aiming to further determine the location and function of NO in plants treated with Trichoderma and check the contribution of detected VOC in plant protection against B. cinerea.
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Impact of Biochar Application at Water Shortage on Biochemical and Physiological Processes in Medicago ciliaris. PLANTS 2022; 11:plants11182411. [PMID: 36145812 PMCID: PMC9506477 DOI: 10.3390/plants11182411] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022]
Abstract
The application of biochar is mostly used to improve soil fertility, water retention capacity and nutrient uptake. The present study was conducted in order to study the impact of biochar at water deficiency conditions on the physiological and biochemical processes of Medicago ciliaris seedlings. Seedlings were cultivated under greenhouse conditions in pots filled with a mixture of soil and sand mixed in the presence or absence of 2% biochar. Plants of uniform size were subjected after a pretreatment phase (72 days) either to low (36% water holding capacity, water potential low) or high soil water potential (60% water holding capacity, water potential high). Pots were weighed every day to control and maintain a stable water holding capacity. In Medicago ciliaris, drought led to a significant reduction in plant growth and an increase in the root/shoot ratio. The growth response was accompanied by a decreased stomatal conductance and a reduction of the net CO2 assimilation rate and water use efficiency. The associated higher risk of ROS production was indicated by a high level of lipid peroxidation, high antioxidant activities and high proline accumulation. Soil amendment with biochar enhanced the growth significantly and supported the photosynthetic apparatus of Medicago ciliaris species by boosting chlorophyll content and Anet both under well and insufficient watered plants and water use efficiency in case of water shortage. This increase of water use efficiency was correlated with the biochar-mediated decrease of the MDA and proline contents in the leaves buffering the impact of drought on photosynthetic apparatus by increasing the activity of enzymatic antioxidants SOD, APX, GPOX and GR and non-enzymatic antioxidants, such as AsA and DHAsA, giving the overall picture of a moderate stress response. These results confirmed the hypothesis that biochar application significantly reduces both the degree of stress and the negative impact of oxidative stress on Medicago ciliaris plants. These results implied that this species could be suitable as a cash pasture plant in the development of agriculture on dry wasteland in a future world of water shortages.
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Sasi JM, Gupta S, Singh A, Kujur A, Agarwal M, Katiyar-Agarwal S. Know when and how to die: gaining insights into the molecular regulation of leaf senescence. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:1515-1534. [PMID: 36389097 PMCID: PMC9530073 DOI: 10.1007/s12298-022-01224-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/17/2022] [Accepted: 08/21/2022] [Indexed: 06/16/2023]
Abstract
Senescence is the ultimate phase in the life cycle of leaves which is crucial for recycling of nutrients to maintain plant fitness and reproductive success. The earliest visible manifestation of leaf senescence is their yellowing, which usually commences with the breakdown of chlorophyll. The degradation process involves a gradual and highly coordinated disassembly of macromolecules resulting in the accumulation of nutrients, which are subsequently mobilized from the senescing leaves to the developing organs. Leaf senescence progresses under overly tight genetic and molecular control involving a well-orchestrated and intricate network of regulators that coordinate spatio-temporally with the influence of both internal and external cues. Owing to the advancements in omics technologies, the availability of mutant resources, scalability of molecular analyses methodologies and the advanced capacity to integrate multidimensional data, our understanding of the genetic and molecular basis of leaf ageing has greatly expanded. The review provides a compilation of the multitier regulation of senescence process and the interrelation between the environment and the terminal phase of leaf development. The knowledge gained would benefit in devising the strategies for manipulation of leaf senescence process to improve crop quality and productivity.
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Affiliation(s)
- Jyothish Madambikattil Sasi
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
| | - Shitij Gupta
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
| | - Apurva Singh
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
| | - Alice Kujur
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
- USDA-ARS Plant Genetics Research Unit, The Donald Danforth Plant Science Center, St. Louis, MO 63132 USA
- Centre of Excellence in Genomics and Systems Biology (CEGSB), International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Hyderabad, Telangana 502324 India
| | - Manu Agarwal
- Department of Botany, University of Delhi North Campus, Delhi, 110007 India
| | - Surekha Katiyar-Agarwal
- Department of Plant Molecular Biology, University of Delhi South Campus, Benito Juarez Road, New Delhi, 110021 India
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Changes in the Differentiation Program of Birch Cambial Derivatives following Trunk Girdling. FORESTS 2022. [DOI: 10.3390/f13081171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The mechanisms regulating the tree trunk radial growth can be studied in original experiments. One technique for studying cambium activity (the meristem involved in radial growth) under conditions of an increased photoassimilate level is trunk girdling. We girdled the trunks of 17- to 22-year-old silver birch plants (Betula pendula Roth var. pendula) during the active growth period and collected xylem and phloem samples at two height levels (1 cm and 35 cm) above girdle, 10, 20, and 30 days after girdling. We investigated the changes that occurred at the anatomical level, as well as the activities of sucrose-metabolizing enzymes and antioxidant-system enzymes and the expression of genes that encode proteins involved in sucrose and auxin transport and metabolism. A moderate increase in photoassimilates (35 cm above the girdle) resulted in a change in the ratio of phloem to xylem increments and an increase in the proportion of parenchyma in the conducting tissues. The increase of photoassimilates above the level at which they can be used in the processes of normal tissue growth and development (1 cm above the girdle) led to xylogenesis suppression and the stimulation of phloem formation, a significant increase in the parenchyma proportion in the conducting tissues, and formation of large sclereid complexes. The differentiation of parenchyma and sclereid cells coincided with biochemical and molecular markers of abnormal conducting tissue formation in Karelian birch, which are also characterized by high proportions of parenchyma and sclereid near the cambium. The results obtained are important in understanding the cambium responses to the photoassimilate distribution changes and estimating tree productivity and survival under changing environmental conditions.
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Zhao Y, Vlasselaer L, Ribeiro B, Terzoudis K, Van den Ende W, Hertog M, Nicolaï B, De Coninck B. Constitutive Defense Mechanisms Have a Major Role in the Resistance of Woodland Strawberry Leaves Against Botrytis cinerea. FRONTIERS IN PLANT SCIENCE 2022; 13:912667. [PMID: 35874021 PMCID: PMC9298464 DOI: 10.3389/fpls.2022.912667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The necrotrophic fungus Botrytis cinerea is a major threat to strawberry cultivation worldwide. By screening different Fragaria vesca genotypes for susceptibility to B. cinerea, we identified two genotypes with different resistance levels, a susceptible genotype F. vesca ssp. vesca Tenno 3 (T3) and a moderately resistant genotype F. vesca ssp. vesca Kreuzkogel 1 (K1). These two genotypes were used to identify the molecular basis for the increased resistance of K1 compared to T3. Fungal DNA quantification and microscopic observation of fungal growth in woodland strawberry leaves confirmed that the growth of B. cinerea was restricted during early stages of infection in K1 compared to T3. Gene expression analysis in both genotypes upon B. cinerea inoculation suggested that the restricted growth of B. cinerea was rather due to the constitutive resistance mechanisms of K1 instead of the induction of defense responses. Furthermore, we observed that the amount of total phenolics, total flavonoids, glucose, galactose, citric acid and ascorbic acid correlated positively with higher resistance, while H2O2 and sucrose correlated negatively. Therefore, we propose that K1 leaves are more resistant against B. cinerea compared to T3 leaves, prior to B. cinerea inoculation, due to a lower amount of innate H2O2, which is attributed to a higher level of antioxidants and antioxidant enzymes in K1. To conclude, this study provides important insights into the resistance mechanisms against B. cinerea, which highly depend on the innate antioxidative profile and specialized metabolites of woodland strawberry leaves.
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Affiliation(s)
- Yijie Zhao
- Division of Crop Biotechnics, Department of Biosystems, KU Leuven, Leuven, Belgium
- Division of Mechatronics, Biostatistics and Sensors, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
| | - Liese Vlasselaer
- Division of Crop Biotechnics, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
| | - Bianca Ribeiro
- Division of Crop Biotechnics, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
| | - Konstantinos Terzoudis
- Division of Mechatronics, Biostatistics and Sensors, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
| | - Wim Van den Ende
- KU Leuven Plant Institute, Heverlee, Belgium
- Laboratory of Molecular Plant Biology, Department of Biology, KU Leuven, Leuven, Belgium
| | - Maarten Hertog
- Division of Mechatronics, Biostatistics and Sensors, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
| | - Bart Nicolaï
- Division of Mechatronics, Biostatistics and Sensors, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
- Flanders Centre of Postharvest Technology, Leuven, Belgium
| | - Barbara De Coninck
- Division of Crop Biotechnics, Department of Biosystems, KU Leuven, Leuven, Belgium
- KU Leuven Plant Institute, Heverlee, Belgium
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Pan T, Wang L, Peng Z, Tian J, Cai K. Silicon enhances the submergence tolerance of rice by regulating quiescence strategy and alleviating oxidative damage. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 182:124-132. [PMID: 35490638 DOI: 10.1016/j.plaphy.2022.04.018] [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: 01/12/2022] [Revised: 03/24/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
The safety of rice production under submergence is one of the research hotspots worldwide. Although the effects of silicon (Si) on enhancing plant stress tolerance have been widely investigated, the underlying mechanisms mediated by Si under submergence remains poorly understood. In this study, wild type (WT) and Si-defective mutant (lsi1) rice were chosen to investigate the mechanisms of Si-mediated rice resistance to submergence. Our results showed that Si addition effectively mitigated oxidative damages under submergence by reducing the content of hydrogen peroxide (H2O2) and superoxide (O2.-) in WT rice plants. Moreover, Si treatment increased rice yield by 21.5% for WT rice under submergence. The application of Si significantly inhibited the elongation and internode length in WT rice under submergence, through the synergistic regulation of endogenous hormones ethylene (ET), gibberellic acid (GA) and jasmonic acid (JA). Further investigation showed that the ethylene-responsive factor (ERF) SUB1A gene was expressed under submergence in WT and lsi1 rice, but Si addition did not influence the expression of SUB1A. Interestingly, exogenous Si down-regulated the relative expression levels of Si transporter genes Lsi1 and Lsi2 in WT rice roots by 51.7% and 48.0%, respectively. However, the physiological characteristics and genes expression of lsi1 rice were not affected by Si application regardless of submergence. The present study indicated that Si enhances the submergence tolerance and reduce the adverse effects of yield loss through the removal of reactive oxygen species and the adjustment of quiescence strategy.
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Affiliation(s)
- Taowen Pan
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, 510642, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, PR China; Key Laboratory of Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Lei Wang
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, 510642, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, PR China; Key Laboratory of Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Zhenni Peng
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, 510642, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, PR China; Key Laboratory of Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Jihui Tian
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, 510642, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, PR China; Key Laboratory of Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, PR China
| | - Kunzheng Cai
- Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, 510642, PR China; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, PR China; Key Laboratory of Tropical Agro-Environment, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, PR China.
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Andriūnaitė E, Rugienius R, Tamošiūnė I, Haimi P, Vinskienė J, Baniulis D. Enhanced Carbonylation of Photosynthetic and Glycolytic Proteins in Antibiotic Timentin-Treated Tobacco In Vitro Shoot Culture. PLANTS 2022; 11:plants11121572. [PMID: 35736723 PMCID: PMC9228549 DOI: 10.3390/plants11121572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/09/2022] [Accepted: 06/12/2022] [Indexed: 11/26/2022]
Abstract
Antibiotics are used in plant in vitro tissue culture to eliminate microbial contamination or for selection in genetic transformation. Antibiotic timentin has a relatively low cytotoxic effect on plant tissue culture; however, it could induce an enduring growth-inhibiting effect in tobacco in vitro shoot culture that persists after tissue transfer to a medium without antibiotic. The effect is associated with an increase in oxidative stress injury in plant tissues. In this study, we assessed changes of reactive oxygen species accumulation, protein expression, and oxidative protein modification response associated with enduring timentin treatment-induced growth suppression in tobacco (Nicotiana tabacum L.) in vitro shoot culture. The study revealed a gradual 1.7 and 1.9-fold increase in superoxide (O2•−) content at the later phase of the propagation cycle for treatment control (TC) and post-antibiotic treatment (PA) shoots; however, the O2•− accumulation pattern was different. For PA shoots, the increase in O2•− concentration occurred several days earlier, resulting in 1.2 to 1.4-fold higher O2•− concentration compared to TC during the period following the first week of cultivation. Although no protein expression differences were detectable between the TC and PA shoots by two-dimensional electrophoresis, the increase in O2•− concentration in PA shoots was associated with a 1.5-fold increase in protein carbonyl modification content after one week of cultivation, and protein carbonylation analysis revealed differential modification of 26 proteoforms involved in the biological processes of photosynthesis and glycolysis. The results imply that the timentin treatment-induced oxidative stress might be implicated in nontranslational cellular redox balance regulation, accelerates the development of senescence of the shoot culture, and contributes to the shoot growth-suppressing effect of antibiotic treatment.
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38
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Singh SK, Sun Y, Yang Y, Zuo Z, Wu X, Shao C, Peng L, Paré PW, Zhang H. Bacterial diacetyl suppresses abiotic stress-induced senescence in Arabidopsis. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2022; 64:1135-1139. [PMID: 35377511 DOI: 10.1111/jipb.13260] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Premature plant senescence induced by abiotic stresses is a major cause of agricultural losses worldwide. Tools for suppressing stress-induced plant senescence are limited. Here, we report that diacetyl, a natural compound emitted by the plant-beneficial bacterium Bacillus amyloliquefaciens, suppresses abscisic acid -mediated foliar senescence in Arabidopsis thaliana under various abiotic stress conditions. Our results establish diacetyl as an effective protector against stress-induced plant senescence and reveal a molecular mechanism for bacteria-enhanced plant stress resistance.
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Affiliation(s)
- Sunil K Singh
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
| | - Yazhou Sun
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yu Yang
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
| | - Ziwei Zuo
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoxuan Wu
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chuyang Shao
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li Peng
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
| | - Paul W Paré
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, 79409, Texas, USA
| | - Huiming Zhang
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, the Chinese Academy of Sciences, Shanghai, 201602, China
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Prasertthai P, Paethaisong W, Theerakulpisut P, Dongsansuk A. High Temperature Alters Leaf Lipid Membrane Composition Associated with Photochemistry of PSII and Membrane Thermostability in Rice Seedlings. PLANTS (BASEL, SWITZERLAND) 2022; 11:1454. [PMID: 35684228 PMCID: PMC9183074 DOI: 10.3390/plants11111454] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
Rice cultivated in the tropics is exposed to high temperature (HT) stress which threatens its growth and survival. This study aimed at characterizing the HT response in terms of PSII efficiency and membrane stability, and to identify leaf fatty acid changes that may be associated with HT tolerance or sensitivity of rice genotypes. Twenty-eight-day-old seedlings of two Thai rice cultivars (CN1 and KDML105), a standard heat tolerance (N22), and a heat sensitive (IR64) rice genotype were treated at 42 °C for 7 days. Under HT, N22 showed the highest heat tolerance displaying the lowest increase in electrolyte leakage (EL), no increments in malondialdehyde (MDA) and stable maximum quantum yield of PSII efficiency (Fv/Fm). Compared to KDML105 and IR64, CN1 was more tolerant of HT, showing a lower increase in EL and MDA, and less reduction in Fv/Fm. N22 and CN1 showed a higher percentage reduction of unsaturated fatty acids (C18:2 and C18:3), which are the major components of the thylakoid membrane, rendering the optimum thylakoid membrane fluidity and intactness of PSII complex. Moreover, they exhibited sharp increases in long-chain fatty acids, particularly C22:1, while the heat sensitive IR64 and KDML105 showed significant reductions. Dramatic increases in long-chain fatty acids may lead to cuticular wax synthesis which provides protective roles for heat tolerance. Thus, the reduction in unsaturated fatty acid composition of the thylakoid membrane and dramatic increases in long-chain fatty acids may lead to high photosynthetic performance and an enhanced synthesis of cuticular wax which further provided additional protective roles for heat tolerance ability in rice.
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Affiliation(s)
- Paphitchaya Prasertthai
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand;
- Salt Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand; (W.P.); (P.T.)
| | - Warunya Paethaisong
- Salt Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand; (W.P.); (P.T.)
| | - Piyada Theerakulpisut
- Salt Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand; (W.P.); (P.T.)
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Anoma Dongsansuk
- Department of Agronomy, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand;
- Salt Tolerant Rice Research Group, Khon Kaen University, Khon Kaen 40002, Thailand; (W.P.); (P.T.)
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Camalle MD, Pěnčík A, Novák O, Zhao L, Zurgil U, Fait A, Tel-Zur N. Impairment of root auxin-cytokinins homeostasis induces collapse of incompatible melon grafts during fruit ripening. HORTICULTURE RESEARCH 2022; 9:uhac110. [PMID: 35795394 PMCID: PMC9252106 DOI: 10.1093/hr/uhac110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/23/2022] [Indexed: 06/15/2023]
Abstract
The factors underlying the plant collapse of certain melon-pumpkin graft combinations are not fully understood. Our working hypothesis was that impairment of photoassimilates transport in incompatible combinations induces an imbalance in the homeostasis of root auxin (indole-3-acetic acid; IAA) and of cytokinins, probably triggering plant collapse. Root IAA and cytokinins levels in the presence and absence of fruit and changes in root and scion metabolites were investigated in compatible and incompatible combinations. We showed elevated levels of IAA, 2-oxoindole-3-acetic acid (IAA catabolite), indole-3-acetylaspartate (IAA conjugate), and cis-zeatin-type cytokinins, but low levels of trans-zeatin-type cytokinins in the roots of plants of the incompatible combination during fruit ripening. Similarly, during fruit ripening, the expression of the YUCCA genes, YUC2, YUC6, and YUC11 (required for auxin biosynthesis), the GRETCHEN-HAGEN3 gene (required for auxin conjugation), and the cytokinin oxidase/dehydrogenase 7 (CKX7) gene (regulates the irreversible degradation of cytokinin) was enhanced in the roots of plants of the incompatible combination. Moreover, in the incompatible combination the fruiting process restricted transport of photoassimilates to the rootstock and induces their accumulation in the scion. In addition, high levels of hydrogen peroxide and malondialdehyde and reduced activity of antioxidant enzymes were observed in the roots of the incompatible graft. Our results showed that the collapse of the incompatible graft combination during fruit ripening is closely associated with a dramatic accumulation of IAA in the roots, which probably elicits oxidative damage and disturbs the balance of IAA and cytokinins that is of critical importance in melon-pumpkin graft compatibility.
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Affiliation(s)
- Maria Dolores Camalle
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 8499000, Israel
| | - Aleš Pěnčík
- Laboratory of Growth Regulators, Faculty of Science, The Czech Academy of Sciences, Palacký University & Institute of Experimental Botany, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
| | - Ondřej Novák
- Laboratory of Growth Regulators, Faculty of Science, The Czech Academy of Sciences, Palacký University & Institute of Experimental Botany, Šlechtitelů 27, CZ-783 71 Olomouc, Czech Republic
| | - Lina Zhao
- The Albert Katz International School for Desert Studies, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 8499000, Israel
| | - Udi Zurgil
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, P.O.B. 653, Beer Sheva 84104000, Israel
| | - Aaron Fait
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, P.O.B. 653, Beer Sheva 84104000, Israel
| | - Noemi Tel-Zur
- French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, P.O.B. 653, Beer Sheva 84104000, Israel
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Shiraku ML, Magwanga RO, Zhang Y, Hou Y, Kirungu JN, Mehari TG, Xu Y, Wang Y, Wang K, Cai X, Zhou Z, Liu F. Late embryogenesis abundant gene LEA3 (Gh_A08G0694) enhances drought and salt stress tolerance in cotton. Int J Biol Macromol 2022; 207:700-714. [PMID: 35341886 DOI: 10.1016/j.ijbiomac.2022.03.110] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 03/17/2022] [Indexed: 11/05/2022]
Abstract
Plants have evolved a complex and organized response to abiotic stress that involves physiological and metabolic reprogramming, transcription control, epigenetic regulation, and expressions of thousand interacting genes for instance the late embryogenesis abundant (LEA) proteins are expressed in multiple environmental variables during the plant developmental period, and thus play critical role in enhancing drought and salt stress tolerance. A comprehensive molecular and functional characterization of the LEA3 gene was carried out in cotton under abiotic stress conditions in order to elucidate their functions. Seventy eight genes were identified in cotton, and were clustered into six clades moreover; the LEA genes were more upregulated in the tissues of the tetraploid cotton compared to the diploid type. A key gene, Gh_A08G0694 was the most upregulated, and was knocked in tetraploid cotton, the knocked out significantly increased the susceptibility of cotton plants to salinity and drought stresses, moreover, several ABA/stress-associated genes were down regulated. Similarly, overexpression of the key gene, significantly increased tolerance of the overexpressed plants to drought and salinity stress. The key gene is homologous to GhLEA3 protein, found to have strong interaction to key abiotic stress tolerance genes, voltage-dependent anion channel 1 (VDAC1) and glyceraldehyde-3-phosphate dehydrogenase A (gapA).
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Affiliation(s)
- Margaret L Shiraku
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Richard Odongo Magwanga
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China; School of Biological and Physical Sciences (SBPS), Main Campus, Jaramogi Oginga Odinga University of Science and Technology (JOOUST), Main Campus, P.O. Box 210-40601, Bondo, Kenya
| | - Yuanyuan Zhang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Yuqing Hou
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Joy Nyangasi Kirungu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Teame Gereziher Mehari
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Yanchao Xu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Yuhong Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China
| | - Kunbo Wang
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China.
| | - Xiaoyan Cai
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China; School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan 450001, People's Republic of China.
| | - Zhongli Zhou
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China.
| | - Fang Liu
- State Key Laboratory of Cotton Biology/Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS), Anyang, Henan 455000, China; School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan 450001, People's Republic of China.
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Shirzadian-Khorramabad R, Moazzenzadeh T, Sajedi RH, Jing HC, Hille J, Dijkwel PP. A mutation in Arabidopsis SAL1 alters its in vitro activity against IP 3 and delays developmental leaf senescence in association with lower ROS levels. PLANT MOLECULAR BIOLOGY 2022; 108:549-563. [PMID: 35122174 DOI: 10.1007/s11103-022-01245-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 01/21/2022] [Indexed: 06/14/2023]
Abstract
Our manuscript is the first to find a link between activity of SAL1/OLD101 against IP3 and plant leaf senescence regulation and ROS levels assigning a potential biological role for IP3. Leaf senescence is a genetically programmed process that limits the longevity of a leaf. We identified and analyzed the recessive Arabidopsis stay-green mutation onset of leaf death 101 (old101). Developmental leaf longevity is extended in old101 plants, which coincided with higher peroxidase activity and decreased H2O2 levels in young 10-day-old, but not 25-day-old plants. The old101 phenotype is caused by a point mutation in SAL1, which encodes a bifunctional enzyme with inositol polyphosphate-1-phosphatase and 3' (2'), 5'-bisphosphate nucleotidase activity. SAL1 activity is highly specific for its substrates 3-polyadenosine 5-phosphate (PAP) and inositol 1, 4, 5-trisphosphate (IP3), where it removes the 1-phosphate group from the IP3 second messenger. The in vitro activity of recombinant old101 protein against its substrate IP3 was 2.5-fold lower than that of wild type SAL1 protein. However, the in vitro activity of recombinant old101 mutant protein against PAP remained the same as that of the wild type SAL1 protein. The results open the possibility that the activity of SAL1 against IP3 may affect the redox balance of young seedlings and that this delays the onset of leaf senescence.
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Affiliation(s)
- Reza Shirzadian-Khorramabad
- Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
- Molecular Biology of Plants, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Kerklaan 30, 9751 NN, Haren, The Netherlands.
- School of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand.
| | - Taghi Moazzenzadeh
- Department of Agricultural Biotechnology, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran
- MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands
| | - Reza H Sajedi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Hai-Chun Jing
- Molecular Biology of Plants, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Kerklaan 30, 9751 NN, Haren, The Netherlands
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Jacques Hille
- Molecular Biology of Plants, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Kerklaan 30, 9751 NN, Haren, The Netherlands
| | - Paul P Dijkwel
- Molecular Biology of Plants, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Kerklaan 30, 9751 NN, Haren, The Netherlands
- School of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand
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Ma Y, Ankit, Tiwari J, Bauddh K. Plant-Mycorrhizal Fungi Interactions in Phytoremediation of Geogenic Contaminated Soils. Front Microbiol 2022; 13:843415. [PMID: 35283821 PMCID: PMC8908265 DOI: 10.3389/fmicb.2022.843415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 01/25/2022] [Indexed: 11/26/2022] Open
Abstract
Soil contamination by geogenic contaminants (GCs) represents an imperative environmental problem. Various soil remediation methods have been successfully employed to ameliorate the health risks associated with GCs. Phytoremediation is considered as an eco-friendly and economical approach to revegetate GC-contaminated soils. However, it is a very slow process, as plants take a considerable amount of time to gain biomass. Also, the process is limited only to the depth and surface area of the root. Inoculation of arbuscular mycorrhizal fungi (AMF) with remediating plants has been found to accelerate the phytoremediation process by enhancing plant biomass and their metal accumulation potential while improving the soil physicochemical and biological characteristics. Progress in the field application is hindered by a lack of understanding of complex interactions between host plant and AMF that contribute to metal detoxification/(im)mobilization/accumulation/translocation. Thus, this review is an attempt to reveal the underlying mechanisms of plant-AMF interactions in phytoremediation.
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Affiliation(s)
- Ying Ma
- College of Resources and Environment, Southwest University, Chongqing, China
| | - Ankit
- Department of Environmental Sciences, Central University of Jharkhand, Ranchi, India
| | - Jaya Tiwari
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kuldeep Bauddh
- Department of Environmental Sciences, Central University of Jharkhand, Ranchi, India
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Yu X, Zhu Y, Xie Y, Li L, Jin Z, Shi Y, Luo C, Wei Y, Cai Q, He W, Zheng Y, Xie H, Zhang J. Ubiquitylomes and proteomes analyses provide a new interpretation of the molecular mechanisms of rice leaf senescence. PLANTA 2022; 255:43. [PMID: 35044566 DOI: 10.1007/s00425-021-03793-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 11/15/2021] [Indexed: 06/14/2023]
Abstract
We identified a typical rice premature senescence leaf mutant 86 (psl86) and exhibited the first global ubiquitination data during rice leaf senescence. Premature leaf senescence affects the yield and quality of rice, causing irreparable agricultural economic losses. In this study, we reported a rice premature senescence leaf mutant 86 (psl86) in the population lines of rice (Oryza sativa) japonica cultivar 'Yunyin' (YY) mutagenized using ethyl methane sulfonate (EMS) treatment. Immunoblotting analysis revealed that a higher ubiquitination level in the psl86 mutant compared with YY. Thus, we performed the proteome and ubiquitylome analyses to identify the differential abundance proteins and ubiquitinated proteins (sites) related to leaf senescence. Among 885 quantified lysine ubiquitination (Kub) sites in 492 proteins, 116 sites in 94 proteins were classified as up-regulated targets and seven sites in six proteins were classified as down-regulated targets at a threshold of 1.5. Proteins with up-regulated Kub sites were mainly enriched in the carbon fixation in photosynthetic organisms, glycolysis/gluconeogenesis and the pentose phosphate pathway. Notably, 14 up-regulated Kub sites in 11 proteins were enriched in the carbon fixation in photosynthetic organism pathway, and seven proteins (rbcL, PGK, GAPA, FBA5, ALDP, CFBP1 and GGAT) were down-regulated, indicating this pathway is tightly regulated by ubiquitination during leaf senescence. To our knowledge, we present the first global data on ubiquitination during rice leaf senescence.
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Affiliation(s)
- Xiangzhen Yu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Yongsheng Zhu
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Yunjie Xie
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Lele Li
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Ziyi Jin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Yunrui Shi
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Cuiqin Luo
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Yidong Wei
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Qiuhua Cai
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Wei He
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Yanmei Zheng
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China
| | - Huaan Xie
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China.
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China.
| | - Jianfu Zhang
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, 350018, China.
- Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Ministry of Agriculture and Affairs, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding Between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, National Rice Improvement Center of China, Fuzhou, 350003, China.
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Zhang Z, Liu C, Li K, Li X, Xu M, Guo Y. CLE14 functions as a "brake signal" to suppress age-dependent and stress-induced leaf senescence by promoting JUB1-mediated ROS scavenging in Arabidopsis. MOLECULAR PLANT 2022; 15:179-188. [PMID: 34530165 DOI: 10.1016/j.molp.2021.09.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/09/2021] [Accepted: 09/12/2021] [Indexed: 06/13/2023]
Abstract
Leaf senescence is an important developmental process in the plant life cycle and has a significant impact on agriculture. When facing harsh environmental conditions, monocarpic plants often initiate early leaf senescence as an adaptive mechanism to ensure a complete life cycle. Upon initiation, the senescence process is fine-tuned through the coordination of both positive and negative regulators. Here, we report that the small secreted peptide CLAVATA3/ESR-RELATED 14 (CLE14) functions in the suppression of leaf senescence by regulating ROS homeostasis in Arabidopsis. Expression of the CLE14-encoding gene in leaves was significantly induced by age, high salinity, abscisic acid (ABA), salicylic acid, and jasmonic acid. CLE14 knockout plants displayed accelerated progression of both natural and salinity-induced leaf senescence, whereas increased CLE14 expression or treatments with synthetic CLE14 peptides delayed senescence. CLE14 peptide treatments also delayed ABA-induced senescence in detached leaves. Further analysis showed that overexpression of CLE14 led to reduced ROS levels in leaves, where higher expression of ROS scavenging genes was detected. Moreover, CLE14 signaling resulted in transcriptional activation of JUB1, a NAC family transcription factor previously identified as a negative regulator of senescence. Notably, the delay of leaf senescence, reduction in H2O2 level, and activation of ROS scavenging genes by CLE14 peptides were dependent on JUB1. Collectively, these results suggest that the small peptide CLE14 serves as a novel "brake signal" to regulate age-dependent and stress-induced leaf senescence through JUB1-mediated ROS scavenging.
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Affiliation(s)
- Zenglin Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China
| | - Cheng Liu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China
| | - Kui Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China
| | - Xiaoxu Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China
| | - Mengmeng Xu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China
| | - Yongfeng Guo
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266101, China.
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Zhang X, Feng Y, Jing T, Liu X, Ai X, Bi H. Melatonin Promotes the Chilling Tolerance of Cucumber Seedlings by Regulating Antioxidant System and Relieving Photoinhibition. FRONTIERS IN PLANT SCIENCE 2021; 12:789617. [PMID: 34956288 PMCID: PMC8695794 DOI: 10.3389/fpls.2021.789617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/10/2021] [Indexed: 05/31/2023]
Abstract
Chilling adversely affects the photosynthesis of thermophilic plants, which further leads to a decline in growth and yield. The role of melatonin (MT) in the stress response of plants has been investigated, while the mechanisms by which MT regulates the chilling tolerance of chilling-sensitive cucumber remain unclear. This study demonstrated that MT positively regulated the chilling tolerance of cucumber seedlings and that 1.0 μmol⋅L-1 was the optimum concentration, of which the chilling injury index, electrolyte leakage (EL), and malondialdehyde (MDA) were the lowest, while growth was the highest among all treatments. MT triggered the activity and expression of antioxidant enzymes, which in turn decreased hydrogen peroxide (H2O2) and superoxide anion (O2 ⋅-) accumulation caused by chilling stress. Meanwhile, MT attenuated the chilling-induced decrease, in the net photosynthetic rate (Pn) and promoted photoprotection for both photosystem II (PSII) and photosystem I (PSI), regarding the higher maximum quantum efficiency of PSII (Fv/Fm), actual photochemical efficiency (ΦPSII), the content of active P700 (ΔI/I0), and photosynthetic electron transport. The proteome analysis and western blot data revealed that MT upregulated the protein levels of PSI reaction center subunits (PsaD, PsaE, PsaF, PsaH, and PsaN), PSII-associated protein PsbA (D1), and ribulose-1,5-bisphosphate carboxylase or oxygenase large subunit (RBCL) and Rubisco activase (RCA). These results suggest that MT enhances the chilling tolerance of cucumber through the activation of antioxidant enzymes and the induction of key PSI-, PSII-related and carbon assimilation genes, which finally alleviates damage to the photosynthetic apparatus and decreases oxidative damage to cucumber seedlings under chilling stress.
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Affiliation(s)
| | | | | | | | | | - Huangai Bi
- State Key Laboratory of Crop Biology, Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
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García-Caparrós P, De Filippis L, Gul A, Hasanuzzaman M, Ozturk M, Altay V, Lao MT. Oxidative Stress and Antioxidant Metabolism under Adverse Environmental Conditions: a Review. THE BOTANICAL REVIEW 2021; 87:421-466. [PMID: 0 DOI: 10.1007/s12229-020-09231-1] [Citation(s) in RCA: 117] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/01/2020] [Indexed: 05/25/2023]
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Sarkar P, Tamili D, Bhattacharjee P. Low dose gamma‐irradiation enhances shelf‐life and contents of serotonin and melatonin in green plantains (
Musa paradisiaca
): A study involving antioxidant synergy. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Poulami Sarkar
- Department of Food Technology and Biochemical Engineering Jadavpur University Kolkata India
| | - Dipshikha Tamili
- Department of Food Technology and Biochemical Engineering Jadavpur University Kolkata India
| | - Paramita Bhattacharjee
- Department of Food Technology and Biochemical Engineering Jadavpur University Kolkata India
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Malangisha GK, Li C, Yang H, Mahmoud A, Ali A, Wang C, Yang Y, Yang J, Hu Z, Zhang M. Permissive action of H 2O 2 mediated ClUGT75 expression for auxin glycosylation and Al 3+- tolerance in watermelon. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:77-90. [PMID: 34340025 DOI: 10.1016/j.plaphy.2021.07.022] [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: 02/23/2021] [Revised: 07/04/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
Although Al3+-toxicity is one of the limiting factors for crop production in acidic soils, little is known about the Al3+-tolerance mechanism in watermelon, a fairly acid-tolerant crop. This work aimed to identify the interaction between the H2O2 scavenging pathway and auxin glycosylation relevant to watermelon Al3+-tolerance. By analyzing expressions of hormone-related ClUGTs and antioxidant enzyme genes in Al3+-tolerant (ZJ) and Al3+-sensitive (NBT) cultivars, we identified ClUGT75s (B1, B2, and D1) and ClSOD1-2-ClCAT as crucial components associated with Al3+-tolerance. Al3+-stress significantly increased H2O2 content by 92.7% in NBT and 42.3% in ZJ, accompanied by less Al3+-, auxin (IAA and IBA), and MDA contents in ZJ than NBT. These findings coincided with significant ClSOD1-2 expression and stable dismutation activity in NBT than ZJ. Hence, higher H2O2 content in the root apex of NBT than ZJ correlated with a significant increase in auxin content and ClSOD1-2 up-regulation. Moreover, Al3+-activated ClUGT75D1 and ClUGT75B2 in ZJ coincided with no considerable change in IBA content, suggesting that glycosylation-mediated changes in IBA content might be relevant to Al3+-tolerance in watermelon. Furthermore, exogenous H2O2 and IBA indicated ClUGT75D1 modulating IBA is likely dependent on H2O2 background. We hypothesize that a higher H2O2 level in NBT represses ClUGT75, resulting in increased auxin than those in ZJ roots. Thus, excess in both H2O2 and auxin aggravated the inhibition of root elongation under Al3+-stress. Our findings provide insights on the permissive action of H2O2 in the mediation of auxin glycosylation by ClUGT75 in root apex for Al3+-tolerance in watermelon.
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Affiliation(s)
- Guy Kateta Malangisha
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China; Hainan Institute of Zhejiang University, Yazhou District, Sanya, 572025, PR China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou, 310058, PR China; Faculté des Sciences Agronomiques, Université de Lubumbashi, /UNILU, Lubumbashi, République Démocratique Du Congo/PO Box 1825, PR China
| | - Cheng Li
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China
| | - Haiyang Yang
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China
| | - Ahmed Mahmoud
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China
| | - Abid Ali
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China
| | - Chi Wang
- Agriculture, Rural Development and Water Conservancy Bureau of Wenling, Wenling, 317500, PR China
| | - Yubin Yang
- Agriculture, Rural Development and Water Conservancy Bureau of Wenling, Wenling, 317500, PR China
| | - Jinghua Yang
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China; Hainan Institute of Zhejiang University, Yazhou District, Sanya, 572025, PR China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou, 310058, PR China
| | - Zhongyuan Hu
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China; Hainan Institute of Zhejiang University, Yazhou District, Sanya, 572025, PR China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou, 310058, PR China.
| | - Mingfang Zhang
- Laboratory of Germplasm Innovation and Molecular Breeding, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, PR China; Hainan Institute of Zhejiang University, Yazhou District, Sanya, 572025, PR China; Key Laboratory of Horticultural Plant Growth, Development and Quality Improvement, Ministry of Agriculture, Hangzhou, 310058, PR China
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Changes in Reactive Oxygen Species, Antioxidants and Carbohydrate Metabolism in Relation to Dormancy Transition and Bud Break in Apple ( Malus × domestica Borkh) Cultivars. Antioxidants (Basel) 2021; 10:antiox10101549. [PMID: 34679683 PMCID: PMC8532908 DOI: 10.3390/antiox10101549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/27/2021] [Accepted: 09/27/2021] [Indexed: 01/11/2023] Open
Abstract
Understanding the biochemical mechanisms underlying bud dormancy and bloom time regulation in deciduous woody perennials is critical for devising effective strategies to protect these species from spring frost damage. This study investigated the accumulation profiles of carbohydrates, ROS and antioxidants during dormancy in ‘Cripps Pink’ and ‘Honeycrisp’, two apple cultivars representing the early and late bloom cultivars, respectively. Our data showed that starch levels generally declined during dormancy, whereas soluble sugars increased. However, the present study did not record significant alternations in the carbohydrate accumulation profiles between the two cultivars that could account for the differences in their bloom dates. On the other hand, H2O2 accumulation patterns revealed an apparent correlation with the dormancy stage and bloom dates in both cultivars; peaking early in the early-blooming cultivar, sustaining high levels for a longer time in the late-blooming cultivars, and fading by the time of bud burst in both cultivars. Also, the redox balance during dormancy appeared to be maintained mainly by catalase and, to a lesser extent, by glutathione (GSH). Overall, the present study concludes that differences in ROS and the bud redox balance could, at least partially, explain the differences in dormancy duration and bloom date among apple cultivars.
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