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Gharib A, Marquez C, Meseguer-Beltran M, Sanchez-Sarasua S, Sanchez-Perez AM. Abscisic acid, an evolutionary conserved hormone: Biosynthesis, therapeutic and diagnostic applications in mammals. Biochem Pharmacol 2024; 229:116521. [PMID: 39251140 DOI: 10.1016/j.bcp.2024.116521] [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: 07/09/2024] [Revised: 08/26/2024] [Accepted: 09/05/2024] [Indexed: 09/11/2024]
Abstract
Abscisic acid (ABA), a phytohormone traditionally recognized for its role in plant stress responses, has recently emerged as a significant player in mammalian defense mechanisms. Like plants, various mammalian cell types synthesize ABA in response to specific health challenges, although the precise pathways remain not fully elucidated. ABA is associated with the regulation of inflammation and insulin signaling, prompting extensive research into its potential as a therapeutic agent for various diseases. ABA exerts its effects through its receptors, particularly PPAR-γ and LANCL-2, which serve as signaling hubs regulating numerous pathways. Through these interactions, ABA profoundly impacts mammalian health, and new ABA targets continue to be identified. Numerous studies in animal models demonstrate ABA's benefit in managing conditions such as neurological and psychiatric disorders, cancer, and malaria infections, all of which involve significant inflammatory dysregulation. In this manuscript we review the studies covering ABA synthesis and release in cell cultures, the signaling pathways regulated by ABA, and how these impact health in preclinical models. Furthermore, we highlight recent research suggesting that measuring ABA levels in human body fluids could serve as a useful biomarker for pathological conditions, providing insights into disease progression and treatment efficacy. This comprehensive review outlines the current understanding of ABA in mammalian pathophysiology, identifying gaps in knowledge, particularly concerning ABA biosynthesis and metabolism in mammals. In addition, this study emphasizes the need for clinical trials to validate the effectiveness of ABA-based therapies and its reliability as a biomarker for various diseases.
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Affiliation(s)
- Amir Gharib
- Neurobiotecnologia Group, Institute of Advanced Materiales (INAM), Universitat Jaume I, Avda. de Vicent Sos Baynat, S/n, 12071 Castelló de La Plana, Spain; Department of Laboratory Sciences, Borujerd Branch, Islamic Azad University, Borujerd, Iran
| | - Carlee Marquez
- Neurobiotecnologia Group, Institute of Advanced Materiales (INAM), Universitat Jaume I, Avda. de Vicent Sos Baynat, S/n, 12071 Castelló de La Plana, Spain
| | - Maria Meseguer-Beltran
- Neurobiotecnologia Group, Institute of Advanced Materiales (INAM), Universitat Jaume I, Avda. de Vicent Sos Baynat, S/n, 12071 Castelló de La Plana, Spain
| | - Sandra Sanchez-Sarasua
- Neurobiotecnologia Group, Institute of Advanced Materiales (INAM), Universitat Jaume I, Avda. de Vicent Sos Baynat, S/n, 12071 Castelló de La Plana, Spain; CNRS UMR 5293, Institut Des Maladies Neurodégénératives, Centre Paul Broca-Nouvelle Aquitaine, University of Bordeaux, Bordeaux, France.
| | - Ana M Sanchez-Perez
- Neurobiotecnologia Group, Institute of Advanced Materiales (INAM), Universitat Jaume I, Avda. de Vicent Sos Baynat, S/n, 12071 Castelló de La Plana, Spain.
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de Oliveira IP, Schaaf C, de Setta N. Drought Responses in Poaceae: Exploring the Core Components of the ABA Signaling Pathway in Setaria italica and Setaria viridis. PLANTS (BASEL, SWITZERLAND) 2024; 13:1451. [PMID: 38891260 PMCID: PMC11174756 DOI: 10.3390/plants13111451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/14/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024]
Abstract
Drought severely impacts plant development and reproduction, reducing biomass and seed number, and altering flowering patterns. Drought-tolerant Setaria italica and Setaria viridis species have emerged as prominent model species for investigating water deficit responses in the Poaceae family, the most important source of food and biofuel biomass worldwide. In higher plants, abscisic acid (ABA) regulates environmental stress responses, and its signaling entails interactions between PYR/PYL/RCAR receptors and clade A PP2C phosphatases, which in turn modulate SnRK2 kinases via reversible phosphorylation to activate ABA-responsive genes. To compare the diversity of PYR/PYL/RCAR, PP2C, and SnRK2 between S. italica and S. viridis, and their involvement in water deficit responses, we examined gene and regulatory region structures, investigated orthology relationships, and analyzed their gene expression patterns under water stress via a meta-analysis approach. Results showed that coding and regulatory sequences of PYR/PYL/RCARs, PP2Cs, and SnRK2s are highly conserved between Setaria spp., allowing us to propose pairs of orthologous genes for all the loci identified. Phylogenetic relationships indicate which clades of Setaria spp. sequences are homologous to the functionally well-characterized Arabidopsis thaliana PYR/PYL/RCAR, PP2C, and SnRK2 genes. Gene expression analysis showed a general downregulation of PYL genes, contrasting with upregulation of PP2C genes, and variable expression modulation of SnRK2 genes under drought stress. This complex network implies that ABA core signaling is a diverse and multifaceted process. Through our analysis, we identified promising candidate genes for further functional characterization, with great potential as targets for drought resistance studies, ultimately leading to advances in Poaceae biology and crop-breeding strategies.
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Affiliation(s)
| | | | - Nathalia de Setta
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, São Bernardo do Campo 09606-045, SP, Brazil; (I.P.d.O.); (C.S.)
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Jing F, Shi S, Kang W, Guan J, Lu B, Wu B, Wang W. The Physiological Basis of Alfalfa Plant Height Establishment. PLANTS (BASEL, SWITZERLAND) 2024; 13:679. [PMID: 38475525 DOI: 10.3390/plants13050679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/14/2024]
Abstract
Plant height plays an important role in crop yield, product quality, and cultivation management. However, the physiological mechanisms that regulate the establishment of plant height in alfalfa plants remain unclear. Herein, we measured plant height traits, leaf characteristics, photosynthetic physiology, cell wall composition, and endogenous hormone contents of tall- and short-stalked alfalfa materials at different reproductive periods. We analyzed the physiology responsible for differences in plant height. The results demonstrated that the number of internodes in tall- and short-stalked alfalfa materials tended to converge with the advancement of the fertility period. Meanwhile, the average internode length (IL) of tall-stalked materials was significantly higher than that of short-stalked materials at different fertility periods, with internode length identified as the main trait determining the differences in alfalfa plant height. Leaf characteristics, which are closely related to photosynthetic capacity, are crucial energy sources supporting the expression of plant height traits, and we found that an increase in the number of leaves contributed to a proportional increase in plant height. Additionally, a significant positive correlation was observed between plant height and leaf dry weight per plant during the branching and early flowering stages of alfalfa. The leaves of alfalfa affect plant height through photosynthesis, with the budding stage identified as the key period for efficient light energy utilization. Plant height at the budding stage showed a significant positive correlation with soluble sugar (SS) content and a significant negative correlation with intercellular CO2 concentration. Moreover, we found that alfalfa plant height was significantly correlated with the contents of indole-3-acetic acid in stem tips (SIAA), gibberellin A3 in leaves (LGA3), zeatin in stem tips (SZT), and abscisic acid in leaves (LABA). Further investigation revealed that SS, SIAA, and LGA3 contents were important physiological indicators affecting alfalfa plant height. This study provides a theoretical basis for understanding the formation of alfalfa plant height traits and for genetic improvement studies.
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Affiliation(s)
- Fang Jing
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Shangli Shi
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Wenjuan Kang
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Jian Guan
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Baofu Lu
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Bei Wu
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Wenjuan Wang
- Key Laboratory of Grassland Ecosystem of Ministry of Education, College of Pratacultural Science, Gansu Agricultural University, Lanzhou 730070, China
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Muthego D, Moloi SJ, Brown AP, Goche T, Chivasa S, Ngara R. Exogenous abscisic acid treatment regulates protein secretion in sorghum cell suspension cultures. PLANT SIGNALING & BEHAVIOR 2023; 18:2291618. [PMID: 38100609 PMCID: PMC10730228 DOI: 10.1080/15592324.2023.2291618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/28/2023] [Indexed: 12/17/2023]
Abstract
Drought stress adversely affects plant growth, often leading to total crop failure. Upon sensing soil water deficits, plants switch on biosynthesis of abscisic acid (ABA), a stress hormone for drought adaptation. Here, we used exogenous ABA application to dark-grown sorghum cell suspension cultures as an experimental system to understand how a drought-tolerant crop responds to ABA. We evaluated intracellular and secreted proteins using isobaric tags for relative and absolute quantification. While the abundance of only ~ 7% (46 proteins) intracellular proteins changed in response to ABA, ~32% (82 proteins) of secreted proteins identified in this study were ABA responsive. This shows that the extracellular matrix is disproportionately targeted and suggests it plays a vital role in sorghum adaptation to drought. Extracellular proteins responsive to ABA were predominantly defense/detoxification and cell wall-modifying enzymes. We confirmed that sorghum plants exposed to drought stress activate genes encoding the same proteins identified in the in vitro cell culture system with ABA. Our results suggest that ABA activates defense and cell wall remodeling systems during stress response. This could underpin the success of sorghum adaptation to drought stress.
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Affiliation(s)
- Dakalo Muthego
- Department of Plant Sciences, University of the Free State, Phuthaditjhaba, South Africa
| | - Sellwane J. Moloi
- Department of Plant Sciences, University of the Free State, Phuthaditjhaba, South Africa
| | | | - Tatenda Goche
- Department of Biosciences, Durham University, Durham, UK
- Department of Crop Science, Bindura University of Science Education, Bindura, Zimbabwe
| | | | - Rudo Ngara
- Department of Plant Sciences, University of the Free State, Phuthaditjhaba, South Africa
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Yao P, Zhang C, Zhang D, Qin T, Xie X, Liu Y, Liu Z, Bai J, Bi Z, Cui J, Liang J, Sun C. Characterization and Identification of Drought-Responsive ABA-Aldehyde Oxidase (AAO) Genes in Potato ( Solanum tuberosum L.). PLANTS (BASEL, SWITZERLAND) 2023; 12:3809. [PMID: 38005706 PMCID: PMC10674669 DOI: 10.3390/plants12223809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/31/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023]
Abstract
Abscisic acid (ABA) is an important stress hormone that affects plants' tolerance to stress. Changes in the content of abscisic can have an impact on plant responses to abiotic stress. The abscisic acid aldehyde oxidase (AAO) plays a crucial role in the final step in the synthesis of abscisic acid; therefore, understanding the function of the AAO gene family is of great significance for insight into plants' response to abiotic stresses. In this study, Solanum tuberosum AAO (StAAO) members were exhaustively explored using genome databases, and nine StAAOs were identified. Chromosomal location analysis indicated that StAAO genes mapped to 4 of the 14 potato chromosomes. Further analyses of gene structure and motif composition showed that members of the specific StAAO subfamily showed relatively conserved characteristics. Phylogenetic relationship analysis indicated that StAAOs proteins were divided into three major clades. Promoter analysis showed that most StAAO promoters contained cis-elements related to abiotic stress response and plant hormones. The results of tissue-specific expression analysis indicated that StAAO4 was predominantly expressed in the roots. Analysis of transcriptome data revealed that StAAO2/4/6 genes responded significantly to drought treatments. Moreover, further qRT-PCR analysis results indicated that StAAO2/4/6 not only significantly responded to drought stress but also to various phytohormone (ABA, SA, and MeJA) and abiotic stresses (salt and low temperature), albeit with different expression patterns. In summary, our study provides comprehensive insights into the sequence characteristics, structural properties, evolutionary relationships, and expression patterns of the StAAO gene family. These findings lay the foundation for a deeper understanding of the StAAO gene family and offer a potential genetic resource for breeding drought-resistant potato varieties.
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Affiliation(s)
- Panfeng Yao
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
| | - Chunli Zhang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Dan Zhang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
| | - Tianyuan Qin
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiaofei Xie
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuhui Liu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
| | - Zhen Liu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
| | - Jiangping Bai
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhenzhen Bi
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Junmei Cui
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
| | - Jingwen Liang
- Planning and Finance Department, Gansu Agricultural University, Lanzhou 730070, China;
| | - Chao Sun
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (C.Z.); (D.Z.); (T.Q.); (X.X.); (Y.L.); (Z.L.); (J.B.); (Z.B.); (J.C.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
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Tong N, Shu Q, Wang B, Peng L, Liu Z. Histology, physiology, and transcriptomic and metabolomic profiling reveal the developmental dynamics of annual shoots in tree peonies ( Paeonia suffruticosa Andr.). HORTICULTURE RESEARCH 2023; 10:uhad152. [PMID: 37701456 PMCID: PMC10493643 DOI: 10.1093/hr/uhad152] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 07/23/2023] [Indexed: 09/14/2023]
Abstract
The development of tree peony annual shoots is characterized by "withering", which is related to whether there are bud points in the leaf axillaries of annual shoots. However, the mechanism of "withering" in tree peony is still unclear. In this study, Paeonia ostii 'Fengdan' and P. suffruticosa 'Luoyanghong' were used to investigate dynamic changes of annual shoots through anatomy, physiology, transcriptome, and metabolome. The results demonstrated that the developmental dynamics of annual shoots of the two cultivars were comparable. The withering degree of P. suffruticosa 'Luoyanghong' was higher than that of P. ostii 'Fengdan', and their upper internodes of annual flowering shoots had a lower degree of lignin deposition, cellulose, C/N ratio, showing no obvious sclerenchyma, than the bottom ones and the whole internodes of vegetative shoot, which resulted in the "withering" of upper internodes. A total of 36 phytohormone metabolites were detected, of which 33 and 31 were detected in P. ostii 'Fengdan' and P. suffruticosa 'Luoyanghong', respectively. In addition, 302 and 240 differentially expressed genes related to lignin biosynthesis, carbon and nitrogen metabolism, plant hormone signal transduction, and zeatin biosynthesis were screened from the two cultivars. Furtherly, 36 structural genes and 40 transcription factors associated with the development of annual shoots were highly co-expressed, and eight hub genes involved in this developmental process were identified. Consequently, this study explained the developmental dynamic on the varied annual shoots through multi-omics, providing a theoretical foundation for germplasm innovation and the mechanized harvesting of tree peony annual shoots.
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Affiliation(s)
- Ningning Tong
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingyan Shu
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Baichen Wang
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Liping Peng
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Zheng'an Liu
- State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
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Korek M, Marzec M. Strigolactones and abscisic acid interactions affect plant development and response to abiotic stresses. BMC PLANT BIOLOGY 2023; 23:314. [PMID: 37308831 DOI: 10.1186/s12870-023-04332-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
Strigolactones (SL) are the youngest group of plant hormones responsible for shaping plant architecture, especially the branching of shoots. However, recent studies provided new insights into the functioning of SL, confirming their participation in regulating the plant response to various types of abiotic stresses, including water deficit, soil salinity and osmotic stress. On the other hand, abscisic acid (ABA), commonly referred as a stress hormone, is the molecule that crucially controls the plant response to adverse environmental conditions. Since the SL and ABA share a common precursor in their biosynthetic pathways, the interaction between both phytohormones has been largely studied in the literature. Under optimal growth conditions, the balance between ABA and SL content is maintained to ensure proper plant development. At the same time, the water deficit tends to inhibit SL accumulation in the roots, which serves as a sensing mechanism for drought, and empowers the ABA production, which is necessary for plant defense responses. The SL-ABA cross-talk at the signaling level, especially regarding the closing of the stomata under drought conditions, still remains poorly understood. Enhanced SL content in shoots is likely to stimulate the plant sensitivity to ABA, thus reducing the stomatal conductance and improving the plant survival rate. Besides, it was proposed that SL might promote the closing of stomata in an ABA-independent way. Here, we summarize the current knowledge regarding the SL and ABA interactions by providing new insights into the function, perception and regulation of both phytohormones during abiotic stress response of plants, as well as revealing the gaps in the current knowledge of SL-ABA cross-talk.
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Affiliation(s)
- Magdalena Korek
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellonska 28, Katowice, 40-032, Poland.
| | - Marek Marzec
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, Jagiellonska 28, Katowice, 40-032, Poland
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Seng S, Ponce GE, Andreas P, Kisiala A, De Clerck-Floate R, Miller DG, Chen MS, Price PW, Tooker JF, Emery RJN, Connor EF. Abscisic Acid: A Potential Secreted Effector Synthesized by Phytophagous Insects for Host-Plant Manipulation. INSECTS 2023; 14:489. [PMID: 37367305 PMCID: PMC10299484 DOI: 10.3390/insects14060489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/18/2023] [Accepted: 05/18/2023] [Indexed: 06/28/2023]
Abstract
Abscisic acid (ABA) is an isoprenoid-derived plant signaling molecule involved in a wide variety of plant processes, including facets of growth and development as well as responses to abiotic and biotic stress. ABA had previously been reported in a wide variety of animals, including insects and humans. We used high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-(ESI)-MS/MS) to examine concentrations of ABA in 17 species of phytophagous insects, including gall- and non-gall-inducing species from all insect orders with species known to induce plant galls: Thysanoptera, Hemiptera, Lepidoptera, Coleoptera, Diptera, and Hymenoptera. We found ABA in insect species in all six orders, in both gall-inducing and non-gall-inducing species, with no tendency for gall-inducing insects to have higher concentrations. The concentrations of ABA in insects often markedly exceeded those typically found in plants, suggesting it is highly improbable that insects obtain all their ABA from their host plant via consumption and sequestration. As a follow-up, we used immunohistochemistry to determine that ABA localizes to the salivary glands in the larvae of the gall-inducing Eurosta solidaginis (Diptera: Tephritidae). The high concentrations of ABA, combined with its localization to salivary glands, suggest that insects are synthesizing and secreting ABA to manipulate their host plants. The pervasiveness of ABA among both gall- and non-gall-inducing insects and our current knowledge of the role of ABA in plant processes suggest that insects are using ABA to manipulate source-sink mechanisms of nutrient allocation or to suppress host-plant defenses. ABA joins the triumvirate of phytohormones, along with cytokinins (CKs) and indole-3-acetic acid (IAA), that are abundant, widespread, and localized to glandular organs in insects and used to manipulate host plants.
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Affiliation(s)
- Stephannie Seng
- Department of Biology, San Francisco State University, San Francisco, CA 94132, USA;
| | - Gabriela E. Ponce
- Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA; (G.E.P.); (J.F.T.)
| | - Peter Andreas
- Department of Biology, Trent University, Peterborough, ON K9J 7B8, Canada; (P.A.); (A.K.); (R.J.N.E.)
| | - Anna Kisiala
- Department of Biology, Trent University, Peterborough, ON K9J 7B8, Canada; (P.A.); (A.K.); (R.J.N.E.)
| | | | - Donald G. Miller
- Department of Biological Sciences, California State University, Chico, CA 95929, USA;
| | - Ming-Shun Chen
- USDA-ARS and Department of Entomology, Kansas State University, Manhattan, KS 66506, USA;
| | - Peter W. Price
- Department of Ecology and Evolutionary Biology, Northern Arizona University, Flagstaff, AZ 86001, USA;
| | - John F. Tooker
- Department of Entomology, The Pennsylvania State University, University Park, PA 16802, USA; (G.E.P.); (J.F.T.)
| | - R. J. Neil Emery
- Department of Biology, Trent University, Peterborough, ON K9J 7B8, Canada; (P.A.); (A.K.); (R.J.N.E.)
| | - Edward F. Connor
- Department of Biology, San Francisco State University, San Francisco, CA 94132, USA;
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Spinelli S, Guida L, Vigliarolo T, Passalacqua M, Begani G, Magnone M, Sturla L, Benzi A, Ameri P, Lazzarini E, Bearzi C, Rizzi R, Zocchi E. The ABA-LANCL1/2 Hormone-Receptors System Protects H9c2 Cardiomyocytes from Hypoxia-Induced Mitochondrial Injury via an AMPK- and NO-Mediated Mechanism. Cells 2022; 11:cells11182888. [PMID: 36139463 PMCID: PMC9496903 DOI: 10.3390/cells11182888] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Abscisic acid (ABA) regulates plant responses to stress, partly via NO. In mammals, ABA stimulates NO production by innate immune cells and keratinocytes, glucose uptake and mitochondrial respiration by skeletal myocytes and improves blood glucose homeostasis through its receptors LANCL1 and LANCL2. We hypothesized a role for the ABA-LANCL1/2 system in cardiomyocyte protection from hypoxia via NO. The effect of ABA and of the silencing or overexpression of LANCL1 and LANCL2 were investigated in H9c2 rat cardiomyoblasts under normoxia or hypoxia/reoxygenation. In H9c2, hypoxia induced ABA release, and ABA stimulated NO production. ABA increased the survival of H9c2 to hypoxia, and L-NAME, an inhibitor of NO synthase (NOS), abrogated this effect. ABA also increased glucose uptake and NADPH levels and increased phosphorylation of Akt, AMPK and eNOS. Overexpression or silencing of LANCL1/2 significantly increased or decreased, respectively, transcription, expression and phosphorylation of AMPK, Akt and eNOS; transcription of NAMPT, Sirt1 and the arginine transporter. The mitochondrial proton gradient and cell vitality increased in LANCL1/2-overexpressing vs. -silenced cells after hypoxia/reoxygenation, and L-NAME abrogated this difference. These results implicate the ABA-LANCL1/2 hormone-receptor system in NO-mediated cardiomyocyte protection against hypoxia.
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Affiliation(s)
- Sonia Spinelli
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Lucrezia Guida
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Tiziana Vigliarolo
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Mario Passalacqua
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Giulia Begani
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Mirko Magnone
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Laura Sturla
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Andrea Benzi
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
| | - Pietro Ameri
- Laboratory of Cardiovascular Biology, Department of Internal Medicine, University of Genova, Viale Benedetto XV 6, 16132 Genova, Italy
| | - Edoardo Lazzarini
- Cardiovascular Theranostics, Istituto Cardiocentro Ticino, Laboratories for Translational Research, Ente Ospedaliero Cantonale, Via Tesserete 48, 6500 Bellinzona, Switzerland
| | - Claudia Bearzi
- Institute of Biomedical Technologies, National Research Council of Italy (ITB-CNR), Via Fratelli Cervi 93, 20054 Milan, Italy
- Fondazione Istituto Nazionale di Genetica Molecolare, Via F. Sforza 35, 20122 Milan, Italy
| | - Roberto Rizzi
- Fondazione Istituto Nazionale di Genetica Molecolare, Via F. Sforza 35, 20122 Milan, Italy
- Department of Medical Surgical Sciences and Biotechnologies, Sapienza University of Rome, C.so della Repubblica 79, 04100 Latina, Italy
| | - Elena Zocchi
- Department of Experimental Medicine, Section of Biochemistry, University of Genova, Viale Benedetto XV 1, 16132 Genova, Italy
- Correspondence:
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10
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Muema JM, Bargul JL, Obonyo MA, Njeru SN, Matoke-Muhia D, Mutunga JM. Contemporary exploitation of natural products for arthropod-borne pathogen transmission-blocking interventions. Parasit Vectors 2022; 15:298. [PMID: 36002857 PMCID: PMC9404607 DOI: 10.1186/s13071-022-05367-8] [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: 02/24/2022] [Accepted: 06/16/2022] [Indexed: 11/26/2022] Open
Abstract
An integrated approach to innovatively counter the transmission of various arthropod-borne diseases to humans would benefit from strategies that sustainably limit onward passage of infective life cycle stages of pathogens and parasites to the insect vectors and vice versa. Aiming to accelerate the impetus towards a disease-free world amid the challenges posed by climate change, discovery, mindful exploitation and integration of active natural products in design of pathogen transmission-blocking interventions is of high priority. Herein, we provide a review of natural compounds endowed with blockade potential against transmissible forms of human pathogens reported in the last 2 decades from 2000 to 2021. Finally, we propose various translational strategies that can exploit these pathogen transmission-blocking natural products into design of novel and sustainable disease control interventions. In summary, tapping these compounds will potentially aid in integrated combat mission to reduce disease transmission trends.
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Affiliation(s)
- Jackson M Muema
- Department of Biochemistry, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000, Nairobi, 00200, Kenya.
| | - Joel L Bargul
- Department of Biochemistry, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000, Nairobi, 00200, Kenya.,International Centre of Insect Physiology and Ecology (Icipe), P.O. Box 30772, Nairobi, 00100, Kenya
| | - Meshack A Obonyo
- Department of Biochemistry and Molecular Biology, Egerton University, P.O. Box 536, Egerton, 20115, Kenya
| | - Sospeter N Njeru
- Centre for Traditional Medicine and Drug Research (CTMDR), Kenya Medical Research Institute (KEMRI), P.O. Box 54840, Nairobi, 00200, Kenya
| | - Damaris Matoke-Muhia
- Centre for Biotechnology Research Development (CBRD), Kenya Medical Research Institute (KEMRI), P.O. Box 54840, Nairobi, 00200, Kenya
| | - James M Mutunga
- Department of Biological Sciences, Mount Kenya University (MKU), P.O. Box 54, Thika, 01000, Kenya.,School of Engineering Design, Technology and Professional Programs, Pennsylvania State University, University Park, PA, 16802, USA
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11
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Saxena S, Gautam S. Molecular events confirming antimutagenicity to abscisic acid derived from a floral honey establishing its functional relevance. Heliyon 2022; 8:e09945. [PMID: 35874072 PMCID: PMC9305366 DOI: 10.1016/j.heliyon.2022.e09945] [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: 01/04/2022] [Revised: 02/25/2022] [Accepted: 07/08/2022] [Indexed: 11/30/2022] Open
Abstract
Natural dietary products of health promoting and disease preventive functional relevance are gaining significant prominence. Current investigation was aimed to decipher the underlying molecular mechanism responsible for the antimutagenic action contributing to functional relevance of floral honey (‘Pongammia pinnata’, Karanj honey) derived abscisic acid (ABA) against ethyl methanesulfonate (EMS) induced mutagenesis. Differential expression of proteins under different treatment conditions was ascertained by 2D gel electrophoresis. Selectively up-regulated characterized using MALDI-TOF MS/MS were identified as polyribonucleotide nucleotidyl transferse (PNPase), LPS-assembly lipoprotein (LptE), Outer membrane Usher protein (HtrE), ATP-dependent DNA helicase (RecG), and Phosphomethyl pyrimidine synthase (ThiC). Antimutagenicity exerted by ABA against EMS was ∼78% in wild type E. coli MG1655 strain however, in E. coli MG1655 ΔthiC, ΔpnpA, ΔrecG, and ΔhtrE this activity was found to be ∼60, 10, 9 and 10%, respectively. Proteomic analysis and antimutagenicity studies using E. coli single gene knockout strains thus indicated about the possible role of thiC, htrE, lptE, recG and pnp in observed antimutagenicity. Cyclic voltametry as well as competition kinetics through pulse radiolysis confirmed lack of antioxidant capacity in abscisic acid apparently ruling out the possibility of scavenging of electrophilic intermediates generated by ethyl methanesulfonate. It is proposed that ABA is exerting antimutagenicity through its involvement at the cellular level leading to physiological adaptation, strengthening of cell wall proteins and up-regulation of the repair proteins. This study provides a novel dimension to the functional role of abscisic acid from its nutraceutical perspective. Molecular mechanism of purified abscisic acid from Pongammia pinnata honey studied. Differential protein expression observed against induced mutagenesis. Gene knock-out strains validated functionality of up-regulated proteins. Pulse radiolysis and cyclic voltametry confirmed no role of antioxidant activity. Abscisic acid is acting at cellular level in conferring protection against mutagen.
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Affiliation(s)
- Sudhanshu Saxena
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Satyendra Gautam
- Food Technology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
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12
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Ye W, Bustos‐Segura C, Degen T, Erb M, Turlings TCJ. Belowground and aboveground herbivory differentially affect the transcriptome in roots and shoots of maize. PLANT DIRECT 2022; 6:e426. [PMID: 35898557 PMCID: PMC9307387 DOI: 10.1002/pld3.426] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 06/20/2022] [Indexed: 05/13/2023]
Abstract
Plants recognize and respond to feeding by herbivorous insects by upregulating their local and systemic defenses. While defense induction by aboveground herbivores has been well studied, far less is known about local and systemic defense responses against attacks by belowground herbivores. Here, we investigated and compared the responses of the maize transcriptome to belowground and aboveground mechanical damage and infestation by two well-adapted herbivores: the soil-dwelling western corn rootworm Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) and the leaf-chewing fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae). In responses to both herbivores, maize plants were found to alter local transcription of genes involved in phytohormone signaling, primary and secondary metabolism. Induction by real herbivore damage was considerably stronger and modified the expression of more genes than mechanical damage. Feeding by the corn rootworm had a strong impact on the shoot transcriptome, including the activation of genes involved in defense and development. By contrast, feeding by the fall armyworm induced only few transcriptional changes in the roots. In conclusion, feeding by a leaf chewer and a root feeder differentially affects the local and systemic defense of maize plants. Besides revealing clear differences in how maize plants respond to feeding by these specialized herbivores, this study reveals several novel genes that may play key roles in plant-insect interactions and thus sets the stage for in depth research into the mechanism that can be exploited for improved crop protection. Significance statement Extensive transcriptomic analyses revealed a clear distinction between the gene expression profiles in maize plants upon shoot and root attack, locally as well as distantly from the attacked tissue. This provides detailed insights into the specificity of orchestrated plant defense responses, and the dataset offers a molecular resource for further genetic studies on maize resistance to herbivores and paves the way for novel strategies to enhance maize resistance to pests.
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Affiliation(s)
- Wenfeng Ye
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of BiologyUniversity of NeuchâtelNeuchâtelSwitzerland
| | - Carlos Bustos‐Segura
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of BiologyUniversity of NeuchâtelNeuchâtelSwitzerland
| | - Thomas Degen
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of BiologyUniversity of NeuchâtelNeuchâtelSwitzerland
| | - Matthias Erb
- Institute of Plant SciencesUniversity of BernBernSwitzerland
| | - Ted C. J. Turlings
- Laboratory of Fundamental and Applied Research in Chemical Ecology, Institute of BiologyUniversity of NeuchâtelNeuchâtelSwitzerland
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13
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Wang KL, Zhang Y, Zhang HM, Lin XC, Xia R, Song L, Wu AM. MicroRNAs play important roles in regulating the rapid growth of the Phyllostachys edulis culm internode. THE NEW PHYTOLOGIST 2021; 231:2215-2230. [PMID: 34101835 DOI: 10.1111/nph.17542] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 05/29/2021] [Indexed: 06/12/2023]
Abstract
Moso bamboo (Phyllostachys edulis) is a fast-growing species with uneven growth and lignification from lower to upper segments within one internode. MicroRNAs (miRNAs) play a vital role in post-transcriptional regulation in plants. However, how miRNAs regulate fast growth in bamboo internodes is poorly understood. In this study, one moso bamboo internode was divided during early rapid growth into four segments called F4 (bottom) to F1 (upper) and these were then analysed for transcriptomes, miRNAs and degradomes. The F4 segment had a higher number of actively dividing cells as well as a higher content of auxin (IAA), cytokinin (CK) and gibberellin (GA) compared with the F1 segment. RNA-seq analysis showed DNA replication and cell division-associated genes highly expressed in F4 rather than in F1. In total, 63 miRNAs (DEMs) were identified as differentially expressed between F4 and F1. The degradome and the transcriptome indicated that many downstream transcription factors and hormonal responses genes were modulated by DEMs. Several miR-target interactions were further validated by tobacco co-infiltration. Our findings give new insights into miRNA-mediated regulatory pathways in bamboo, and will contribute to a comprehensive understanding of the molecular mechanisms governing rapid growth.
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Affiliation(s)
- Kai-Li Wang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architectures, South China Agricultural University, Guangzhou, 510642, China
| | - Yuanyuan Zhang
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architectures, South China Agricultural University, Guangzhou, 510642, China
| | - Heng-Mu Zhang
- Institute of Virology and Biotechnology, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Xin-Chun Lin
- The State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin'an, 311300, China
| | - Rui Xia
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China
| | - Lili Song
- The State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A&F University, Lin'an, 311300, China
| | - Ai-Min Wu
- The State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architectures, South China Agricultural University, Guangzhou, 510642, China
- Guangdong Laboratory of Lingnan Modern Agriculture, Guangzhou, 510642, China
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14
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Sayer EJ, Crawford JA, Edgerley J, Askew AP, Hahn CZ, Whitlock R, Dodd IC. Adaptation to chronic drought modifies soil microbial community responses to phytohormones. Commun Biol 2021; 4:516. [PMID: 33941844 PMCID: PMC8093232 DOI: 10.1038/s42003-021-02037-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 03/26/2021] [Indexed: 02/02/2023] Open
Abstract
Drought imposes stress on plants and associated soil microbes, inducing coordinated adaptive responses, which can involve plant-soil signalling via phytohormones. However, we know little about how microbial communities respond to phytohormones, or how these responses are shaped by chronic (long-term) drought. Here, we added three phytohormones (abscisic acid, 1-aminocyclopropane-1-carboxylic acid, and jasmonic acid) to soils from long-term (25-year), field-based climate treatments to test the hypothesis that chronic drought alters soil microbial community responses to plant stress signalling. Phytohormone addition increased soil respiration, but this effect was stronger in irrigated than in droughted soils and increased soil respiration at low phytohormone concentrations could not be explained by their use as substrate. Thus, we show that drought adaptation within soil microbial communities modifies their responses to phytohormone inputs. Furthermore, distinct phytohormone-induced shifts in microbial functional groups in droughted vs. irrigated soils might suggest that drought-adapted soil microorganisms perceive phytohormones as stress-signals, allowing them to anticipate impending drought.
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Affiliation(s)
- Emma J Sayer
- Lancaster Environment Centre, Lancaster University, Lancaster, UK.
| | - John A Crawford
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - James Edgerley
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
| | - Andrew P Askew
- Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool, UK
| | - Christoph Z Hahn
- Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool, UK
| | - Raj Whitlock
- Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool, UK
| | - Ian C Dodd
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
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15
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Rhizosphere Bacterium Rhodococcus sp. P1Y Metabolizes Abscisic Acid to Form Dehydrovomifoliol. Biomolecules 2021; 11:biom11030345. [PMID: 33668728 PMCID: PMC7996341 DOI: 10.3390/biom11030345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 12/22/2022] Open
Abstract
The phytohormone abscisic acid (ABA) plays an important role in plant growth and in response to abiotic stress factors. At the same time, its accumulation in soil can negatively affect seed germination, inhibit root growth and increase plant sensitivity to pathogens. ABA is an inert compound resistant to spontaneous hydrolysis and its biological transformation is scarcely understood. Recently, the strain Rhodococcus sp. P1Y was described as a rhizosphere bacterium assimilating ABA as a sole carbon source in batch culture and affecting ABA concentrations in plant roots. In this work, the intermediate product of ABA decomposition by this bacterium was isolated and purified by preparative HPLC techniques. Proof that this compound belongs to ABA derivatives was carried out by measuring the molar radioactivity of the conversion products of this phytohormone labeled with tritium. The chemical structure of this compound was determined by instrumental techniques including high-resolution mass spectrometry, NMR spectrometry, FTIR and UV spectroscopies. As a result, the metabolite was identified as (4RS)-4-hydroxy-3,5,5-trimethyl-4-[(E)-3-oxobut-1-enyl]cyclohex-2-en-1-one (dehydrovomifoliol). Based on the data obtained, it was concluded that the pathway of bacterial degradation and assimilation of ABA begins with a gradual shortening of the acyl part of the molecule.
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16
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Taylor DM, Haney RS, Luckhart S. Aquatic Exposure to Abscisic Acid Transstadially Enhances Anopheles stephensi Resistance to Malaria Parasite Infection. Genes (Basel) 2020; 11:E1393. [PMID: 33255333 PMCID: PMC7761407 DOI: 10.3390/genes11121393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 11/21/2020] [Accepted: 11/22/2020] [Indexed: 12/13/2022] Open
Abstract
The ancient stress signaling molecule abscisic acid (ABA) is ubiquitous in animals and plants but is perhaps most well-known from its early discovery as a plant hormone. ABA can be released into water by plants and is found in nectar, but is also present in mammalian blood, three key contexts for mosquito biology. We previously established that addition of ABA to Anopheles stephensi larval rearing water altered immature development and life history traits of females derived from treated larvae, while addition of ABA to an infected bloodmeal increased resistance of adult female A. stephensi to human malaria parasite infection. Here we sought to determine whether larval treatment with ABA could similarly impact resistance to parasite infection in females derived from treated larvae and, if so, whether resistance could be extended to another parasite species. We examined nutrient levels and gene expression to demonstrate that ABA can transstadially alter resistance to a rodent malaria parasite with hallmarks of previously observed mechanisms of resistance following provision of ABA in blood to A. stephensi.
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Affiliation(s)
- Dean M. Taylor
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA; (D.M.T.); (R.S.H.)
| | - Reagan S. Haney
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA; (D.M.T.); (R.S.H.)
| | - Shirley Luckhart
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID 83844, USA; (D.M.T.); (R.S.H.)
- Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA
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17
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Kim SW, Goossens A, Libert C, Van Immerseel F, Staal J, Beyaert R. Phytohormones: Multifunctional nutraceuticals against metabolic syndrome and comorbid diseases. Biochem Pharmacol 2020; 175:113866. [PMID: 32088261 DOI: 10.1016/j.bcp.2020.113866] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/18/2020] [Indexed: 12/12/2022]
Abstract
Metabolic syndrome is characterized by the co-occurrence of diverse symptoms initiating the development of type 2 diabetes, cardiovascular diseases, and a variety of comorbid diseases. The complex constellation of numerous comorbidities makes it difficult to develop common therapeutic approaches that ameliorate these pathological features simultaneously. The plant hormones abscisic acid, salicylic acid, auxin, and cytokinins, have shown promising anti-inflammatory and pro-metabolic effects that could mitigate several disorders relevant to metabolic syndrome. Intriguingly, besides plants, human cells and gut microbes also endogenously produce these molecules, indicating a role in the complex interplay between inflammatory responses associated with metabolic syndrome, the gut microbiome, and nutrition. Here, we introduce how bioactive phytohormones can be generated endogenously and through the gut microbiome. These molecules subsequently influence immune responses and metabolism. We also elaborate on how phytohormones can beneficially modulate metabolic syndrome comorbidities, and propose them as nutraceuticals.
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Affiliation(s)
- Seo Woo Kim
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium; VIB-UGent Center for Plant Systems Biology, VIB, Ghent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Alain Goossens
- VIB-UGent Center for Plant Systems Biology, VIB, Ghent, Belgium; Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Claude Libert
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Filip Van Immerseel
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Jens Staal
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| | - Rudi Beyaert
- VIB-UGent Center for Inflammation Research, VIB, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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18
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Taylor DM, Olds CL, Haney RS, Torrevillas BK, Luckhart S. Comprehensive and Durable Modulation of Growth, Development, Lifespan and Fecundity in Anopheles stephensi Following Larval Treatment With the Stress Signaling Molecule and Novel Antimalarial Abscisic Acid. Front Microbiol 2020; 10:3024. [PMID: 32010091 PMCID: PMC6979008 DOI: 10.3389/fmicb.2019.03024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/17/2019] [Indexed: 12/19/2022] Open
Abstract
The larval environment of holometabolous insects determines many adult life history traits including, but not limited to, rate and success of development and adult lifespan and fecundity. The ancient stress signaling hormone abscisic acid (ABA), released by plants inundated with water and by leaf and root fragments in water, is likely ubiquitous in the mosquito larval environment and is well known for its wide ranging effects on invertebrate biology. Accordingly, ABA is a relevant stimulus and signal for mosquito development. In our studies, the addition of ABA at biologically relevant levels to larval rearing containers accelerated the time to pupation and increased death of A. stephensi pupae. We could not attribute these effects, however, to ABA-dependent changes in JH biosynthesis-associated gene expression, 20E titers or transcript patterns of insulin-like peptide genes. Adult females derived from ABA-treated larvae had reduced total protein content and significantly reduced post blood meal transcript expression of vitellogenin, effects that were consistent with variably reduced egg clutch sizes and oviposition success from the first through the third gonotrophic cycles. Adult female A. stephensi derived from ABA-treated larvae also exhibited reduced lifespans relative to controls. Collectively, these effects of ABA on A. stephensi life history traits are robust, durable and predictive of multiple impacts of an important malaria vector spreading to new malaria endemic regions.
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Affiliation(s)
- Dean M Taylor
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, United States
| | - Cassandra L Olds
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, United States
| | - Reagan S Haney
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, United States
| | - Brandi K Torrevillas
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, United States
| | - Shirley Luckhart
- Department of Entomology, Plant Pathology and Nematology, University of Idaho, Moscow, ID, United States.,Department of Biological Sciences, University of Idaho, Moscow, ID, United States
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19
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Li Y, Niu W, Cao X, Wang J, Zhang M, Duan X, Zhang Z. Effect of soil aeration on root morphology and photosynthetic characteristics of potted tomato plants (Solanum lycopersicum) at different NaCl salinity levels. BMC PLANT BIOLOGY 2019; 19:331. [PMID: 31357955 PMCID: PMC6661949 DOI: 10.1186/s12870-019-1927-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Salt stress is one of the environmental factors that greatly limits crop production worldwide because high salt concentrations in the soil affect morphological responses and physiological and metabolic processes, including root morphology and photosynthetic characteristics. Soil aeration has been reported to accelerate the growth of plants and increase crop yield. The objective of this study was to examine the effects of 3 NaCl salinity levels (28, 74 and 120 mM) and 3 aeration volume levels (2.3, 4.6 and 7.0 L/pot) versus non-aeration and salinity treatments on the root morphology, photosynthetic characteristics and chlorophyll content of potted tomato plants. RESULTS The results showed that both aeration volume and salinity level affected the root parameters, photosynthetic characteristics and chlorophyll content of potted tomato plants. The total length, surface area and volume of roots increased with the increase in aeration volume under each NaCl stress level. The effect was more marked in the fine roots (especially in ≤1 mm diameter roots). Under each NaCl stress level, the photosynthetic rate and chlorophyll content of tomato significantly increased in response to the aeration treatments. The net photosynthetic rate and chlorophyll a and t content increased by 39.6, 26.9, and 17.9%, respectively, at 7.0 L/pot aeration volume compared with no aeration in the 28 mM NaCl treatment. We also found that aeration could reduce the death rate of potted tomato plants under high salinity stress conditions (120 mM NaCl). CONCLUSIONS The results suggest that the negative effect of NaCl stress can be offset by soil aeration. Soil aeration can promote root growth and increase the photosynthetic rate and chlorophyll content, thus promoting plant growth and reducing the plant death rate under NaCl stress conditions.
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Affiliation(s)
- Yuan Li
- Northwest Land and Resources Research Center, Shaanxi Normal University, Xi’an, 710119 Shaanxi China
| | - Wenquan Niu
- Institute of Soil and Water Conservation, Northwest A&F University, No.26 Xinong Road, Yangling, Shaanxi Province 712100 People’s Republic of China
- Institute of Water-saving Agriculture in Arid Areas of China (IWSA), Northwest A&F University, Yangling, 712100 Shaanxi China
- Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, 712100 Shaanxi China
| | - Xiaoshu Cao
- Northwest Land and Resources Research Center, Shaanxi Normal University, Xi’an, 710119 Shaanxi China
| | - Jingwei Wang
- Institute of Soil and Water Conservation, Northwest A&F University, No.26 Xinong Road, Yangling, Shaanxi Province 712100 People’s Republic of China
- Institute of Water-saving Agriculture in Arid Areas of China (IWSA), Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Mingzhi Zhang
- Institute of Water-saving Agriculture in Arid Areas of China (IWSA), Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Xiaohui Duan
- Northwest Land and Resources Research Center, Shaanxi Normal University, Xi’an, 710119 Shaanxi China
- Institute of Water-saving Agriculture in Arid Areas of China (IWSA), Northwest A&F University, Yangling, 712100 Shaanxi China
| | - Zhenxing Zhang
- Key Laboratory of Vegetation Ecology, Ministry of Education, Institute of Grassland Science, Northeast Normal University, Changchun, 130024 Jilin Province China
- State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, 130117 Jilin Province China
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20
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Abstract
The journal Microbes and Infection is celebrating its vigintennial anniversary and has reunited for this occasion two dozen reviews illustrating achievements of the past as well as future challenges in the field of infectious diseases. From top-notch vaccine development strategies, to high-throughput powered analysis of complex host-pathogen interactions, to innovative therapeutic designs, this issue covers the entire spectrum of pathogens and areas of their confrontation with the host.
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Affiliation(s)
- Sophia J Häfner
- University of Copenhagen, BRIC Biotech Research & Innovation Centre, Copenhagen, Denmark.
| | - David M Ojcius
- Department of Biomedical Sciences, University of the Pacific, Arthur Dugoni School of Dentistry, San Francisco, USA
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