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Li J, Chen Y, Wang L, Li D, Liu L, Li M. An ethylene response factor AcERF116 identified from A. catechu is involved in fruitlet abscission. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 344:112091. [PMID: 38615719 DOI: 10.1016/j.plantsci.2024.112091] [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: 03/06/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Procedural abscission of outer reproductive organs during flower and fruit development occurs in most plant lineages. Undesired abscission, such as fruitlet shedding causes considerable yield loss in many fruit-producing species. Ethylene is one of the key factors regulating organ abscission. However, the participants involved in the ethylene-mediated abscission pathway remains largely unidentified. In this study, we focused on the ethylene response transcription factors (ERFs) regulating fruitlet abscission in an industrial tree species, A. catechu. A total of 165 ERF genes have been found in the A. catechu genome and eight of these showed distinct expression between the "about-to-abscise" and "non-abscised" samples. An AcERF116 gene with high expression level in the fruit abscission zone (FAZ) was selected for further study. Overexpression of the AcERF116 gene accelerated cell separation in the abscission zone (AZ) and promoted pedicel abscission in transgenic tomato lines. The PG (ploygalacturonase) activity was enhanced in the FAZs of A. catechu fruitlets during ethylene-induced fruitlet abscission, while the PME (pectin methylesterase) activity was suppressed. In addition, cytosolic alkalization was observed in the AZs during abscission in both tomato and A. catechu. Our results suggest that AcERF116 plays a critical role in the crosstalk of ethylene and fruitlet abscission in A. catechu.
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Affiliation(s)
- Jia Li
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, Hainan 571339, PR China
| | - Yunche Chen
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, Hainan 571339, PR China; College of Life Sciences, Chongqing Normal University, Chongqing 401331, PR China
| | - Linkai Wang
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, Hainan 571339, PR China
| | - Dongxia Li
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, Hainan 571339, PR China
| | - Liyun Liu
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, Hainan 571339, PR China.
| | - Meng Li
- College of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan 410004, PR China.
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Geilfus CM, Zörb C, Jones JJ, Wimmer MA, Schmöckel SM. Water for agriculture: more crop per drop. PLANT BIOLOGY (STUTTGART, GERMANY) 2024; 26:499-507. [PMID: 38773740 DOI: 10.1111/plb.13652] [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: 06/30/2023] [Accepted: 04/04/2024] [Indexed: 05/24/2024]
Abstract
Global crop production in agriculture depends on water availability. Future scenarios predict increasing occurrence of flash floods and rapidly developing droughts accompanied by heatwaves in humid regions that rely on rain-fed agriculture. It is challenging to maintain high crop yields, even in arid and drought-prone regions that depend on irrigation. The average water demand of crops varies significantly, depending on plant species, development stage, and climate. Most crops, such as maize and wheat, require relatively more water during the vegetative phase compared to the ripening phase. In this review, we explain WUE and options to improve water use and thus crop yield. Nutrient management might represent another possibility to manipulate water uptake and use by plants. An emerging topic involves agroforest co-cultivation, where trees in the system facilitate water transfer through hydraulic lift, benefiting neighbouring crops. Other options to enhance crop yield per water use are discussed.
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Affiliation(s)
- C-M Geilfus
- Department of Plant Nutrition and Soil Science, Hochschule Geisenheim University, Geisenheim, Germany
| | - C Zörb
- Department Quality of Plant Products, Institute of Crop Science, University of Hohenheim, Stuttgart, Germany
| | - J J Jones
- Division of Controlled Environment Horticulture, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-University of Berlin, Berlin, Germany
| | - M A Wimmer
- Department Quality of Plant Products, Institute of Crop Science, University of Hohenheim, Stuttgart, Germany
| | - S M Schmöckel
- Department Physiology of Yield Stability, Institute of Crop Science, University of Hohenheim, Stuttgart, Germany
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Li J, Chen Y, Zhou G, Li M. Phytohormones and candidate genes synergistically regulate fruitlet abscission in Areca catechu L. BMC PLANT BIOLOGY 2023; 23:537. [PMID: 37919647 PMCID: PMC10623784 DOI: 10.1186/s12870-023-04562-8] [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: 06/12/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND The fruit population of most plants is under the control of a process named "physiological drop" to selectively abort some developing fruitlets. However, frequent fruitlet abscission severely restricts the yield of Areca catechu. To reveal the physiological and molecular variations in this process, we detected the variation of phytohormone levels in abscised and non-abscised fruitlets in A. catechu. RESULTS The levels of gibberellin acid, jasmonic acid, salicylic acid, abscisic acid and zeatin were elevated, while the indole-3-acetic acid and indole-3-carboxaldehyde levels were declined in the "about-to-abscise" part (AB) of abscission zone (AZ) compared to the "non-abscised" part (CK). Then the differentially expressed genes (DEGs) between AB and CK were screened based on transcriptome data. DEGs involved in phytohormone synthesis, response and transportation were identified as key genes. Genes related to cell wall biosynthesis, degradation, loosening and modification, and critical processes during fruit abscission were identified as role players. In addition, genes encoding transcription factors, such as NAC, ERF, WRKY, MADS and Zinc Finger proteins, showed differentially expressed patterns between AB and CK, were also identified as candidates. CONCLUSIONS These results unraveled a phytohormone signaling cross talk and key genes involved in the fruitlet abscission process in A. catechu. This study not only provides a theoretical basis for fruitlet abscission in A. catechu, but also identified many candidate genes or potential molecular markers for further breeding of fruit trees.
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Affiliation(s)
- Jia Li
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, 570228, China
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, 571339, Hainan, China
| | - Yunche Chen
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, Wenchang, 571339, Hainan, China
| | - Guangzhen Zhou
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, 570228, China
| | - Meng Li
- College of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, P. R. China.
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4
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Wu H, He Q, Wang Q. Advances in Rice Seed Shattering. Int J Mol Sci 2023; 24:ijms24108889. [PMID: 37240235 DOI: 10.3390/ijms24108889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Seed shattering is an important trait that wild rice uses to adapt to the natural environment and maintain population reproduction, and weedy rice also uses it to compete with the rice crop. The loss of shattering is a key event in rice domestication. The degree of shattering is not only one of the main reasons for rice yield reduction but also affects its adaptability to modern mechanical harvesting methods. Therefore, it is important to cultivate rice varieties with a moderate shattering degree. In this paper, the research progress on rice seed shattering in recent years is reviewed, including the physiological basis, morphological and anatomical characteristics of rice seed shattering, inheritance and QTL/gene mapping of rice seed shattering, the molecular mechanism regulating rice seed shattering, the application of seed-shattering genes, and the relationship between seed-shattering genes and domestication.
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Affiliation(s)
- Hao Wu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Qi He
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Quan Wang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
- College of Agricultural Sciences, Nankai University, Tianjin 300071, China
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Liu H, Li Y, Peng T, Xue S. Transmembrane potential, an indicator in situ reporting cellular senescence and stress response in plant tissues. PLANT METHODS 2023; 19:27. [PMID: 36945027 PMCID: PMC10029184 DOI: 10.1186/s13007-023-01006-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Plant cells usually sustain a stable membrane potential due to influx and/or efflux of charged ions across plasma membrane. With the growth and development of plants, different tissues and cells undergo systemic or local programmed decline. Whether the membrane potential of plasma membrane could report senescence signal of plant tissues and cells is unclear. RESULTS We applied a maneuverable transmembrane potential (TMP) detection method with patch-clamp setup to examine the senescence signal of leaf tissue cells in situ over the whole life cycle in Arabidopsis thaliana. The data showed that the TMPs of plant tissues and cells were varied at different growth stages, and the change of TMP was higher at the vegetative growth stage than at the reproductive stage of plant growth. The distinct change of TMP was detectable between the normal and the senescent tissues and cells in several plant species. Moreover, diverse abiotic stimuli, such as heat stress, hyperpolarized the TMP in a short time, followed by depolarized membrane potential with the senescence occurring. We further examined the TMP of plant chloroplasts, which also indicates the senescence signal in organelles. CONCLUSIONS This convenient TMP detection method can report the senescence signal of plant tissues and cells, and can also indicate the potential of plant tolerance to environmental stress.
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Affiliation(s)
- Hai Liu
- College of Life Science and Technology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yufei Li
- College of Life Science and Technology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ting Peng
- College of Agriculture, Guizhou University, Guiyang, 550025, China
| | - Shaowu Xue
- College of Life Science and Technology, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
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Tadeo FR, Agustí J, Merelo P, Talón M. Laser Microdissection: A High-Precision Approach to Isolate Specific Cell Types from Any Plant Species for Downstream Molecular Analyses. Methods Mol Biol 2023; 2642:365-373. [PMID: 36944888 DOI: 10.1007/978-1-0716-3044-0_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Plants display a great diversity of particular cell types that obviously perform functions and regulations that are essential for successful growth and development, whether under optimal or adverse conditions. The functions performed by each of these particular cell types must be associated with specific transcriptomic, proteomic, and metabolic profiles that cannot be disentangled by analyzing whole plant organs and tissues. Laser microdissection is a technique for the collection of specific cell types in plant organs and tissues comprising heterogeneous cell populations. It has been successfully used for physiological and molecular studies. Laser microdissection can be applied to any plant species as long as it is possible to reliably identify the cell types of interest. Here, we describe step by step, using citrus as a model plant, a fast, simple, easy to perform, and experimentally validated protocol to collect cells from the abscission zone, a specific tissue that is difficult to access and whose activity is important in the response of plants to adverse environmental conditions.
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Affiliation(s)
- Francisco R Tadeo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias, Moncada, Valencia, Spain.
| | - Javier Agustí
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias, Moncada, Valencia, Spain
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Paz Merelo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias, Moncada, Valencia, Spain
- Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas, Valencia, Spain
| | - Manuel Talón
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias, Moncada, Valencia, Spain
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Jiang C, Liang Y, Deng S, Liu Y, Zhao H, Li S, Jiang CZ, Gao J, Ma C. The RhLOL1-RhILR3 module mediates cytokinin-induced petal abscission in rose. THE NEW PHYTOLOGIST 2023; 237:483-496. [PMID: 36263705 DOI: 10.1111/nph.18556] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
In many plant species, petal abscission can be considered the final step of petal senescence. Cytokinins (CKs) are powerful suppressors of petal senescence; however, their role in petal abscission is ambiguous. Here, we observed that, in rose (Rosa hybrida), biologically active CK is accumulated during petal abscission and acts as an accelerator of the abscission process. Using a combination of reverse genetics, and molecular and biochemical techniques, we explored the roles of a LESION SIMULATING DISEASE1 (LSD1) family member RhLOL1 interacting with a bHLH transcription factor RhILR3 in CK-induced petal abscission. Silencing RhLOL1 delays rose petal abscission, while the overexpression of its ortholog SlLOL1 in tomato (Solanum lycopersicum) promotes pedicel abscission, indicating the conserved function of LOL1 in activating plant floral organ abscission. In addition, we identify a bHLH transcription factor, RhILR3, that interacts with RhLOL1. We show that RhILR3 binds to the promoters of the auxin signaling repressor auxin/indole-3-acetic acid (Aux/IAA) genes to inhibit their expression; however, the interaction of RhLOL1 with RhILR3 activates the expression of the Aux/IAA genes including RhIAA4-1. Silencing RhIAA4-1 delays rose petal abscission. Our results thus reveal a RhLOL1-RhILR3 regulatory module involved in CK-induced petal abscission via the regulation of the expression of the Aux/IAA genes.
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Affiliation(s)
- Chuyan Jiang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yue Liang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Shuning Deng
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yang Liu
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Haohao Zhao
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Susu Li
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Cai-Zhong Jiang
- Crops Pathology and Genetic Research Unit, United States Department of Agriculture, Agricultural Research Service, Davis, CA, 95616, USA
- Department of Plant Sciences, University of California at Davis, Davis, CA, 95616, USA
| | - Junping Gao
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Chao Ma
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
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8
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Crick J, Corrigan L, Belcram K, Khan M, Dawson JW, Adroher B, Li S, Hepworth SR, Pautot V. Floral organ abscission in Arabidopsis requires the combined activities of three TALE homeodomain transcription factors. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:6150-6169. [PMID: 35689803 DOI: 10.1093/jxb/erac255] [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: 09/03/2021] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Floral organ abscission is a separation process in which sepals, petals, and stamens detach from the plant at abscission zones. Here, we investigated the collective role of three amino-acid-loop-extension (TALE) homeobox genes ARABIDOPSIS THALIANA HOMEOBOX GENE1 (ATH1), KNAT6 (for KNOTTED LIKE from Arabidopsis thaliana) and KNAT2, which form a module that patterns boundaries under the regulation of BLADE-ON-PETIOLE 1 and 2 (BOP1/2) co-activators. These TALE homeodomain transcription factors were shown to maintain boundaries in the flower, functioning as a unit to coordinate the growth, patterning, and activity of abscission zones. Together with BOP1 and BOP2, ATH1 and its partners KNAT6 and KNAT2 collectively contribute to the differentiation of lignified and separation layers of the abscission zone. The genetic interactions of BOP1/2 and ATH1 with INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) were also explored. We showed that BOP1/2 co-activators and ATH1 converge with the IDA signalling pathway to promote KNAT6 and KNAT2 expression in the abscission zone and cell separation. ATH1 acts as a central regulator in floral organ abscission as it controls the expression of other TALE genes in abscission zone cells.
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Affiliation(s)
- Jennifer Crick
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Laura Corrigan
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Katia Belcram
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Madiha Khan
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Jeff W Dawson
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Bernard Adroher
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
| | - Sibei Li
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | | | - Véronique Pautot
- Université Paris-Saclay, INRAE, AgroParisTech, Institut Jean-Pierre Bourgin (IJPB), Versailles, France
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9
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Wang X, Wang Y, Yan S, Sun X, Liu H, Cheng B, Xu X, Wei Z, Zhang G. A multifaceted comparison between the fruit-abscission and fruit-retention cultivars in ornamental crabapple. FRONTIERS IN PLANT SCIENCE 2022; 13:1013263. [PMID: 36212288 PMCID: PMC9535355 DOI: 10.3389/fpls.2022.1013263] [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: 08/06/2022] [Accepted: 08/17/2022] [Indexed: 06/16/2023]
Abstract
The ornamental crabapple is a multipurpose landscaping tree that bears brilliant fruit throughout the winter. However, whether or not its fruit persists after maturation is specifically correlated to cultivar characteristics. In this work, we screened two different types that display fruit-retention ("Donald Wyman," "Red Jewel," and "Sugar Tyme") and fruit-abscission ("Radiant" and "Flame") in Northern China across the whole winter using multi-year successional records. Fruit-abscission was determined predominantly by the abscission zone established at the base of the pedicel, regardless of fruit size and pedicel length, according to the results of the comparative research. The primary physiological rationale was the accumulation of hydrolases activity (pectinesterase, cellulase, polygalacturonase, and β-glucosidase). Comparative transcriptomics further identified a number of upregulated DEGs involved in the synthesis pathways of canonical phytohormones, such as ethylene, jasmonic acid, abscisic acid, and cytokinin, as well as 12 transcription factors linked in downstream signaling in fruit-abscission cultivars. Finally, a model incorporating multi-layered modulation was proposed for the fruit abscission of ornamental crabapple. This study will serve as the foundation for the development of fruit-viewing crabapples that have an extended ornamental lifetime.
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Affiliation(s)
- Xue Wang
- College of Horticultural Science and Technology, Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Normal University of Science and Technology, Qinhuangdao, China
- Institute of Grassland Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing, China
| | - Shufang Yan
- Hebei Academy of Forestry and Grassland Sciences, Hebei Forest City Construction Technology Innovation Center, Shijiazhuang, China
| | - Xuan Sun
- Institute of Grassland Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Hongyan Liu
- Institute of Grassland Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Beibei Cheng
- College of Horticultural Science and Technology, Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Normal University of Science and Technology, Qinhuangdao, China
| | - Xingxing Xu
- College of Horticultural Science and Technology, Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Normal University of Science and Technology, Qinhuangdao, China
| | - Zunzheng Wei
- Institute of Grassland Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Guojun Zhang
- College of Horticultural Science and Technology, Hebei Key Laboratory of Horticultural Germplasm Excavation and Innovative Utilization, Hebei Normal University of Science and Technology, Qinhuangdao, China
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10
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Lee J, Chen H, Lee G, Emonet A, Kim S, Shim D, Lee Y. MSD2-mediated ROS metabolism fine-tunes the timing of floral organ abscission in Arabidopsis. THE NEW PHYTOLOGIST 2022; 235:2466-2480. [PMID: 35689444 PMCID: PMC9543660 DOI: 10.1111/nph.18303] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 05/27/2022] [Indexed: 06/14/2023]
Abstract
The timely removal of end-of-purpose flowering organs is as essential for reproduction and plant survival as timely flowering. Despite much progress in understanding the molecular mechanisms of floral organ abscission, little is known about how various environmental factors are integrated into developmental programmes that determine the timing of abscission. Here, we investigated whether reactive oxygen species (ROS), mediators of various stress-related signalling pathways, are involved in determining the timing of abscission and, if so, how they are integrated with the developmental pathway in Arabidopsis thaliana. MSD2, encoding a secretory manganese superoxide dismutase, was preferentially expressed in the abscission zone of flowers, and floral organ abscission was accelerated by the accumulation of ROS in msd2 mutants. The expression of the genes encoding the receptor-like kinase HAESA (HAE) and its cognate peptide ligand INFLORESCENCE DEFICIENT IN ABSCISSION (IDA), the key signalling components of abscission, was accelerated in msd2 mutants, suggesting that MSD2 acts upstream of IDA-HAE. Further transcriptome and pharmacological analyses revealed that abscisic acid and nitric oxide facilitate abscission by regulating the expression of IDA and HAE during MSD2-mediated signalling. These results suggest that MSD2-dependent ROS metabolism is an important regulatory point integrating environmental stimuli into the developmental programme leading to abscission.
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Affiliation(s)
- Jinsu Lee
- Research Institute of Basic SciencesSeoul National UniversitySeoul08826Korea
- Research Centre for Plant PlasticitySeoul National UniversitySeoul08826Korea
| | - Huize Chen
- Research Institute of Basic SciencesSeoul National UniversitySeoul08826Korea
- Higher Education Key Laboratory of Plant Molecular and Environmental Stress Response in Shanxi ProvinceShanxi Normal UniversityTaiyuan030000ShanxiChina
| | - Gisuk Lee
- Department of Biological SciencesKorea Advanced Institute for Science and TechnologyDaejeon34141Korea
| | - Aurélia Emonet
- Department of Plant Molecular BiologyUniversity of Lausanne1015LausanneSwitzerland
| | - Sang‐Gyu Kim
- Department of Biological SciencesKorea Advanced Institute for Science and TechnologyDaejeon34141Korea
| | - Donghwan Shim
- Department of Biological SciencesChungnam National UniversityDaejeon34134Korea
| | - Yuree Lee
- Research Centre for Plant PlasticitySeoul National UniversitySeoul08826Korea
- School of Biological SciencesSeoul National UniversitySeoul08826Korea
- Plant Genomics and Breeding InstituteSeoul National UniversitySeoul08826Korea
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11
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Li F, Wu Q, Liao B, Yu K, Huo Y, Meng L, Wang S, Wang B, Du M, Tian X, Li Z. Thidiazuron Promotes Leaf Abscission by Regulating the Crosstalk Complexities between Ethylene, Auxin, and Cytokinin in Cotton. Int J Mol Sci 2022; 23:ijms23052696. [PMID: 35269837 PMCID: PMC8910847 DOI: 10.3390/ijms23052696] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 01/27/2023] Open
Abstract
Thidiazuron (TDZ) is widely used as a defoliant to induce leaf abscission in cotton. However, the underlying molecular mechanism is still unclear. In this study, RNA-seq and enzyme-linked immunosorbent assays (ELISA) were performed to reveal the dynamic transcriptome profiling and the change of endogenous phytohormones upon TDZ treatment in leaf, petiole, and abscission zone (AZ). We found that TDZ induced the gene expression of ethylene biosynthesis and signal, and promoted ethylene accumulation earlier in leaf than that in AZ. While TDZ down-regulated indole-3-acetic acid (IAA) biosynthesis genes mainly in leaf and IAA signal and transport genes. Furthermore, the IAA content reduced more sharply in the leaf than that in AZ to change the auxin gradient for abscission. TDZ suppressed CTK biosynthesis genes and induced CTK metabolic genes to reduce the IPA accumulation for the reduction of ethylene sensitivity. Furthermore, TDZ regulated the gene expression of abscisic acid (ABA) biosynthesis and signal and induced ABA accumulation between 12-48 h, which could up-regulate ABA response factor genes and inhibit IAA transporter genes. Our data suggest that TDZ orchestrates metabolism and signal of ethylene, auxin, and cytokinin, and also the transport of auxin in leaf, petiole, and AZ, to control leaf abscission.
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Affiliation(s)
- Fangjun Li
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Qian Wu
- Institute of Agricultural Information, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
| | - Baopeng Liao
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Keke Yu
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Yini Huo
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Lu Meng
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
- High Latitude Crops Institute, Shanxi Agriculture University, Datong 037008, China
| | - Songman Wang
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Baomin Wang
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Mingwei Du
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
- Correspondence: ; Tel.: +86-10-6273-3049
| | - Xiaoli Tian
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
| | - Zhaohu Li
- Engineering Research Center of Plant Growth Regulator, Ministry of Education/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; (F.L.); (B.L.); (K.Y.); (Y.H.); (L.M.); (S.W.); (B.W.); (X.T.); (Z.L.)
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12
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Abstract
Drought and waterlogging seriously affect the growth of plants and are considered severe constraints on agricultural and forestry productivity; their frequency and degree have increased over time due to global climate change. The morphology, photosynthetic activity, antioxidant enzyme system and hormone levels of plants could change in response to water stress. The mechanisms of these changes are introduced in this review, along with research on key transcription factors and genes. Both drought and waterlogging stress similarly impact leaf morphology (such as wilting and crimping) and inhibit photosynthesis. The former affects the absorption and transportation mechanisms of plants, and the lack of water and nutrients inhibits the formation of chlorophyll, which leads to reduced photosynthetic capacity. Constitutive overexpression of 9-cis-epoxydioxygenase (NCED) and acetaldehyde dehydrogenase (ALDH), key enzymes in abscisic acid (ABA) biosynthesis, increases drought resistance. The latter forces leaf stomata to close in response to chemical signals, which are produced by the roots and transferred aboveground, affecting the absorption capacity of CO2, and reducing photosynthetic substrates. The root system produces adventitious roots and forms aerenchymal to adapt the stresses. Ethylene (ETH) is the main response hormone of plants to waterlogging stress, and is a member of the ERFVII subfamily, which includes response factors involved in hypoxia-induced gene expression, and responds to energy expenditure through anaerobic respiration. There are two potential adaptation mechanisms of plants (“static” or “escape”) through ETH-mediated gibberellin (GA) dynamic equilibrium to waterlogging stress in the present studies. Plant signal transduction pathways, after receiving stress stimulus signals as well as the regulatory mechanism of the subsequent synthesis of pyruvate decarboxylase (PDC) and alcohol dehydrogenase (ADH) enzymes to produce ethanol under a hypoxic environment caused by waterlogging, should be considered. This review provides a theoretical basis for plants to improve water stress tolerance and water-resistant breeding.
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13
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Abiotic stress-by-competition interactions drive hormone and nutrient changes to regulate Suaeda salsa growth. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2021.e01845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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14
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Morcillo F, Serret J, Beckers A, Collin M, Tisné S, George S, Poveda R, Louise C, Tranbarger TJ. A Non-Shedding Fruit Elaeis oleifera Palm Reveals Perturbations to Hormone Signaling, ROS Homeostasis, and Hemicellulose Metabolism. Genes (Basel) 2021; 12:1724. [PMID: 34828330 PMCID: PMC8621672 DOI: 10.3390/genes12111724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
The developmentally programmed loss of a plant organ is called abscission. This process is characterized by the ultimate separation of adjacent cells in the abscission zone (AZ). The discovery of an American oil palm (Elaeis oleifera) variant that does not shed its has allowed for the study of the mechanisms of ripe fruit abscission in this species. A comparative transcriptome analysis was performed to compare the fruit AZs of the non-shedding E. oleifera variant to an individual of the same progeny that sheds its ripe fruit normally. The study provides evidence for widespread perturbation to gene expression in the AZ of the non-shedding variant, compared to the normal fruit-shedding control, and offers insight into abscission-related functions. Beyond the genes with known or suspected roles during organ abscission or indehiscence that were identified, a list of genes with hormone-related functions, including ethylene, jasmonic acid, abscisic acid, cytokinin and salicylic acid, in addition to reactive oxygen species (ROS) metabolism, transcriptional responses and signaling pathways, was compiled. The results also allowed a comparison between the ripe fruit abscission processes of the African and American oil palm species at the molecular level and revealed commonalities with environmental stress pathways.
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Affiliation(s)
- Fabienne Morcillo
- DIADE (Diversité, Adaptation, Développement des Plantes), University of Montpellier, CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), IRD (Institut de Recherche pour le Développement), 34393 Montpellier, France; (F.M.); (J.S.); (A.B.); (M.C.)
- CIRAD, UMR (Unité Mixte de Recherche) DIADE, 34398 Montpellier, France
| | - Julien Serret
- DIADE (Diversité, Adaptation, Développement des Plantes), University of Montpellier, CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), IRD (Institut de Recherche pour le Développement), 34393 Montpellier, France; (F.M.); (J.S.); (A.B.); (M.C.)
| | - Antoine Beckers
- DIADE (Diversité, Adaptation, Développement des Plantes), University of Montpellier, CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), IRD (Institut de Recherche pour le Développement), 34393 Montpellier, France; (F.M.); (J.S.); (A.B.); (M.C.)
| | - Myriam Collin
- DIADE (Diversité, Adaptation, Développement des Plantes), University of Montpellier, CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), IRD (Institut de Recherche pour le Développement), 34393 Montpellier, France; (F.M.); (J.S.); (A.B.); (M.C.)
| | - Sebastien Tisné
- CIRAD, UMR AGAP (Amélioration Génétique et Adaptation des Plantes Méditerranéennes et Tropicales), 34398 Montpellier, France;
- AGAP, University of Montpellier, CIRAD, INRAE (Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement), Institut Agro, 34398 Montpellier, France
| | - Simon George
- MGX-Montpellier GenomiX, University of Montpellier, CNRS (Centre National de la Recherche Scientifique), INSERM (Institut National de la Santé et de la Recherche Médicale), 34094 Montpellier, France;
| | - Roberto Poveda
- DANEC, Sangolqui/Rumiñahui, Sangolquí, Pichincha 171102, Ecuador;
| | | | - Timothy John Tranbarger
- DIADE (Diversité, Adaptation, Développement des Plantes), University of Montpellier, CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), IRD (Institut de Recherche pour le Développement), 34393 Montpellier, France; (F.M.); (J.S.); (A.B.); (M.C.)
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15
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Zou J, Lü P, Jiang L, Liu K, Zhang T, Chen J, Yao Y, Cui Y, Gao J, Zhang C. Regulation of rose petal dehydration tolerance and senescence by RhNAP transcription factor via the modulation of cytokinin catabolism. MOLECULAR HORTICULTURE 2021; 1:13. [PMID: 37789474 PMCID: PMC10515265 DOI: 10.1186/s43897-021-00016-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 08/02/2021] [Indexed: 10/05/2023]
Abstract
Petals and leaves share common evolutionary origins but have different phenotypic characteristics, such as the absence of stomata in the petals of most angiosperm species. Plant NAC transcription factor, NAP, is involved in ABA responses and regulates senescence-associated genes, and especially those that affect stomatal movement. However, the regulatory mechanisms and significance of NAP action in senescing astomatous petals is unclear. A major limiting factor is failure of flower opening and accelerated senescence. Our goal is to understand the finely regulatory mechanism of dehydration tolerance and aging in rose flowers. We functionally characterized RhNAP, an AtNAP-like transcription factor gene that is induced by dehydration and aging in astomatous rose petals. Cytokinins (CKs) are known to delay petal senescence and we found that a cytokinin oxidase/dehydrogenase gene 6 (RhCKX6) shares similar expression patterns with RhNAP. Silencing of RhNAP or RhCKX6 expression in rose petals by virus induced gene silencing markedly reduced petal dehydration tolerance and delayed petal senescence. Endogenous CK levels in RhNAP- or RhCKX6-silenced petals were significantly higher than those of the control. Moreover, RhCKX6 expression was reduced in RhNAP-silenced petals. This suggests that the expression of RhCKX6 is regulated by RhNAP. Yeast one-hybrid experiments and electrophoresis mobility shift assays showed that RhNAP binds to the RhCKX6 promoter in heterologous in vivo system and in vitro, respectively. Furthermore, the expression of putative signal transduction and downstream genes of ABA-signaling pathways were also reduced due to the repression of PP2C homolog genes by RhNAP in rose petals. Taken together, our study indicates that the RhNAP/RhCKX6 interaction represents a regulatory step enhancing dehydration tolerance in young rose petals and accelerating senescence in mature petals in a stomata-independent manner.
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Affiliation(s)
- Jing Zou
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Peitao Lü
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Liwei Jiang
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Kun Liu
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Tao Zhang
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jin Chen
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yi Yao
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yusen Cui
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Junping Gao
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China
| | - Changqing Zhang
- Department of Ornamental Horticulture, China Agricultural University, Beijing, 100193, China.
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16
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Guo C, Wang Q, Li Z, Sun J, Zhang Z, Li X, Guo Y. Bioinformatics and Expression Analysis of IDA-Like Genes Reveal Their Potential Functions in Flower Abscission and Stress Response in Tobacco ( Nicotiana tabacum L.). Front Genet 2021; 12:670794. [PMID: 33986773 PMCID: PMC8110903 DOI: 10.3389/fgene.2021.670794] [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: 02/22/2021] [Accepted: 03/31/2021] [Indexed: 12/04/2022] Open
Abstract
The inflorescence deficient in abscission-like (IDL) genes have been shown to play critical roles in floral organ abscission, lateral root formation and various stress responses in Arabidopsis. The IDL gene family has been characterized in a number of plant species, while limited information is available about IDL genes of tobacco. In the current study, 15 NtIDL members were identified in the tobacco genome, and were classified into six groups together with IDL members from other species. Evolution analysis suggested that the NtIDL members form group VI might have originated from duplication events. Notably, NtIDL06 shared high similarities with AtIDA in the EPIP sequence, and its encoding gene was highly expressed in the abscission zone of flowers at late developmental stages, implying that NtIDL06 might regulate tobacco flower abscission. In addition, the results from cis-elements analysis of promoters and expression after stress treatments suggested that NtIDL members might be involved in various stress responses of tobacco. The results from this study provide information for further functional analysis related to flower abscission and stress responses of NtIDL genes.
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Affiliation(s)
- Cun Guo
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qi Wang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhiyuan Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jinhao Sun
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China.,Graduate School of Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zenglin Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Xiaoxu Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China.,Technology Center, China Tobacco Hunan Industrial Co., Ltd., Changsha, China
| | - Yongfeng Guo
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
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17
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Fooyontphanich K, Morcillo F, Joët T, Dussert S, Serret J, Collin M, Amblard P, Tangphatsornruang S, Roongsattham P, Jantasuriyarat C, Verdeil JL, Tranbarger TJ. Multi-scale comparative transcriptome analysis reveals key genes and metabolic reprogramming processes associated with oil palm fruit abscission. BMC PLANT BIOLOGY 2021; 21:92. [PMID: 33573592 PMCID: PMC7879690 DOI: 10.1186/s12870-021-02874-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Fruit abscission depends on cell separation that occurs within specialized cell layers that constitute an abscission zone (AZ). To determine the mechanisms of fleshy fruit abscission of the monocot oil palm (Elaeis guineensis Jacq.) compared with other abscission systems, we performed multi-scale comparative transcriptome analyses on fruit targeting the developing primary AZ and adjacent tissues. RESULTS Combining between-tissue developmental comparisons with exogenous ethylene treatments, and naturally occurring abscission in the field, RNAseq analysis revealed a robust core set of 168 genes with differentially regulated expression, spatially associated with the ripe fruit AZ, and temporally restricted to the abscission timing. The expression of a set of candidate genes was validated by qRT-PCR in the fruit AZ of a natural oil palm variant with blocked fruit abscission, which provides evidence for their functions during abscission. Our results substantiate the conservation of gene function between dicot dry fruit dehiscence and monocot fleshy fruit abscission. The study also revealed major metabolic transitions occur in the AZ during abscission, including key senescence marker genes and transcriptional regulators, in addition to genes involved in nutrient recycling and reallocation, alternative routes for energy supply and adaptation to oxidative stress. CONCLUSIONS The study provides the first reference transcriptome of a monocot fleshy fruit abscission zone and provides insight into the mechanisms underlying abscission by identifying key genes with functional roles and processes, including metabolic transitions, cell wall modifications, signalling, stress adaptations and transcriptional regulation, that occur during ripe fruit abscission of the monocot oil palm. The transcriptome data comprises an original reference and resource useful towards understanding the evolutionary basis of this fundamental plant process.
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Affiliation(s)
- Kim Fooyontphanich
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
- Grow A Green Co, Ltd. 556 Maha Chakraphat Rd. Namaung, Chachoengsao, Chachoengsao Province, 24000, Thailand
| | - Fabienne Morcillo
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
- CIRAD, DIADE, F-34398, Montpellier, France
| | - Thierry Joët
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
| | - Stéphane Dussert
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
| | - Julien Serret
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
| | - Myriam Collin
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
| | | | - Sithichoke Tangphatsornruang
- National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Pathum Thani, Thailand
| | - Peerapat Roongsattham
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France
- Department of Genetics, Faculty of Science, Kasetsart University Bangkhen Campus, 50 Phahonyothin Road Jatujak, Bangkok, Thailand
| | - Chatchawan Jantasuriyarat
- Department of Genetics, Faculty of Science, Kasetsart University Bangkhen Campus, 50 Phahonyothin Road Jatujak, Bangkok, Thailand
| | - Jean-Luc Verdeil
- CIRAD, UMR AGAP, F-34398, Montpellier, France
- AGAP, Univ Montpellier, CIRAD, INRAE, Institut Agro, Montpellier, France
| | - Timothy J Tranbarger
- UMR DIADE, Institut de Recherche Pour le Développement, Université de Montpellier, IRD Centre de Montpellier, 911 Avenue Agropolis BP 64501, 34394 Cedex 5, Montpellier, France.
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18
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Evaluation of Cotton ( Gossypium hirsutum L.) Leaf Abscission Sensitivity Triggered by Thidiazuron through Membership Function Value. PLANTS 2020; 10:plants10010049. [PMID: 33379380 PMCID: PMC7823538 DOI: 10.3390/plants10010049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 11/17/2022]
Abstract
Chemical defoliation is an essential agricultural practice in cotton production for mechanic harvesting. Thidiazuron (TDZ) is the active ingredient of the chemical defoliant used on cotton. So far, few studies havefocused on the method of identifying the sensitivity of cotton cultivars to TDZ. Therefore, a greenhouse soil culture experiment was performed by using two widely cultivatedupland cotton cultivars CRI 49 and CRI 12 treated with seven different concentrations (0, 100, 200, 300, 400, 500, and 1000 mg L−1) of TDZ at the seedling stage to establish a screening system. Principal component analysis and the membership function value (MFV) method was used to analyze the physiological and phenotypic characters, including abscission rate, amino acids content, net photosynthetic rate (Pn), etc. Finally, we developed a mathematical evaluation model, selected 100 mg L−1 TDZ as the optimal concentration and identified reliable characters net photosynthetic rate (Pn), stomatal conductance (Gs), and transpiration rate (Tr) to evaluate cotton leaf abscission sensitivity. These results also confirmed that CRI 12 was more sensitive to TDZ than CRI 49. This is the first time using a mathematical evaluation method to evaluate the cotton leaf abscission sensitivity triggered by TDZ at the seedling stage and the results were also confirmed in the field experiment. Furthermore, it will be valuable that MFV method is applied to stress sensitivity evaluation in other crop species under stress environment.
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Ventimilla D, Domingo C, González-Ibeas D, Talon M, Tadeo FR. Differential expression of IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like genes in Nicotiana benthamiana during corolla abscission, stem growth and water stress. BMC PLANT BIOLOGY 2020; 20:34. [PMID: 31959115 PMCID: PMC6971993 DOI: 10.1186/s12870-020-2250-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 01/14/2020] [Indexed: 05/06/2023]
Abstract
BACKGROUND IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like signaling peptides and the associated HAE (HAESA)-like family of receptor kinases were originally reported in the model plant Arabidopsis thaliana (Arabidopsis) to be deeply involved in the regulation of abscission. Actually, IDA peptides, as cell-to-cell communication elements, appear to be implicated in many developmental processes that rely on cell separation events, and even in the responses to abiotic stresses. However, the knowledge related to the molecular machinery regulating abscission in economically important crops is scarce. In this work, we determined the conservation and phylogeny of the IDA-like and HAE-like gene families in relevant species of the Solanaceae family and analyzed the expression of these genes in the allopolyploid Nicotiana benthamiana, in order to identify members involved in abscission, stem growth and in the response to drought conditions. RESULTS The phylogenetic relationships among the IDA-like members of the Solanaceae studied, grouped the two pairs of NbenIDA1 and NbenIDA2 protein homeologs with the Arabidopsis prepropeptides related to abscission. Analysis of promoter regions searching for regulatory elements showed that these two pairs of homeologs contained both hormonal and drought response elements, although NbenIDA2A lacked the hormonal regulatory elements. Expression analyses showed that the pair of NbenIDA1 homeologs were upregulated during corolla abscission. NbenIDA1 and NbenIDA2 pairs showed tissue differential expression under water stress conditions, since NbenIDA1 homeologs were highly expressed in stressed leaves while NbenIDA2 homeologs, especially NbenIDA2B, were highly expressed in stressed roots. In non-stressed active growing plants, nodes and internodes were the tissues with the highest expression levels of all members of the IDA-like family and their putative HAE-like receptors. CONCLUSION Our results suggest that the pair of NbenIDA1 homeologs are involved in the natural process of corolla abscission while both pairs of NbenIDA1 and NbenIDA2 homeologs are implicated in the response to water stress. The data also suggest that IDA peptides may be important during stem growth and development. These results provide additional evidence that the functional module formed by IDA peptides and its receptor kinases, as defined in Arabidopsis, may also be conserved in Solanaceae.
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Affiliation(s)
- Daniel Ventimilla
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113 Valencia, Spain
| | - Concha Domingo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113 Valencia, Spain
| | - Daniel González-Ibeas
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113 Valencia, Spain
| | - Manuel Talon
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113 Valencia, Spain
| | - Francisco R. Tadeo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113 Valencia, Spain
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20
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Ventimilla D, Domingo C, González-Ibeas D, Talon M, Tadeo FR. Differential expression of IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like genes in Nicotiana benthamiana during corolla abscission, stem growth and water stress. BMC PLANT BIOLOGY 2020; 20:34. [PMID: 31959115 DOI: 10.1186/s12870-020-2250-2258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 01/14/2020] [Indexed: 05/27/2023]
Abstract
BACKGROUND IDA (INFLORESCENCE DEFICIENT IN ABSCISSION)-like signaling peptides and the associated HAE (HAESA)-like family of receptor kinases were originally reported in the model plant Arabidopsis thaliana (Arabidopsis) to be deeply involved in the regulation of abscission. Actually, IDA peptides, as cell-to-cell communication elements, appear to be implicated in many developmental processes that rely on cell separation events, and even in the responses to abiotic stresses. However, the knowledge related to the molecular machinery regulating abscission in economically important crops is scarce. In this work, we determined the conservation and phylogeny of the IDA-like and HAE-like gene families in relevant species of the Solanaceae family and analyzed the expression of these genes in the allopolyploid Nicotiana benthamiana, in order to identify members involved in abscission, stem growth and in the response to drought conditions. RESULTS The phylogenetic relationships among the IDA-like members of the Solanaceae studied, grouped the two pairs of NbenIDA1 and NbenIDA2 protein homeologs with the Arabidopsis prepropeptides related to abscission. Analysis of promoter regions searching for regulatory elements showed that these two pairs of homeologs contained both hormonal and drought response elements, although NbenIDA2A lacked the hormonal regulatory elements. Expression analyses showed that the pair of NbenIDA1 homeologs were upregulated during corolla abscission. NbenIDA1 and NbenIDA2 pairs showed tissue differential expression under water stress conditions, since NbenIDA1 homeologs were highly expressed in stressed leaves while NbenIDA2 homeologs, especially NbenIDA2B, were highly expressed in stressed roots. In non-stressed active growing plants, nodes and internodes were the tissues with the highest expression levels of all members of the IDA-like family and their putative HAE-like receptors. CONCLUSION Our results suggest that the pair of NbenIDA1 homeologs are involved in the natural process of corolla abscission while both pairs of NbenIDA1 and NbenIDA2 homeologs are implicated in the response to water stress. The data also suggest that IDA peptides may be important during stem growth and development. These results provide additional evidence that the functional module formed by IDA peptides and its receptor kinases, as defined in Arabidopsis, may also be conserved in Solanaceae.
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Affiliation(s)
- Daniel Ventimilla
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113, Valencia, Spain
| | - Concha Domingo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113, Valencia, Spain
| | - Daniel González-Ibeas
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113, Valencia, Spain
| | - Manuel Talon
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113, Valencia, Spain
| | - Francisco R Tadeo
- Centro de Genómica, Instituto Valenciano de Investigaciones Agrarias (IVIA), CV-315, Km 10,7 Moncada, E-46113, Valencia, Spain.
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Solomon CU, Drea S. Besides and Beyond Flowering: Other roles of EuAP2 Genes in Plant Development. Genes (Basel) 2019; 10:genes10120994. [PMID: 31805740 PMCID: PMC6947164 DOI: 10.3390/genes10120994] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/27/2019] [Accepted: 11/27/2019] [Indexed: 12/18/2022] Open
Abstract
EuAP2 genes are well-known for their role in flower development, a legacy of the founding member of this subfamily of transcription factors, whose mutants lacked petals in Arabidopsis. However, studies of euAP2 genes in several species have accumulated evidence highlighting the diverse roles of euAP2 genes in other aspects of plant development. Here, we emphasize other developmental roles of euAP2 genes in various species and suggest a shift from regarding euAP2 genes as just flowering genes to consider the global role they may be playing in plant development. We hypothesize that their almost universal expression profile and pleiotropic effects of their mutation suggest their involvement in fundamental plant development processes.
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Affiliation(s)
- Charles U. Solomon
- Department of Genetics and Genome Biology, University of Leicester, Leicester LE1 7RH, UK
- Department of Plant Science and Biotechnology, Abia State University, PMB 2000, Uturu 441107, Nigeria
- Correspondence:
| | - Sinéad Drea
- Department of Genetics and Genome Biology, University of Leicester, Leicester LE1 7RH, UK
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Shi CL, Alling RM, Hammerstad M, Aalen RB. Control of Organ Abscission and Other Cell Separation Processes by Evolutionary Conserved Peptide Signaling. PLANTS 2019; 8:plants8070225. [PMID: 31311120 PMCID: PMC6681299 DOI: 10.3390/plants8070225] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 01/10/2023]
Abstract
Plants both generate and shed organs throughout their lifetime. Cell separation is in function during opening of anthers to release pollen; floral organs are detached after pollination when they have served their purpose; unfertilized flowers are shed; fruits and seeds are abscised from the mother plant to secure the propagation of new generations. Organ abscission takes place in specialized abscission zone (AZ) cells where the middle lamella between adjacent cell files is broken down. The plant hormone ethylene has a well-documented promoting effect on abscission, but mutation in ethylene receptor genes in Arabidopsis thaliana only delays the abscission process. Microarray and RNA sequencing have identified a large number of genes differentially expressed in the AZs, especially genes encoding enzymes involved in cell wall remodelling and disassembly. Mutations in such genes rarely give a phenotype, most likely due to functional redundancy. In contrast, mutation in the INFLORESCENCE DEFICIENT IN ABSCISSION (IDA) blocks floral organ abscission in Arabidopsis. IDA encodes a small peptide that signals through the leucine-rich repeat receptor-like kinases HAESA (HAE) and HAE-LIKE2 (HSL2) to control floral organ abscission and facilitate lateral root emergence. Untimely abscission is a severe problem in many crops, and in a more applied perspective, it is of interest to investigate whether IDA-HAE/HSL2 is involved in other cell separation processes and other species. Genes encoding IDA and HSL2 orthologues have been identified in all orders of flowering plants. Angiosperms have had enormous success, with species adapted to all kinds of environments, adaptations which include variation with respect to which organs they shed. Here we review, from an evolutionary perspective, the properties of the IDA-HAE/HSL2 signaling module and the evidence for its hypothesized involvement in various cell separation processes in angiosperms.
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Affiliation(s)
- Chun-Lin Shi
- Section for Genetics and Evolutionary Biology, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
| | - Renate Marie Alling
- Section for Genetics and Evolutionary Biology, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
| | - Marta Hammerstad
- Section for Genetics and Evolutionary Biology, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway
| | - Reidunn B Aalen
- Section for Genetics and Evolutionary Biology, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway.
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