251
|
Du H, Huang F, Wu N, Li X, Hu H, Xiong L. Integrative Regulation of Drought Escape through ABA-Dependent and -Independent Pathways in Rice. MOLECULAR PLANT 2018; 11:584-597. [PMID: 29366830 DOI: 10.1016/j.molp.2018.01.004] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/10/2018] [Accepted: 01/15/2018] [Indexed: 05/21/2023]
Abstract
Many plants have evolved a drought escape (DE) mechanism to shorten their life cycle when facing water-deficit conditions. While drought tolerance has been intensively investigated, the genetic and molecular mechanisms of DE remain elusive. In this study, we found that low water-deficit treatment (LWT) at the early stage of rice development can trigger early flowering and reduced tiller numbers. LWT induced the accumulation of abscisic acid (ABA), which in turn has feed-back effects on light perception and circadian clock by synchronously regulating many flowering-related genes to promote early flowering. Moreover, some of light receptors, circadian components, and flowering-related genes including OsTOC1, Ghd7, and PhyB were found to be involved in LWT in an ABA-dependent manner, whereas some of the other flowering-related genes including OsGI, OsELF3, OsPRR37, and OsMADS50 were involved in the regulation of DE independent of ABA. In addition, we found that strigolactones and OsTB1 are involved in the tillering inhibition under LWT, which is independent of the flowering pathway in rice. Taken together, our findings provide compelling evidence that DE in rice is coordinately regulated by multiple pathways during the reproduction (flowering) switch.
Collapse
Affiliation(s)
- Hao Du
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Fei Huang
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Nai Wu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Xianghua Li
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Honghong Hu
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China
| | - Lizhong Xiong
- National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
252
|
Gao J, Zhang T, Xu B, Jia L, Xiao B, Liu H, Liu L, Yan H, Xia Q. CRISPR/Cas9-Mediated Mutagenesis of Carotenoid Cleavage Dioxygenase 8 (CCD8) in Tobacco Affects Shoot and Root Architecture. Int J Mol Sci 2018; 19:E1062. [PMID: 29614837 PMCID: PMC5979566 DOI: 10.3390/ijms19041062] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 03/30/2018] [Accepted: 03/30/2018] [Indexed: 01/31/2023] Open
Abstract
Strigolactones (SLs) are a class of phytohormones that regulate plant architecture. Carotenoid cleavage dioxygenase (CCD) genes are involved in the biosynthesis of SLs and are identified and characterized in many plants. However, the function of CCD genes in tobacco remains poorly understood. In this study, two closely related genes NtCCD8A and NtCCD8B were cloned from tobacco (Nicotiana tabacum L.). The two NtCCD8 genes are orthologues of the tomato (Solanum lycopersicum) carotenoid cleavage dioxygenase 8 (SlCCD8) gene. NtCCD8A and NtCCD8B were primarily expressed in tobacco roots, but low expression levels of these genes were detected in all plant tissues, and their transcript levels significantly increased in response to phosphate limitation. NtCCD8A and NtCCD8B mutations were introduced into tobacco using the CRISPR/Cas9 system and transgenic tobacco lines for both ntccd8 mutant alleles were identified. The ntccd8a and ntccd8b mutant alleles were inactivated by a deletion of three nucleotides and insertion of one nucleotide, respectively, both of which led to the production of premature stop codons. The ntccd8 mutants had increased shoot branching, reduced plant height, increased number of leaves and nodes, and reduced total plant biomass compared to wild-type plants; however, the root-to-shoot ratio was unchanged. In addition, mutant lines had shorter primary roots and more of lateral roots than wild type. These results suggest that NtCCD8 genes are important for changes in tobacco plant architecture.
Collapse
Affiliation(s)
- Junping Gao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Tong Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Bingxin Xu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Ling Jia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Bingguang Xiao
- Key Laboratory of Tobacco Biotechnological Breeding, National Tobacco Genetic Engineering Research Center, Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021, China.
| | - He Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Lijing Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Hao Yan
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| | - Qingyou Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
| |
Collapse
|
253
|
Chen L, Zhao Y, Xu S, Zhang Z, Xu Y, Zhang J, Chong K. OsMADS57 together with OsTB1 coordinates transcription of its target OsWRKY94 and D14 to switch its organogenesis to defense for cold adaptation in rice. THE NEW PHYTOLOGIST 2018; 218:219-231. [PMID: 29364524 PMCID: PMC5873253 DOI: 10.1111/nph.14977] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/25/2017] [Indexed: 05/19/2023]
Abstract
Plants modify their development to adapt to their environment, protecting themselves from detrimental conditions such as chilling stress by triggering a variety of signaling pathways; however, little is known about how plants coordinate developmental patterns and stress responses at the molecular level. Here, we demonstrate that interacting transcription factors OsMADS57 and OsTB1 directly target the defense gene OsWRKY94 and the organogenesis gene D14 to trade off the functions controlling/moderating rice tolerance to cold. Overexpression of OsMADS57 maintains rice tiller growth under chilling stress. OsMADS57 binds directly to the promoter of OsWRKY94, activating its transcription for the cold stress response, while suppressing its activity under normal temperatures. In addition, OsWRKY94 was directly targeted and suppressed by OsTB1 under both normal and chilling temperatures. However, D14 transcription was directly promoted by OsMADS57 for suppressing tillering under the chilling treatment, whereas D14 was repressed for enhancing tillering under normal condition.We demonstrated that OsMADS57 and OsTB1 conversely affect rice chilling tolerance via targeting OsWRKY94. Our findings highlight a molecular genetic mechanism coordinating organogenesis and chilling tolerance in rice, which supports and extends recent work suggesting that chilling stress environments influence organ differentiation.
Collapse
Affiliation(s)
- Liping Chen
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Yuan Zhao
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
| | - Shujuan Xu
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Zeyong Zhang
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Yunyuan Xu
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Jingyu Zhang
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
| | - Kang Chong
- Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of SciencesBeijing100093China
- University of Chinese Academy of SciencesBeijing100049China
- National Center for Plant Gene ResearchBeijing100093China
| |
Collapse
|
254
|
Exogenous Melatonin Confers Cadmium Tolerance by Counterbalancing the Hydrogen Peroxide Homeostasis in Wheat Seedlings. Molecules 2018; 23:molecules23040799. [PMID: 29601513 PMCID: PMC6017192 DOI: 10.3390/molecules23040799] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 12/22/2022] Open
Abstract
Melatonin has emerged as a research highlight regarding its important role in regulating plant growth and the adaptation to the environmental stresses. In this study, we investigated how melatonin prevented the cadmium toxicity to wheat seedlings. The results demonstrated that cadmium induced the expression of melatonin biosynthesis-related genes and cause a significant increase of endogenous melatonin level. Melatonin treatment drastically alleviated the cadmium toxicity, resulting in increased plant height, biomass accumulation, and root growth. Cadmium and senescence treatment significantly increased the endogenous level of hydrogen peroxide, which was strictly counterbalanced by melatonin. Furthermore, melatonin treatment caused a significant increase of GSH (reduced glutathione) content and the GSH/GSSG (oxidized glutathione) ratio. The activities of two key antioxidant enzymes, ascorbate peroxidase (APX) and superoxide dismutase (SOD), but not catalase (CAT) and peroxidase (POD), were specifically improved by melatonin. Additionally, melatonin not only promoted the primary root growth, but also drastically enhanced the capacity of the seedling roots to degrade the exogenous hydrogen peroxide. These results suggested that melatonin played a key role in maintaining the hydrogen peroxide homeostasis, via regulation of the antioxidant systems. Conclusively, this study revealed a crucial protective role of melatonin in the regulation of cadmium resistance in wheat.
Collapse
|
255
|
Rozpądek P, Domka AM, Nosek M, Ważny R, Jędrzejczyk RJ, Wiciarz M, Turnau K. The Role of Strigolactone in the Cross-Talk Between Arabidopsis thaliana and the Endophytic Fungus Mucor sp. Front Microbiol 2018; 9:441. [PMID: 29615990 PMCID: PMC5867299 DOI: 10.3389/fmicb.2018.00441] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 02/26/2018] [Indexed: 01/24/2023] Open
Abstract
Over the last years the role of fungal endophytes in plant biology has been extensively studied. A number of species were shown to positively affect plant growth and fitness, thus attempts have been made to utilize these microorganisms in agriculture and phytoremediation. Plant-fungi symbiosis requires multiple metabolic adjustments of both of the interacting organisms. The mechanisms of these adaptations are mostly unknown, however, plant hormones seem to play a central role in this process. The plant hormone strigolactone (SL) was previously shown to activate hyphae branching of mycorrhizal fungi and to negatively affect pathogenic fungi growth. Its role in the plant-endophytic fungi interaction is unknown. The effect of the synthetic SL analog GR24 on the endophytic fungi Mucor sp. growth, respiration, H2O2 production and the activity of antioxidant enzymes was evaluated. We found fungi colony growth rate was decreased in a GR24 concentration dependent manner. Additionally, the fungi accumulated more H2O2 what was accompanied by an altered activity of antioxidant enzymes. Symbiosis with Mucor sp. positively affected Arabidopsis thaliana growth, but SL was necessary for the establishment of the beneficial interaction. A. thaliana biosynthesis mutants max1 and max4, but not the SL signaling mutant max2 did not develop the beneficial phenotype. The negative growth response was correlated with alterations in SA homeostasis and a significant upregulation of genes encoding selected plant defensins. The fungi were also shown to be able to decompose SL in planta and to downregulate the expression of SL biosynthesis genes. Additionally, we have shown that GR24 treatment with a dose of 1 μM activates the production of SA in A. thaliana. The results presented here provide evidence for a role of SL in the plant-endophyte cross-talk during the mutualistic interaction between Arabidopsis thaliana and Mucor sp.
Collapse
Affiliation(s)
- Piotr Rozpądek
- Małopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland
| | - Agnieszka M. Domka
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| | - Michał Nosek
- Institute of Biology, Pedagogical University of Kraków, Kraków, Poland
| | - Rafał Ważny
- Małopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland
| | | | - Monika Wiciarz
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | - Katarzyna Turnau
- Institute of Environmental Sciences, Jagiellonian University, Kraków, Poland
| |
Collapse
|
256
|
Zhang Y, Lv S, Wang G. Strigolactones are common regulators in induction of stomatal closure in planta. PLANT SIGNALING & BEHAVIOR 2018; 13:e1444322. [PMID: 29473784 PMCID: PMC5927686 DOI: 10.1080/15592324.2018.1444322] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Strigolactones (SLs) have been implicated in many plant biological processes, including growth and development and the acclimation to environmental stress. We recently reported that SLs intrinsically acted as prominent regulators in induction of stomatal closure. Here we present evidence that the effect of SLs on stotamal closure is not limited to Arabidopsis, and thus SLs could serve as common regulators in the modulation of stomatal apertures of various plant species. Nevertheless, TIS108, a SL-biosynthetic inhibitor, exerted no effect on stomatal apertures. In addition, the SL receptor mutant atd14-5, similar to SL-deficient and more axillary growth 2 (max2) mutants, exhibited hypersensitivity to drought stress. Altogether, these results reinforce the role of SLs as common regulators in stress resilience.
Collapse
Affiliation(s)
- Yonghong Zhang
- Laboratory of Medicinal Plant, School of Basic Medicine, Hubei University of Medicine, Shiyan, China
| | - Shuo Lv
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Guodong Wang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, China
- CONTACT Guodong Wang Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| |
Collapse
|
257
|
Drought and salt stress in Macrotyloma uniflorum leads to common and specific transcriptomic responses and reveals importance of raffinose family oligosaccharides in stress tolerance. GENE REPORTS 2018. [DOI: 10.1016/j.genrep.2017.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
258
|
Chen H, Zuo X, Shao H, Fan S, Ma J, Zhang D, Zhao C, Yan X, Liu X, Han M. Genome-wide analysis of carotenoid cleavage oxygenase genes and their responses to various phytohormones and abiotic stresses in apple (Malus domestica). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 123:81-93. [PMID: 29223850 DOI: 10.1016/j.plaphy.2017.12.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/01/2017] [Accepted: 12/01/2017] [Indexed: 05/25/2023]
Abstract
Carotenoid cleavage oxygenases (CCOs) are able to cleave carotenoids to produce apocarotenoids and their derivatives, which are important for plant growth and development. In this study, 21 apple CCO genes were identified and divided into six groups based on their phylogenetic relationships. We further characterized the apple CCO genes in terms of chromosomal distribution, structure and the presence of cis-elements in the promoter. We also predicted the cellular localization of the encoded proteins. An analysis of the synteny within the apple genome revealed that tandem, segmental, and whole-genome duplication events likely contributed to the expansion of the apple carotenoid oxygenase gene family. An additional integrated synteny analysis identified orthologous carotenoid oxygenase genes between apple and Arabidopsis thaliana, which served as references for the functional analysis of the apple CCO genes. The net photosynthetic rate, transpiration rate, and stomatal conductance of leaves decreased, while leaf stomatal density increased under drought and saline conditions. Tissue-specific gene expression analyses revealed diverse spatiotemporal expression patterns. Finally, hormone and abiotic stress treatments indicated that many apple CCO genes are responsive to various phytohormones as well as drought and salinity stresses. The genome-wide identification of apple CCO genes and the analyses of their expression patterns described herein may provide a solid foundation for future studies examining the regulation and functions of this gene family.
Collapse
Affiliation(s)
- Hongfei Chen
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Xiya Zuo
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Hongxia Shao
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Sheng Fan
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Juanjuan Ma
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Dong Zhang
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Caiping Zhao
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Xiangyan Yan
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Xiaojie Liu
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China
| | - Mingyu Han
- College of Horticulture, Northwest A & F University, Yangling, Shaanxi, 712100, China.
| |
Collapse
|
259
|
Tadele Z. African Orphan Crops under Abiotic Stresses: Challenges and Opportunities. SCIENTIFICA 2018; 2018:1451894. [PMID: 29623231 PMCID: PMC5829434 DOI: 10.1155/2018/1451894] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 12/17/2017] [Indexed: 05/23/2023]
Abstract
A changing climate, a growing world population, and a reduction in arable land devoted to food production are all problems facing the world food security. The development of crops that can yield under uncertain and extreme climatic and soil growing conditions can play a key role in mitigating these problems. Major crops such as maize, rice, and wheat are responsible for a large proportion of global food production but many understudied crops (commonly known as "orphan crops") including millets, cassava, and cowpea feed millions of people in Asia, Africa, and South America and are already adapted to the local environments in which they are grown. The application of modern genetic and genomic tools to the breeding of these crops can provide enormous opportunities for ensuring world food security but is only in its infancy. In this review, the diversity and types of understudied crops will be introduced, and the beneficial traits of these crops as well as their role in the socioeconomics of Africa will be discussed. In addition, the response of orphan crops to diverse types of abiotic stresses is investigated. A review of the current tools and their application to the breeding of enhanced orphan crops will also be described. Finally, few examples of global efforts on tackling major abiotic constraints in Africa are presented.
Collapse
Affiliation(s)
- Zerihun Tadele
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
- Center for Development and Environment (CDE), University of Bern, Bern, Switzerland
- Institute of Biotechnology, Addis Ababa University, Addis Ababa, Ethiopia
| |
Collapse
|
260
|
Shim JS, Oh N, Chung PJ, Kim YS, Choi YD, Kim JK. Overexpression of OsNAC14 Improves Drought Tolerance in Rice. FRONTIERS IN PLANT SCIENCE 2018; 9:310. [PMID: 29593766 PMCID: PMC5855183 DOI: 10.3389/fpls.2018.00310] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 02/22/2018] [Indexed: 05/14/2023]
Abstract
Plants have evolved to have sophisticated adaptation mechanisms to cope with drought stress by reprograming transcriptional networks through drought responsive transcription factors. NAM, ATAF1-2, and CUC2 (NAC) transcription factors are known to be associated with various developmental processes and stress tolerance. In this study, we functionally characterized the rice drought responsive transcription factor OsNAC14. OsNAC14 was predominantly expressed at meiosis stage but is induced by drought, high salinity, ABA, and low temperature in leaves. Overexpression of OsNAC14 resulted in drought tolerance at the vegetative stage of growth. Field drought tests demonstrated that OsNAC14 overexpressing transgenic rice lines exhibited higher number of panicle and filling rate compared to non-transgenic plants under drought conditions. RNA-sequencing analysis revealed that OsNAC14 overexpression elevated the expression of genes for stress response, DNA damage repair, defense related, and strigolactone biosynthesis. In addition, chromatin immunoprecipitation analysis confirmed the direct interaction of OsNAC14 with the promoter of OsRAD51A1, a key component in homologous recombination in DNA repair system. Collectively, these results indicate that OsNAC14 mediates drought tolerance by recruiting factors involved in DNA damage repair and defense response resulting in improved tolerance to drought.
Collapse
Affiliation(s)
- Jae Sung Shim
- Graduate School of International Agricultural Technology and Crop Biotechnology Institute, GreenBio Science & Technology, Seoul National University, Pyeongchang, South Korea
| | - Nuri Oh
- Graduate School of International Agricultural Technology and Crop Biotechnology Institute, GreenBio Science & Technology, Seoul National University, Pyeongchang, South Korea
| | - Pil Joong Chung
- Graduate School of International Agricultural Technology and Crop Biotechnology Institute, GreenBio Science & Technology, Seoul National University, Pyeongchang, South Korea
| | - Youn Shic Kim
- Graduate School of International Agricultural Technology and Crop Biotechnology Institute, GreenBio Science & Technology, Seoul National University, Pyeongchang, South Korea
| | - Yang Do Choi
- Graduate School of International Agricultural Technology and Crop Biotechnology Institute, GreenBio Science & Technology, Seoul National University, Pyeongchang, South Korea
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
| | - Ju-Kon Kim
- Graduate School of International Agricultural Technology and Crop Biotechnology Institute, GreenBio Science & Technology, Seoul National University, Pyeongchang, South Korea
- *Correspondence: Ju-Kon Kim
| |
Collapse
|
261
|
Liu G, Pfeifer J, de Brito Francisco R, Emonet A, Stirnemann M, Gübeli C, Hutter O, Sasse J, Mattheyer C, Stelzer E, Walter A, Martinoia E, Borghi L. Changes in the allocation of endogenous strigolactone improve plant biomass production on phosphate-poor soils. THE NEW PHYTOLOGIST 2018; 217:784-798. [PMID: 29083039 PMCID: PMC5765447 DOI: 10.1111/nph.14847] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 09/05/2017] [Indexed: 05/11/2023]
Abstract
Strigolactones (SLs) are carotenoid-derived phytohormones shaping plant architecture and inducing the symbiosis with endomycorrhizal fungi. In Petunia hybrida, SL transport within the plant and towards the rhizosphere is driven by the ABCG-class protein PDR1. PDR1 expression is regulated by phytohormones and by the soil phosphate abundance, and thus SL transport integrates plant development with nutrient conditions. We overexpressed PDR1 (PDR1 OE) to investigate whether increased endogenous SL transport is sufficient to improve plant nutrition and productivity. Phosphorus quantification and nondestructive X-ray computed tomography were applied. Morphological and gene expression changes were quantified at cellular and whole tissue levels via time-lapse microscopy and quantitative PCR. PDR1 OE significantly enhanced phosphate uptake and plant biomass production on phosphate-poor soils. PDR1 OE plants showed increased lateral root formation, extended root hair elongation, faster mycorrhization and reduced leaf senescence. PDR1 overexpression allowed considerable SL biosynthesis by releasing SL biosynthetic genes from an SL-dependent negative feedback. The increased endogenous SL transport/biosynthesis in PDR1 OE plants is a powerful tool to improve plant growth on phosphate-poor soils. We propose PDR1 as an as yet unexplored trait to be investigated for crop production. The overexpression of PDR1 is a valuable strategy to investigate SL functions and transport routes.
Collapse
Affiliation(s)
- Guowei Liu
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Johannes Pfeifer
- Institute of Agricultural SciencesETH ZurichUniversitätstrasse 2Zurich8092Switzerland
| | - Rita de Brito Francisco
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Aurelia Emonet
- Département de Biologie Moléculaire VégétaleFaculté de Biologie et MédecineBiophoreLausanneCH‐1015Switzerland
| | - Marina Stirnemann
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Christian Gübeli
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Olivier Hutter
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Joëlle Sasse
- Carnegie Institution for Science1530 P Street NWWashingtonDC20005USA
| | - Christian Mattheyer
- Goethe‐Universität Frankfurt am MainTheodor‐W.‐Adorno‐Platz 1Frankfurt am Main60323Germany
| | - Ernst Stelzer
- Goethe‐Universität Frankfurt am MainTheodor‐W.‐Adorno‐Platz 1Frankfurt am Main60323Germany
| | - Achim Walter
- Institute of Agricultural SciencesETH ZurichUniversitätstrasse 2Zurich8092Switzerland
| | - Enrico Martinoia
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| | - Lorenzo Borghi
- Department of Plant and Microbial BiologyUniversity of ZurichZollikerstrasse 107Zurich8008Switzerland
| |
Collapse
|
262
|
Lv S, Zhang Y, Li C, Liu Z, Yang N, Pan L, Wu J, Wang J, Yang J, Lv Y, Zhang Y, Jiang W, She X, Wang G. Strigolactone-triggered stomatal closure requires hydrogen peroxide synthesis and nitric oxide production in an abscisic acid-independent manner. THE NEW PHYTOLOGIST 2018; 217:290-304. [PMID: 28940201 DOI: 10.1111/nph.14813] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 08/21/2017] [Indexed: 05/05/2023]
Abstract
Accumulating data indicate that strigolactones (SLs) are implicated in the response to environmental stress, implying a potential effect of SLs on stomatal response and thus stress acclimatization. In this study, we investigated the molecular mechanism underlying the effect of SLs on stomatal response and their interrelation with abscisic acid (ABA) signaling. The impact of SLs on the stomatal response was investigated by conducting SL-feeding experiments and by analyzing SL-related mutants. The involvement of endogenous ABA and ABA-signaling components in SL-mediated stomatal closure was physiologically evaluated using genetic mutants. Pharmacological and genetic approaches were employed to examine hydrogen peroxide (H2 O2 ) and nitric oxide (NO) production. SL-related mutants exhibited larger stomatal apertures, while exogenous SLs were able to induce stomatal closure and rescue the more widely opening stomata of SL-deficient mutants. The SL-biosynthetic genes were induced by abiotic stress in shoot tissues. Disruption of ABA-biosynthetic genes, as well as genes that function in guard cell ABA signaling, resulted in no impairment in SL-mediated stomatal response. However, disruption of MORE AXILLARY GROWTH2 (MAX2), DWARF14 (D14), and the anion channel gene SLOW ANION CHANNEL-ASSOCIATED 1 (SLAC1) impaired SL-triggered stomatal closure. SLs stimulated a marked increase in H2 O2 and NO contents, which is required for stomatal closure. Our results suggest that SLs play a prominent role, together with H2 O2 /NO production and SLAC1 activation, in inducing stomatal closure in an ABA-independent mechanism.
Collapse
Affiliation(s)
- Shuo Lv
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Yonghong Zhang
- Laboratory of Medicinal Plants, School of Basic Medicine, Hubei University of Medicine, Shiyan, 442000, China
| | - Chen Li
- Laboratory of Medicinal Plants, School of Basic Medicine, Hubei University of Medicine, Shiyan, 442000, China
- Laboratory of Chinese Herbal Pharmacology, Oncology Center, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, China
| | - Zhijun Liu
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Nan Yang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Lixia Pan
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Jinbin Wu
- Laboratory of Phytopathology, Wageningen University, Droevendaalsesteeg 1, Wageningen, 6708 PB, the Netherlands
| | - Jiajing Wang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Jingwei Yang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Yanting Lv
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Yutao Zhang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Wenqian Jiang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Xiaoping She
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Guodong Wang
- Key Laboratory of Ministry of Education for Medicinal Plant Resource and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| |
Collapse
|
263
|
Tiwari S, Lata C, Chauhan PS, Prasad V, Prasad M. A Functional Genomic Perspective on Drought Signalling and its Crosstalk with Phytohormone-mediated Signalling Pathways in Plants. Curr Genomics 2017; 18:469-482. [PMID: 29204077 PMCID: PMC5684651 DOI: 10.2174/1389202918666170605083319] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 10/03/2016] [Accepted: 10/15/2016] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Drought stress is one of the most important abiotic stresses that negatively influence crop performance and productivity. Plants acclimatize to drought stress conditions through altered molecular, biochemical and physiological responses. Gene and/or protein expression and regulation are thought to be modulated upon stress perception and signal transduction for providing requisite endurance to plants.Plant growth regulators or phytohormones are important molecules required for various biological processes in plants and are also central to stress signalling pathways. Among various phytohormones, Abscisic Acid (ABA) and Ethylene (ET) are considered to be the most vital growth regulators implicated in drought stress signalling and tolerance. Besides the above two known classical phytohormones, Salicylic Acid (SA) and Jasmonic Acid (JA) have also been found to potentially enhance abiotic stress tolerance particularly that of drought, salinity, and heat stress tolerance in plants. Apart from these several other growth regulators such as Cytokinins (CKs), Auxin (AUX), Gibberellic Acid (GA), Brassinosteroids (BRs) and Strigolactones (SLs) have also been reported to actively participate in abiotic stress responses and tolerance in plants. The abiotic stress signalling in plants regulated by these hormones further depends upon the nature, intensity, and duration of exposure to various environmental stresses. It has been reported that all these phytohormones are also involved in extensive crosstalk and signal transduction among themselves and/or with other factors. CONCLUSION This review thus summarizes the molecular mechanism of drought signalling and its crosstalk with various phytohormone signalling pathways implicated in abiotic stress response and tolerance.
Collapse
Affiliation(s)
- Shalini Tiwari
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
- Department of Botany, University of Lucknow, Lucknow-226007, India
| | - Charu Lata
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
| | - Puneet Singh Chauhan
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow-226001, India
| | - Vivek Prasad
- Department of Botany, University of Lucknow, Lucknow-226007, India
| | - Manoj Prasad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi-110067, India
| |
Collapse
|
264
|
Li W, Nguyen KH, Chu HD, Ha CV, Watanabe Y, Osakabe Y, Leyva-González MA, Sato M, Toyooka K, Voges L, Tanaka M, Mostofa MG, Seki M, Seo M, Yamaguchi S, Nelson DC, Tian C, Herrera-Estrella L, Tran LSP. The karrikin receptor KAI2 promotes drought resistance in Arabidopsis thaliana. PLoS Genet 2017; 13:e1007076. [PMID: 29131815 PMCID: PMC5703579 DOI: 10.1371/journal.pgen.1007076] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 11/27/2017] [Accepted: 10/15/2017] [Indexed: 11/18/2022] Open
Abstract
Drought causes substantial reductions in crop yields worldwide. Therefore, we set out to identify new chemical and genetic factors that regulate drought resistance in Arabidopsis thaliana. Karrikins (KARs) are a class of butenolide compounds found in smoke that promote seed germination, and have been reported to improve seedling vigor under stressful growth conditions. Here, we discovered that mutations in KARRIKIN INSENSITIVE2 (KAI2), encoding the proposed karrikin receptor, result in hypersensitivity to water deprivation. We performed transcriptomic, physiological and biochemical analyses of kai2 plants to understand the basis for KAI2-regulated drought resistance. We found that kai2 mutants have increased rates of water loss and drought-induced cell membrane damage, enlarged stomatal apertures, and higher cuticular permeability. In addition, kai2 plants have reduced anthocyanin biosynthesis during drought, and are hyposensitive to abscisic acid (ABA) in stomatal closure and cotyledon opening assays. We identified genes that are likely associated with the observed physiological and biochemical changes through a genome-wide transcriptome analysis of kai2 under both well-watered and dehydration conditions. These data provide evidence for crosstalk between ABA- and KAI2-dependent signaling pathways in regulating plant responses to drought. A comparison of the strigolactone receptor mutant d14 (DWARF14) to kai2 indicated that strigolactones also contributes to plant drought adaptation, although not by affecting cuticle development. Our findings suggest that chemical or genetic manipulation of KAI2 and D14 signaling may provide novel ways to improve drought resistance.
Collapse
Affiliation(s)
- Weiqiang Li
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Kien Huu Nguyen
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Ha Duc Chu
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Chien Van Ha
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Yasuko Watanabe
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Yuriko Osakabe
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Marco Antonio Leyva-González
- Deutsche Forschungsgemeinschaft Center for Regenerative Therapies, Technische Universität Dresden, Fetscherstraße 105, Germany
| | - Mayuko Sato
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Kiminori Toyooka
- Mass Spectrometry and Microscopy Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Laura Voges
- Department of Genetics, University of Georgia, Athens, Georgia, United States of America
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Mohammad Golam Mostofa
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Mitsunori Seo
- Dormancy and Adaptation Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Shinjiro Yamaguchi
- Department of Biomolecular Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan
| | - David C. Nelson
- Department of Botany & Plant Sciences, University of California, Riverside, Riverside, California, United States of America
| | - Chunjie Tian
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Luis Herrera-Estrella
- Laboratorio Nacional de Genómica para la Biodiversidad (Langebio)/Unidad de Genómica Avanzada, Centro de Investigación y Estudios Avanzados del Instituto Politécnico Nacional, Irapuato, Guanajuato, Mexico
| | - Lam-Son Phan Tran
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- * E-mail:
| |
Collapse
|
265
|
Recent advances in molecular basis for strigolactone action. SCIENCE CHINA-LIFE SCIENCES 2017; 61:277-284. [PMID: 29116554 DOI: 10.1007/s11427-017-9195-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/06/2017] [Indexed: 12/18/2022]
Abstract
Strigolactones (SLs) are a very special class of plant hormones, which act as endogenous signals to regulate shoot branching in plants, and also serve as rhizosphere signals to regulate interactions of host plants with heterologous organisms such as symbiotic arbuscular mycorrhizal fungi and parasitic weeds. In this short review, we give a brief description of novel discoveries in SL biosynthesis pathway, and mainly summarize the recent advances in SL perception and signal transduction.
Collapse
|
266
|
Current understanding of pattern-triggered immunity and hormone-mediated defense in rice (Oryza sativa) in response to Magnaporthe oryzae infection. Semin Cell Dev Biol 2017; 83:95-105. [PMID: 29061483 DOI: 10.1016/j.semcdb.2017.10.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/21/2017] [Accepted: 10/20/2017] [Indexed: 11/22/2022]
Abstract
Plant pathogens represent a huge threat to world food security, affecting both crop production and quality. Although significant progress has been made in improving plant immunity by expressing key, defense-related genes and proteins from different species in transgenic crops, a challenge remains for molecular breeders and biotechnologists to successfully engineer elite, transgenic crop varieties with improved resistance against critical plant pathogens. Upon pathogen attack, including infection of rice (Oryza sativa) by Magnaporthe oryzae, host plants initiate a complex defense response at molecular, biochemical and physiological levels. Plants perceive the presence of pathogens by detecting microbe-associated molecular patterns via pattern recognition receptors, and initiate a first line of innate immunity, the so-called pattern-triggered immunity (PTI). This results in a series of downstream defense responses, including the production of hormones, which collectively function to fend off pathogen attacks. A variety of studies have demonstrated that many genes are involved in the defense response of rice to M. oryzae. In this review, the current understanding of mechanisms that improve rice defense response to M. oryzae will be discussed, with special focus on PTI and the phytohormones ethylene, jasmonic acid, salicylic acid, and abscisic acid; as well as on the mediation of defense signaling mechanisms by PTI and these hormones. Potential target genes that may serve as promising candidates for improving rice immunity against M. oryzae will also be discussed.
Collapse
|
267
|
Wei W, Tao JJ, Chen HW, Li QT, Zhang WK, Ma B, Lin Q, Zhang JS, Chen SY. A Histone Code Reader and a Transcriptional Activator Interact to Regulate Genes for Salt Tolerance. PLANT PHYSIOLOGY 2017; 175:1304-1320. [PMID: 28874519 PMCID: PMC5664453 DOI: 10.1104/pp.16.01764] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 09/01/2017] [Indexed: 05/16/2023]
Abstract
Plant homeodomain (PHD) finger proteins are involved in various developmental processes and stress responses. They recognize and bind to epigenetically modified histone H3 tail and function as histone code readers. Here we report that GmPHD6 reads low methylated histone H3K4me0/1/2 but not H3K4me3 with its N-terminal domain instead of the PHD finger. GmPHD6 does not possess transcriptional regulatory ability but has DNA-binding ability. Through the PHD finger, GmPHD6 interacts with its coactivator, LHP1-1/2, to form a transcriptional activation complex. Using a transgenic hairy root system, we demonstrate that overexpression of GmPHD6 improves stress tolerance in soybean (Glycinemax) plants. Knocking down the LHP1 expression disrupts this role of GmPHD6, indicating that GmPHD6 requires LHP1 functions during stress response. GmPHD6 influences expression of dozens of stress-related genes. Among these, we identified three targets of GmPHD6, including ABA-stress-ripening-induced CYP75B1 and CYP82C4 Overexpression of each gene confers stress tolerance in soybean plants. GmPHD6 is recruited to H3K4me0/1/2 marks and recognizes the G-rich elements in target gene promoters, whereas LHP1 activates expression of these targets. Our study reveals a mechanism involving two partners in a complex. Manipulation of the genes in this pathway should improve stress tolerance in soybean or other legumes/crops.
Collapse
Affiliation(s)
- Wei Wei
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jian-Jun Tao
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Hao-Wei Chen
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qing-Tian Li
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wan-Ke Zhang
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Biao Ma
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Qing Lin
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jin-Song Zhang
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shou-Yi Chen
- State Key Lab of Plant Genomics, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| |
Collapse
|
268
|
Griffiths CA, Paul MJ. Targeting carbon for crop yield and drought resilience. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:4663-4671. [PMID: 28653336 PMCID: PMC5655914 DOI: 10.1002/jsfa.8501] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/12/2017] [Accepted: 06/18/2017] [Indexed: 05/21/2023]
Abstract
Current methods of crop improvement are not keeping pace with projected increases in population growth. Breeding, focused around key traits of stem height and disease resistance, delivered the step-change yield improvements of the green revolution of the 1960s. However, subsequently, yield increases through conventional breeding have been below the projected requirement of 2.4% per year required by 2050. Genetic modification (GM) mainly for herbicide tolerance and insect resistance has been transformational, akin to a second green revolution, although GM has yet to make major inroads into intrinsic yield processes themselves. Drought imposes the major restriction on crop yields globally but, as yet, has not benefited substantially from genetic improvement and still presents a major challenge to agriculture. Much still has to be learnt about the complex process of how drought limits yield and what should be targeted. Mechanisms of drought adaptation from the natural environment cannot be taken into crops without significant modification for the agricultural environment because mechanisms of drought tolerance are often in contrast with mechanisms of high productivity required in agriculture. However, through convergence of fundamental and translational science, it would appear that a mechanism of sucrose allocation in crops can be modified for both productivity and resilience to drought and other stresses. Recent publications show how this mechanism can be targeted by GM, natural variation and a new chemical approach. Here, with an emphasis on drought, we highlight how understanding fundamental science about how crops grow, develop and what limits their growth and yield can be combined with targeted genetic selection and pioneering chemical intervention technology for transformational yield improvements. © 2017 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Collapse
Affiliation(s)
- Cara A Griffiths
- Plant Science, Rothamsted ResearchHarpendenHertfordshireAL5 2JQUK
| | - Matthew J Paul
- Plant Science, Rothamsted ResearchHarpendenHertfordshireAL5 2JQUK
| |
Collapse
|
269
|
Sedaghat M, Tahmasebi-Sarvestani Z, Emam Y, Mokhtassi-Bidgoli A. Physiological and antioxidant responses of winter wheat cultivars to strigolactone and salicylic acid in drought. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 119:59-69. [PMID: 28843889 DOI: 10.1016/j.plaphy.2017.08.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 08/03/2017] [Accepted: 08/17/2017] [Indexed: 05/23/2023]
Abstract
Strigolactones are considered as important regulators of plant growth and development. Recently positive regulatory influence of strigolactones in plant in response to drought and salt stress has been revealed. Salicylic acid, a phytohormone, has reported to be involved in a number of stress responses such as pathogen infection, UV irradiation, salinity and drought. Considering the concealed role of strigolactones in agronomic crops drought tolerance and possible interaction among salicylic acid and strigolactone, we investigated the effects of exogenous application of GR24 and salicylic acid on two winter wheat cultivars under drought conditions. Foliar GR24 and salicylic acid were applied on drought sensitive and drought tolerant winter wheat cultivars at tillering and anthesis stages in 40% and 80% of field capacity moisture levels. Strigolactones and salicylic acid treated plants showed higher tolerance to drought stress with regard to lower electrolyte leakage and higher relative water content, leaf stomatal limitation, membrane stability index and antioxidant enzyme activities. Salicylic acid application dampened malondialdehyde content in wheat plants. Drought tolerance of wheat plants were intensified in most of the cases when theses phytohormones were used together, suggesting a possible interaction between salicylic acid and strigolactones in drought situations.
Collapse
Affiliation(s)
- Mojde Sedaghat
- Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, PO Box 14115-336, Tehran, Iran.
| | | | - Yahya Emam
- Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, PO Box 71441-65186, Shiraz, Iran.
| | - Ali Mokhtassi-Bidgoli
- Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, PO Box 14115-336, Tehran, Iran.
| |
Collapse
|
270
|
De Cuyper C, Struk S, Braem L, Gevaert K, De Jaeger G, Goormachtig S. Strigolactones, karrikins and beyond. PLANT, CELL & ENVIRONMENT 2017; 40:1691-1703. [PMID: 28558130 DOI: 10.1111/pce.12996] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 05/24/2017] [Accepted: 05/24/2017] [Indexed: 05/12/2023]
Abstract
The plant hormones strigolactones are synthesized from carotenoids and signal via the α/β hydrolase DWARF 14 (D14) and the F-box protein MORE AXILLARY GROWTH 2 (MAX2). Karrikins, molecules produced upon fire, share MAX2 for signalling, but depend on the D14 paralog KARRIKIN INSENSITIVE 2 (KAI2) for perception with strong evidence that the MAX2-KAI2 protein complex might also recognize so far unknown plant-made karrikin-like molecules. Thus, the phenotypes of the max2 mutants are the complex consequence of a loss of both D14-dependent and KAI2-dependent signalling, hence, the reason why some biological roles, attributed to strigolactones based on max2 phenotypes, could never be observed in d14 or in the strigolactone-deficient max3 and max4 mutants. Moreover, the broadly used synthetic strigolactone analog rac-GR24 has been shown to mimic strigolactone as well as karrikin(-like) signals, providing an extra level of complexity in the distinction of the unique and common roles of both molecules in plant biology. Here, a critical overview is provided of the diverse biological processes regulated by strigolactones and/or karrikins. These two growth regulators are considered beyond their boundaries, and the importance of the yet unknown karrikin-like molecules is discussed as well.
Collapse
Affiliation(s)
- Carolien De Cuyper
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Sylwia Struk
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Lukas Braem
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
- Department of Biochemistry, Ghent University, 9000, Ghent, Belgium
- Medical Biotechnology Center, VIB, 9000, Ghent, Belgium
| | - Kris Gevaert
- Department of Biochemistry, Ghent University, 9000, Ghent, Belgium
- Medical Biotechnology Center, VIB, 9000, Ghent, Belgium
| | - Geert De Jaeger
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| | - Sofie Goormachtig
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- Center for Plant Systems Biology, VIB, 9052, Ghent, Belgium
| |
Collapse
|
271
|
Sánchez-Corrionero Á, Sánchez-Vicente I, González-Pérez S, Corrales A, Krieger-Liszkay A, Lorenzo Ó, Arellano JB. Singlet oxygen triggers chloroplast rupture and cell death in the zeaxanthin epoxidase defective mutant aba1 of Arabidopsis thaliana under high light stress. JOURNAL OF PLANT PHYSIOLOGY 2017; 216:188-196. [PMID: 28709027 DOI: 10.1016/j.jplph.2017.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 06/09/2017] [Accepted: 06/12/2017] [Indexed: 06/07/2023]
Abstract
The two Arabidopsis thaliana mutants, aba1 and max4, were previously identified as sharing a number of co-regulated genes with both the flu mutant and Arabidopsis cell suspension cultures exposed to high light (HL). On this basis, we investigated whether aba1 and max4 were generating high amounts of singlet oxygen (1O2) and activating 1O2-mediated cell death. Thylakoids of aba1 produced twice as much 1O2 as thylakoids of max4 and wild type (WT) plants when illuminated with strong red light. 1O2 was measured using the spin probe 2,2,6,6-tetramethyl-4-piperidone hydrochloride. 77-K chlorophyll fluorescence emission spectra of thylakoids revealed lower aggregation of the light harvesting complex II in aba1. This was rationalized as a loss of connectivity between photosystem II (PSII) units and as the main cause for the high yield of 1O2 generation in aba1. Up-regulation of the 1O2 responsive gene AAA-ATPase was only observed with statistical significant in aba1 under HL. Two early jasmonate (JA)-responsive genes, JAZ1 and JAZ5, encoding for two repressor proteins involved in the negative feedback regulation of JA signalling, were not up-regulated to the WT plant levels. Chloroplast aggregation followed by chloroplast rupture and eventual cell death was observed by confocal imaging of the fluorescence emission of leaf cells of transgenic aba1 plants expressing the chimeric fusion protein SSU-GFP. Cell death was not associated with direct 1O2 cytotoxicity in aba1, but rather with a delayed stress response. In contrast, max4 did not show evidence of 1O2-mediated cell death. In conclusion, aba1 may serve as an alternative model to other 1O2-overproducing mutants of Arabidopsis for investigating 1O2-mediated cell death.
Collapse
Affiliation(s)
- Álvaro Sánchez-Corrionero
- Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA-CSIC), Cordel de merinas 52, Salamanca 37008, Spain; Departamento de Botánica y Fisiología Vegetal, Instituto Hispano-Luso de Investigaciones Agrarias (CIALE), Facultad de Biología, Universidad de Salamanca, C/Río Duero 12, Salamanca 37185, Spain; Department of Biotechnology, Center for Plant Genomics and Biotechnology, Universidad Politécnica de Madrid, Pozuelo de Alarcón 28223, Spain
| | - Inmaculada Sánchez-Vicente
- Departamento de Botánica y Fisiología Vegetal, Instituto Hispano-Luso de Investigaciones Agrarias (CIALE), Facultad de Biología, Universidad de Salamanca, C/Río Duero 12, Salamanca 37185, Spain
| | - Sergio González-Pérez
- Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA-CSIC), Cordel de merinas 52, Salamanca 37008, Spain
| | - Ascensión Corrales
- Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA-CSIC), Cordel de merinas 52, Salamanca 37008, Spain; Departamento de Botánica y Fisiología Vegetal, Instituto Hispano-Luso de Investigaciones Agrarias (CIALE), Facultad de Biología, Universidad de Salamanca, C/Río Duero 12, Salamanca 37185, Spain
| | - Anja Krieger-Liszkay
- Institute for Integrative Biology of the Cell, Commissariat à l'Energie Atomique et aux Energies Alternatives Saclay, Institut des sciences du vivant Frédéric Joliot, Centre National de la Recherche Scientifique, Université Paris-Sud, Université Paris-Saclay, Gif-sur-Yvette Cedex 91198, France
| | - Óscar Lorenzo
- Departamento de Botánica y Fisiología Vegetal, Instituto Hispano-Luso de Investigaciones Agrarias (CIALE), Facultad de Biología, Universidad de Salamanca, C/Río Duero 12, Salamanca 37185, Spain
| | - Juan B Arellano
- Instituto de Recursos Naturales y Agrobiología de Salamanca (IRNASA-CSIC), Cordel de merinas 52, Salamanca 37008, Spain.
| |
Collapse
|
272
|
Saeed W, Naseem S, Ali Z. Strigolactones Biosynthesis and Their Role in Abiotic Stress Resilience in Plants: A Critical Review. FRONTIERS IN PLANT SCIENCE 2017; 8:1487. [PMID: 28894457 PMCID: PMC5581504 DOI: 10.3389/fpls.2017.01487] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/10/2017] [Indexed: 05/03/2023]
Abstract
Strigolactones (SLs), being a new class of plant hormones, play regulatory roles against abiotic stresses in plants. There are multiple hormonal response pathways, which are adapted by the plants to overcome these stressful environmental constraints to reduce the negative impact on overall crop plant productivity. Genetic modulation of the SLs could also be applied as a potential approach in this regard. However, endogenous plant hormones play central roles in adaptation to changing environmental conditions, by mediating growth, development, nutrient allocation, and source/sink transitions. In addition, the hormonal interactions can fine-tune the plant response and determine plant architecture in response to environmental stimuli such as nutrient deprivation and canopy shade. Considerable advancements and new insights into SLs biosynthesis, signaling and transport has been unleashed since the initial discovery. In this review we present basic overview of SL biosynthesis and perception with a detailed discussion on our present understanding of SLs and their critical role to tolerate environmental constraints. The SLs and abscisic acid interplay during the abiotic stresses is particularly highlighted. Main Conclusion: More than shoot branching Strigolactones have uttermost capacity to harmonize stress resilience.
Collapse
Affiliation(s)
| | | | - Zahid Ali
- Department of Biosciences, COMSATS Institute of Information TechnologyIslamabad, Pakistan
| |
Collapse
|
273
|
Zhao Y, Gao J, Im Kim J, Chen K, Bressan RA, Zhu JK. Control of Plant Water Use by ABA Induction of Senescence and Dormancy: An Overlooked Lesson from Evolution. PLANT & CELL PHYSIOLOGY 2017; 58:1319-1327. [PMID: 28961993 DOI: 10.1093/pcp/pcx086] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 06/13/2017] [Indexed: 05/20/2023]
Abstract
Drought stress is a condition that in specific climate contexts results in insufficient water availability and often limits plant productivity through perturbing development and reducing plant growth and survival. Plants use senescence of old leaves and dormancy of buds and seeds to survive extreme environmental conditions. The plant hormone ABA accumulates after drought stress, and increases plant survival by inducing quick responses such as stomatal closure, and long-term responses such as extended growth inhibition, osmotic regulation, accumulation of cuticular wax, senescence, abscission and dormancy. Here we focus on how the long-term ABA responses contribute to plant survival during severe drought stress. Leaf senescence and abscission of older leaves reduce total plant transpirational water loss and increase the transfer of nutrients to meristems and to some storage tissues. Osmotic regulation favors water consumption in sink tissues, and accumulation of cuticular wax helps to seal the plant surface and limits non-stomatal water loss.
Collapse
Affiliation(s)
- Yang Zhao
- Shanghai Center for Plant Stress Biology, and Center of Excellence for Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Jinghui Gao
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaan'xi 712100, China
| | - Jeong Im Kim
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Kong Chen
- Shanghai Center for Plant Stress Biology, and Center of Excellence for Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ray A Bressan
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
| | - Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology, and Center of Excellence for Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai 200032, China
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
| |
Collapse
|
274
|
Abdelrahman M, El-Sayed M, Jogaiah S, Burritt DJ, Tran LSP. The "STAY-GREEN" trait and phytohormone signaling networks in plants under heat stress. PLANT CELL REPORTS 2017; 36:1009-1025. [PMID: 28484792 DOI: 10.1007/s00299-017-2119-y] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 02/07/2017] [Indexed: 05/22/2023]
Abstract
The increasing demand for food and the heavy yield losses in primary crops due to global warming mean that there is an urgent need to improve food security. Therefore, understanding how plants respond to heat stress and its consequences, such as drought and increased soil salinity, has received much attention in plant science community. Plants exhibit stress tolerance, escape or avoidance via adaptation and acclimatization mechanisms. These mechanisms rely on a high degree of plasticity in their cellular metabolism, in which phytohormones play an important role. "STAY-GREEN" is a crucial trait for genetic improvement of several crops, which allows plants to keep their leaves on the active photosynthetic level under stress conditions. Understanding the physiological and molecular mechanisms concomitant with "STAY-GREEN" trait or delayed leaf senescence, as well as those regulating photosynthetic capability of plants under heat stress, with a certain focus on the hormonal pathways, may be a key to break the plateau of productivity associated with adaptation to high temperature. This review will discuss the recent findings that advance our understanding of the mechanisms controlling leaf senescence and hormone signaling cascades under heat stress.
Collapse
Affiliation(s)
- Mostafa Abdelrahman
- Graduate School of Life Sciences, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577, Japan
- Botany Department Faculty of Science, Aswan University, Aswan, 81528, Egypt
| | - Magdi El-Sayed
- Botany Department Faculty of Science, Aswan University, Aswan, 81528, Egypt
| | - Sudisha Jogaiah
- Plant Healthcare and Diagnostic Center, PG Department of Biotechnology and Microbiology, Karnatak University, Dharwad, Karnataka, 580 003, India
| | - David J Burritt
- Department of Botany, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - Lam-Son Phan Tran
- Plant Abiotic Stress Research Group & Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, 70000, Vietnam.
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi, Yokohama, 230-0045, Japan.
| |
Collapse
|
275
|
Ito S, Yamagami D, Umehara M, Hanada A, Yoshida S, Sasaki Y, Yajima S, Kyozuka J, Ueguchi-Tanaka M, Matsuoka M, Shirasu K, Yamaguchi S, Asami T. Regulation of Strigolactone Biosynthesis by Gibberellin Signaling. PLANT PHYSIOLOGY 2017; 174:1250-1259. [PMID: 28404726 PMCID: PMC5462043 DOI: 10.1104/pp.17.00301] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 04/09/2017] [Indexed: 05/06/2023]
Abstract
Strigolactones (SLs) are a class of plant hormones that regulate diverse physiological processes, including shoot branching and root development. They also act as rhizosphere signaling molecules to stimulate the germination of root parasitic weeds and the branching of arbuscular mycorrhizal fungi. Although various types of cross talk between SLs and other hormones have been reported in physiological analyses, the cross talk between gibberellin (GA) and SLs is poorly understood. We screened for chemicals that regulate the level of SLs in rice (Oryza sativa) and identified GA as, to our knowledge, a novel SL-regulating molecule. The regulation of SL biosynthesis by GA is dependent on the GA receptor GID1 and F-box protein GID2. GA treatment also reduced the infection of rice plants by the parasitic plant witchers weed (Striga hermonthica). These data not only demonstrate, to our knowledge, the novel plant hormone cross talk between SL and GA, but also suggest that GA can be used to control parasitic weed infections.
Collapse
Affiliation(s)
- Shinsaku Ito
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Daichi Yamagami
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Mikihisa Umehara
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Atsushi Hanada
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Satoko Yoshida
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Yasuyuki Sasaki
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Shunsuke Yajima
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Junko Kyozuka
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Miyako Ueguchi-Tanaka
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Makoto Matsuoka
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Ken Shirasu
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Shinjiro Yamaguchi
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.)
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.)
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.)
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.)
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.)
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.)
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.)
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.)
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| | - Tadao Asami
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Setagaya, Tokyo 156-8502, Japan (S.I., Y.S., Shu.Y.);
- Department of Applied Biological Chemistry, The University of Tokyo, Bunkyo, Tokyo 113-8657, Japan (S.I., D.Y., T.A.);
- Department of Applied Biosciences, Faculty of Life Sciences, Toyo University, Ora-gun, Gunma 374-0193, Japan (M.U.);
- Graduate School of Life Sciences, Tohoku University, Aoba-ku, Sendai 980-8577, Japan (A.H., Shi.Y.);
- RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (Sa.Y., K.S.);
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0192, Japan (Sa.Y.);
- Department of Agricultural and Environmental Biology, The University of Tokyo, Bunkyo, Tokyo 113-8657 Japan (J.K.);
- Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan (M.U.-T., M.M.);
- Japan Science and Technology Agency , Core Research for Evolutional Science and Technology (CREST), Kawaguchi-shi, Saitama 332-0012 Japan (T.A.); and
- Department of Biochemistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia (T.A.)
| |
Collapse
|
276
|
López-Ráez JA, Shirasu K, Foo E. Strigolactones in Plant Interactions with Beneficial and Detrimental Organisms: The Yin and Yang. TRENDS IN PLANT SCIENCE 2017; 22:527-537. [PMID: 28400173 DOI: 10.1016/j.tplants.2017.03.011] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/13/2017] [Accepted: 03/20/2017] [Indexed: 05/20/2023]
Abstract
Strigolactones (SLs) are plant hormones that have important roles as modulators of plant development. They were originally described as ex planta signaling molecules in the rhizosphere that induce the germination of parasitic plants, a role that was later linked to encouraging the beneficial symbiosis with arbuscular mycorrhizal (AM) fungi. Recently, the focus has shifted to examining the role of SLs in plant-microbe interactions, and has revealed roles for SLs in the association of legumes with nitrogen-fixing rhizobacteria and in interactions with disease-causing pathogens. Here, we examine the role of SLs in plant interactions with beneficial and detrimental organisms, and propose possible future biotechnological applications.
Collapse
Affiliation(s)
- Juan A López-Ráez
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Profesor Albareda 1, Granada 18008, Spain.
| | - Ken Shirasu
- RIKEN Center for Sustainable Resource Science, Yokohama 230-0045, Japan
| | - Eloise Foo
- School of Biological Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| |
Collapse
|
277
|
Sun X, Lian H, Liu X, Zhou S, Liu S. The garlic NF-YC gene, AsNF-YC8, positively regulates non-ionic hyperosmotic stress tolerance in tobacco. PROTOPLASMA 2017; 254:1353-1366. [PMID: 27650870 DOI: 10.1007/s00709-016-1026-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/12/2016] [Indexed: 06/06/2023]
Abstract
To investigate the relationship between nuclear factor Y (NF-Y) and stress tolerance in garlic, we cloned a NF-Y family gene AsNF-YC8 from garlic, which was largely upregulated at dehydrate stage. Expression pattern analyses in garlic revealed that AsNF-YC8 is induced through abscisic acid (ABA) and abiotic stresses, such as NaCl and PEG. Compared with wild-type plants, the overexpressing-AsNF-YC8 transgenic tobacco plants showed higher seed germination rates, longer root length and better plant growth under salt and drought stresses. Under drought stress, the transgenic plants maintained higher relative water content (RWC), net photosynthesis, lower levels of malondialdehyde (MDA), and less ion leakage (IL) than wild-type control plants. These results indicate the high tolerance of the transgenic plants to drought stress compared to the WT. The transgenic tobacco lines accumulated less reactive oxygen species (ROS) and exhibited higher antioxidative enzyme activities compared with wild-type (WT) plants under drought stress, which suggested that the overexpression of AsNF-YC8 improves the antioxidant defense system by regulating the activities of these antioxidant enzymes, which in turn protect transgenic lines against drought stress. These results suggest that AsNF-YC8 plays an important role in tolerance to drought and salt stresses.
Collapse
Affiliation(s)
- Xiudong Sun
- State Key Laboratory of Crop Biology, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Haifeng Lian
- State Key Laboratory of Crop Biology, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Xingchen Liu
- State Key Laboratory of Crop Biology, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Shumei Zhou
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China
| | - Shiqi Liu
- State Key Laboratory of Crop Biology, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (Huanghuai Region), College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, 271018, People's Republic of China.
| |
Collapse
|
278
|
Abstract
Strigolactones are a structurally diverse class of plant hormones that control many aspects of shoot and root growth. Strigolactones are also exuded by plants into the rhizosphere, where they promote symbiotic interactions with arbuscular mycorrhizal fungi and germination of root parasitic plants in the Orobanchaceae family. Therefore, understanding how strigolactones are made, transported, and perceived may lead to agricultural innovations as well as a deeper knowledge of how plants function. Substantial progress has been made in these areas over the past decade. In this review, we focus on the molecular mechanisms, core developmental roles, and evolutionary history of strigolactone signaling. We also propose potential translational applications of strigolactone research to agriculture.
Collapse
Affiliation(s)
- Mark T Waters
- School of Molecular Sciences and Australian Research Council Centre of Excellence in Plant Energy Biology, University of Western Australia, Perth 6009, Australia;
| | - Caroline Gutjahr
- Genetics, Faculty of Biology, LMU Munich, 82152 Martinsried, Germany;
| | - Tom Bennett
- School of Biology, University of Leeds, Leeds LS2 9JT, United Kingdom;
| | - David C Nelson
- Department of Botany and Plant Sciences, University of California, Riverside, California 92521;
| |
Collapse
|
279
|
Cheng X, Floková K, Bouwmeester H, Ruyter-Spira C. The Role of Endogenous Strigolactones and Their Interaction with ABA during the Infection Process of the Parasitic Weed Phelipanche ramosa in Tomato Plants. FRONTIERS IN PLANT SCIENCE 2017; 8:392. [PMID: 28392795 PMCID: PMC5364151 DOI: 10.3389/fpls.2017.00392] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 03/07/2017] [Indexed: 05/29/2023]
Abstract
The root parasitic plant species Phelipanche ramosa, branched broomrape, causes severe damage to economically important crops such as tomato. Its seed germination is triggered by host-derived signals upon which it invades the host root. In tomato, strigolactones (SLs) are the main germination stimulants for P. ramosa. Therefore, the development of low SL-producing lines may be an approach to combat the parasitic weed problem. However, since SLs are also a plant hormone controlling many aspects of plant development, SL deficiency may also have an effect on post-germination stages of the infection process, during the parasite-host interaction. In this study, we show that SL-deficient tomato plants (Solanum lycopersicum; SlCCD8 RNAi lines), infected with pre-germinated P. ramosa seeds, display an increased infection level and faster development of the parasite, which suggests a positive role for SLs in the host defense against parasitic plant invasion. Furthermore, we show that SL-deficient tomato plants lose their characteristic SL-deficient phenotype during an infection with P. ramosa through a reduction in the number of internodes and the number and length of secondary branches. Infection with P. ramosa resulted in increased levels of abscisic acid (ABA) in the leaves and roots of both wild type and SL-deficient lines. Upon parasite infection, the level of the conjugate ABA-glucose ester (ABA-GE) also increased in leaves of both wild type and SL-deficient lines and in roots of one SL-deficient line. The uninfected SL-deficient lines had a higher leaf ABA-GE level than the wild type. Despite the high levels of ABA, stomatal aperture and water loss rate were not affected by parasite infection in the SL-deficient line, while in wild type tomato stomatal aperture and water loss increased upon infection. Future studies are needed to further underpin the role that SLs play in the interaction of hosts with parasitic plants and which other plant hormones interact with the SLs during this process.
Collapse
Affiliation(s)
- Xi Cheng
- Laboratory of Plant Physiology, Wageningen UniversityWageningen, Netherlands
| | - Kristýna Floková
- Laboratory of Plant Physiology, Wageningen UniversityWageningen, Netherlands
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany AS CR and Faculty of Science, Palacký UniversityOlomouc, Czechia
| | - Harro Bouwmeester
- Laboratory of Plant Physiology, Wageningen UniversityWageningen, Netherlands
| | | |
Collapse
|
280
|
Mishra S, Upadhyay S, Shukla RK. The Role of Strigolactones and Their Potential Cross-talk under Hostile Ecological Conditions in Plants. Front Physiol 2017; 7:691. [PMID: 28119634 PMCID: PMC5222854 DOI: 10.3389/fphys.2016.00691] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 12/27/2016] [Indexed: 11/13/2022] Open
Abstract
The changing environment always questions the survival mechanism of life on earth. The plant being special in the sense of their sessile habit need to face many of these environmental fluctuations as they have a lesser escape option. To counter these adverse conditions, plants have developed efficient sensing, signaling, and response mechanism. Among them the role of phytohormones in the management of hostile ecological situations is remarkable. The strigolactone, a newly emerged plant hormone has been identified with many functions such as growth stimulant of parasitic plants, plant architecture determinant, arbuscular mycorrhiza symbiosis promoter, and also in many other developmental and environmental cues. Despite of their immense developmental potential, the strigolactone research in the last few years has also established their significance in adverse environmental condition. In the current review, its significance under drought, salinity, nutrient starvation, temperature, and pathogenic assail has been discussed. This review also opens the research prospects of strigolactone to better manage the crop loss under hostile ecological conditions.
Collapse
Affiliation(s)
- Sonal Mishra
- Biotechnology Division, Central Institute of Medicinal and Aromatic Plants of Council, Scientific and Industrial Research (CSIR) Lucknow, India
| | - Swati Upadhyay
- Biotechnology Division, Central Institute of Medicinal and Aromatic Plants of Council, Scientific and Industrial Research (CSIR) Lucknow, India
| | - Rakesh K Shukla
- Biotechnology Division, Central Institute of Medicinal and Aromatic Plants of Council, Scientific and Industrial Research (CSIR) Lucknow, India
| |
Collapse
|
281
|
An JP, Li R, Qu FJ, You CX, Wang XF, Hao YJ. Ectopic expression of an apple cytochrome P450 gene MdCYPM1 negatively regulates plant photomorphogenesis and stress response in Arabidopsis. Biochem Biophys Res Commun 2017; 483:1-9. [PMID: 28073698 DOI: 10.1016/j.bbrc.2017.01.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 11/29/2022]
Abstract
Cytochrome P450s play an important role in plant growth and are involved in multiple stresses response. However, little is known about the functions of cytochrome P450s in apple. Here, a Malus × domestica cytochrome P450 monooxygenase 1 gene, MdCYPM1, was identified and subsequently cloned from apple 'Gala' (Malus × domestica). To verify the functions of MdCYPM1, we generated transgenic Arabidopsis plants expressing the apple MdCYPM1 gene under the control of the Cauliflower mosaic virus 35S promoter. Four transgenic lines (#3, #5, #7 and #8) were selected for further study. The transgenic plants exhibited a series of skotomorphogenesis phenotypes relative to wild-type controls, such as reduction of the chlorophyll, anthocyanins content and hypocotyls elongation. In addition, overexpression of MdCYPM1 influenced auxin transport and flowering time in transgenic Arabidopsis. Furthermore, MdCYPM1 expression was induced by salt and mannitol treatments, and the transgenic plants were negatively regulated by salinity and osmotic stresses during germination. These results suggest that MdCYPM1 plays a vital role in plant growth and development.
Collapse
Affiliation(s)
- Jian-Ping An
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Rui Li
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Feng-Jia Qu
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Chun-Xiang You
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China
| | - Xiao-Fei Wang
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China.
| | - Yu-Jin Hao
- National Key Laboratory of Crop Biology, National Research Center for Apple Engineering and Technology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, 271018, Shandong, China.
| |
Collapse
|
282
|
Nguyen HM, Sako K, Matsui A, Suzuki Y, Mostofa MG, Ha CV, Tanaka M, Tran LSP, Habu Y, Seki M. Ethanol Enhances High-Salinity Stress Tolerance by Detoxifying Reactive Oxygen Species in Arabidopsis thaliana and Rice. FRONTIERS IN PLANT SCIENCE 2017; 8:1001. [PMID: 28717360 PMCID: PMC5494288 DOI: 10.3389/fpls.2017.01001] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/26/2017] [Indexed: 05/04/2023]
Abstract
High-salinity stress considerably affects plant growth and crop yield. Thus, developing techniques to enhance high-salinity stress tolerance in plants is important. In this study, we revealed that ethanol enhances high-salinity stress tolerance in Arabidopsis thaliana and rice. To elucidate the molecular mechanism underlying the ethanol-induced tolerance, we performed microarray analyses using A. thaliana seedlings. Our data indicated that the expression levels of 1,323 and 1,293 genes were upregulated by ethanol in the presence and absence of NaCl, respectively. The expression of reactive oxygen species (ROS) signaling-related genes associated with high-salinity tolerance was upregulated by ethanol under salt stress condition. Some of these genes encode ROS scavengers and transcription factors (e.g., AtZAT10 and AtZAT12). A RT-qPCR analysis confirmed that the expression levels of AtZAT10 and AtZAT12 as well as AtAPX1 and AtAPX2, which encode cytosolic ascorbate peroxidases (APX), were higher in ethanol-treated plants than in untreated control plants, when exposure to high-salinity stress. Additionally, A. thaliana cytosolic APX activity increased by ethanol in response to salinity stress. Moreover, histochemical analyses with 3,3'-diaminobenzidine (DAB) and nitro blue tetrazolium (NBT) revealed that ROS accumulation was inhibited by ethanol under salt stress condition in A. thaliana and rice, in which DAB staining data was further confirmed by Hydrogen peroxide (H2O2) content. These results suggest that ethanol enhances high-salinity stress tolerance by detoxifying ROS. Our findings may have implications for improving salt-stress tolerance of agriculturally important field-grown crops.
Collapse
Affiliation(s)
- Huong Mai Nguyen
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
- Kihara Institute for Biological Research, Yokohama City UniversityYokohama, Japan
| | - Kaori Sako
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology AgencyKawaguchi, Japan
| | - Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
| | - Yuya Suzuki
- Core Research for Evolutional Science and Technology, Japan Science and Technology AgencyKawaguchi, Japan
- Institute of Agrobiological Sciences, National Agriculture and Food Research OrganizationTsukuba, Japan
| | - Mohammad Golam Mostofa
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
| | - Chien Van Ha
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
| | - Maho Tanaka
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
| | - Lam-Son Phan Tran
- Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
| | - Yoshiki Habu
- Core Research for Evolutional Science and Technology, Japan Science and Technology AgencyKawaguchi, Japan
- Institute of Agrobiological Sciences, National Agriculture and Food Research OrganizationTsukuba, Japan
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science (CSRS)Yokohama, Japan
- Kihara Institute for Biological Research, Yokohama City UniversityYokohama, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology AgencyKawaguchi, Japan
- *Correspondence: Motoaki Seki
| |
Collapse
|
283
|
Ma N, Hu C, Wan L, Hu Q, Xiong J, Zhang C. Strigolactones Improve Plant Growth, Photosynthesis, and Alleviate Oxidative Stress under Salinity in Rapeseed ( Brassica napus L.) by Regulating Gene Expression. FRONTIERS IN PLANT SCIENCE 2017; 8:1671. [PMID: 29021800 PMCID: PMC5623956 DOI: 10.3389/fpls.2017.01671] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 09/11/2017] [Indexed: 05/02/2023]
Abstract
Rapeseed (Brassica napus L.) is a very important edible oil crop in the world, and the production is inhibited by abiotic stresses, such as salinity. Plant hormones can alleviate the stress by regulating the physiological processes and gene expression. To study the plant responses to salinity in combination with GR24, a synthesized strigolactone, the oilseed rape variety (Zhongshuang 11) replications were grown in the pots in a controlled growth chamber under three levels of salinity (0, 100, and 200 mM NaCl) and 0.18 μM GR24 treatments at the seedling stage for 7 days. The results showed that salinity depressed the shoots and roots growth, whereas GR24 improved the growth under salt stress. Leaf chlorophyll contents and gas exchange parameters (net photosynthetic rates, stomatal conductance, intercellular CO2 concentration, and transpiration rate) were also reduced significantly with increasing salinity, and these effects could be partially reversed by GR24 application. Additionally, GR24 treatment significantly increased and decreased the photosystem II quantum yield and non-photochemical quenching, respectively, under salinity stress conditions. The activities of peroxidase and superoxide dismutase increased, and lipid peroxidation measured by the level of malondialdehyde reduced due to GR24 application. The transcriptome analysis of root and shoot was conducted. Three hundred and forty-two common differentially expressed genes (DEGs) after GR24 treatment and 166 special DEGs after GR24 treatment under salinity stress were identified in root and shoot. The DEGs in root were significantly more than that in shoot. Quantitative PCR validated that the stress alleviation was mainly related to the gene expression of tryptophan metabolism, plant hormone signal transduction, and photosynthesis.
Collapse
Affiliation(s)
- Ni Ma
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
- Key Laboratory of Oil Crop Biology, Ministry of Agriculture, Wuhan, China
- *Correspondence: Ni Ma, Chunlei Zhang,
| | - Chao Hu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Lin Wan
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Qiong Hu
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Junlan Xiong
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
| | - Chunlei Zhang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, China
- Key Laboratory of Oil Crop Biology, Ministry of Agriculture, Wuhan, China
- *Correspondence: Ni Ma, Chunlei Zhang,
| |
Collapse
|
284
|
Visentin I, Vitali M, Ferrero M, Zhang Y, Ruyter-Spira C, Novák O, Strnad M, Lovisolo C, Schubert A, Cardinale F. Low levels of strigolactones in roots as a component of the systemic signal of drought stress in tomato. THE NEW PHYTOLOGIST 2016; 212:954-963. [PMID: 27716937 DOI: 10.1111/nph.14190] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 08/04/2016] [Indexed: 05/03/2023]
Abstract
Strigolactones (SL) contribute to drought acclimatization in shoots, because SL-depleted plants are hypersensitive to drought due to stomatal hyposensitivity to abscisic acid (ABA). However, under drought, SL biosynthesis is repressed in roots, suggesting organ specificity in their metabolism and role. Because SL can be transported acropetally, such a drop may also affect shoots, as a systemic indication of stress. We investigated this hypothesis by analysing molecularly and physiologically wild-type (WT) tomato (Solanum lycopersicum) scions grafted onto SL-depleted rootstocks, compared with self-grafted WT and SL-depleted genotypes, during a drought time-course. Shoots receiving few SL from the roots behaved as if under mild stress even if irrigated. Their stomata were hypersensitive to ABA (likely via a localized enhancement of SL synthesis in shoots). Exogenous SL also enhanced stomata sensitivity to ABA. As the partial shift of SL synthesis from roots to shoots mimics what happens under drought, a reduction of root-produced SL might represent a systemic signal unlinked from shootward ABA translocation, and sufficient to prime the plant for better stress avoidance.
Collapse
Affiliation(s)
- Ivan Visentin
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Marco Vitali
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Manuela Ferrero
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Yanxia Zhang
- Laboratory of Plant Physiology, Wageningen University, 6708, PB Wageningen, the Netherlands
| | - Carolien Ruyter-Spira
- Laboratory of Plant Physiology, Wageningen University, 6708, PB Wageningen, the Netherlands
| | - Ondřej Novák
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacky University Olomouc, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Institute of Experimental Botany ASCR & Palacky University Olomouc, Olomouc, Czech Republic
| | - Claudio Lovisolo
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Andrea Schubert
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| | - Francesca Cardinale
- Laboratory of Plant Physiology, DISAFA - Turin University, Grugliasco, 10095, TO, Italy
| |
Collapse
|
285
|
Huang Q, Wang Y. Overexpression of TaNAC2D Displays Opposite Responses to Abiotic Stresses between Seedling and Mature Stage of Transgenic Arabidopsis. FRONTIERS IN PLANT SCIENCE 2016; 7:1754. [PMID: 27933076 PMCID: PMC5120104 DOI: 10.3389/fpls.2016.01754] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Accepted: 11/07/2016] [Indexed: 05/23/2023]
Abstract
Environmental stresses frequently affect plant growth and development, and many genes have been found to be induced by unfavorable environmental conditions. Here, we reported the biological functions of TaNAC2D, a stress-related NAC (NAM, ATAF, and CUC) gene from wheat. TaNAC2D showed transcriptional activator activity in yeast. TaNAC2D-GFP fusion protein was localized in the nucleus of wheat mesophyll protoplasts. TaNAC2D transcript abundance was significantly induced by NaCl, PEG6000, and abscisic acid (ABA) at seedling stage, and repressed by NaCl and PEG6000 at mature plant stage. When TaNAC2D was introduced into Arabidopsis, the 35-day-old soil-grown TaNAC2D-overexpression (TaNAC2D-OX) plants displayed slower stomatal closure, higher water loss rate, and more sensitivity to salt and drought stresses compared with WT plants. In contrast, TaNAC2D-OX seedlings, grown on 1/2 MS medium supplemented with different concentrations of NaCl, Mannitol, and MV, had enhanced tolerances to salt, osmotic and oxidative stresses during seed germination and post-germination periods. The opposite stress-responsive phenotypes of transgenic Arabidopsis were consistent with the expression patterns of TaNAC2D in wheat. Moreover, under high salinity and dehydration conditions, three marker genes, including NCED3, RD29A, and RD29B, were down-regulated in 35-day-old TaNAC2D-OX plants grown in soil and up-regulated in 14-day-old TaNAC2D-OX seedlings grown on 1/2 MS medium. Our results suggest that the change in growth stages and environmental conditions may regulate TaNAC2D's function.
Collapse
Affiliation(s)
- Quanjun Huang
- Key Laboratory of Genetic Development and Germplasm Enhancement of Rare Plants in Three Gorges Area, College of Biology and Pharmacy, China Three Gorges UniversityYichang, China
| | - Yan Wang
- The Genetic Engineering International Cooperation Base of Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Ministry of Education, College of Life Science and Technology, Huazhong University of Science and TechnologyWuhan, China
| |
Collapse
|
286
|
Manzi M, Lado J, Rodrigo MJ, Arbona V, Gómez-Cadenas A. ABA accumulation in water-stressed Citrus roots does not rely on carotenoid content in this organ. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 252:151-161. [PMID: 27717451 DOI: 10.1016/j.plantsci.2016.07.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/26/2016] [Accepted: 07/27/2016] [Indexed: 05/25/2023]
Abstract
Sustained abscisic acid (ABA) accumulation in dehydrated citrus roots depends on the transport from aerial organs. Under this condition, the role of the β,β-carotenoids (ABA precursors) to the de novo synthesis of ABA in roots needs to be clarified since their low availability in this organ restricts its accumulation. To accomplish that, detached citrus roots were exposed to light (to increase their carotenoid content) and subsequently dehydrated (to trigger ABA accumulation). Stress imposition sharply decreased the pool of β,β-carotenoids but, unexpectedly, no concomitant rise in ABA content was observed. Contrastingly, roots of intact plants (with low levels of carotenoids) showed a similar decrease of ABA precursor together with a significant ABA accumulation. Furthermore, upon dehydration both types of roots showed similar upregulation of the key genes involved in biosynthesis of carotenoids and ABA (CsPSY3a; CsβCHX1; CsβCHX2; CsNCED1; CsNCED2), demonstrating a conserved transcriptional response triggered by water stress. Thus, the sharp decrease in root carotenoid levels in response to dehydration should be related to other stress-related signals instead of contributing to ABA biosynthesis. In summary, ABA accumulation in dehydrated-citrus roots largely relies on the presence of the aerial organs and it is independent of the amount of available root β,β-carotenoids.
Collapse
Affiliation(s)
- Matías Manzi
- Ecofisiología y Biotecnología, Dept. Ciències Agraries i del Medi Natural, Universitat Jaume I, E-12071 Castellón de la Plana, Spain
| | - Joanna Lado
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Valencia, Spain
| | - María Jesús Rodrigo
- Instituto de Agroquímica y Tecnología de Alimentos (IATA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Agustín Escardino 7, 46980 Valencia, Spain
| | - Vicent Arbona
- Ecofisiología y Biotecnología, Dept. Ciències Agraries i del Medi Natural, Universitat Jaume I, E-12071 Castellón de la Plana, Spain
| | - Aurelio Gómez-Cadenas
- Ecofisiología y Biotecnología, Dept. Ciències Agraries i del Medi Natural, Universitat Jaume I, E-12071 Castellón de la Plana, Spain.
| |
Collapse
|
287
|
Yousuf PY, Ahmad A, Aref IM, Ozturk M, Ganie AH, Iqbal M. Salt-stress-responsive chloroplast proteins in Brassica juncea genotypes with contrasting salt tolerance and their quantitative PCR analysis. PROTOPLASMA 2016; 253:1565-1575. [PMID: 26638208 DOI: 10.1007/s00709-015-0917-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 11/23/2015] [Indexed: 05/21/2023]
Abstract
Brassica juncea is mainly cultivated in the arid and semi-arid regions of India where its production is significantly affected by soil salinity. Adequate knowledge of the mechanisms underlying the salt tolerance at sub-cellular levels must aid in developing the salt-tolerant plants. A proper functioning of chloroplasts under salinity conditions is highly desirable to maintain crop productivity. The adaptive molecular mechanisms offered by plants at the chloroplast level to cope with salinity stress must be a prime target in developing the salt-tolerant plants. In the present study, we have analyzed differential expression of chloroplast proteins in two Brassica juncea genotypes, Pusa Agrani (salt-sensitive) and CS-54 (salt-tolerant), under the effect of sodium chloride. The chloroplast proteins were isolated and resolved using 2DE, which facilitated identification and quantification of 12 proteins that differed in expression in the salt-tolerant and salt-sensitive genotypes. The identified proteins were related to a variety of chloroplast-associated molecular processes, including oxygen-evolving process, PS I and PS II functioning, Calvin cycle and redox homeostasis. Expression analysis of genes encoding differentially expressed proteins through real time PCR supported our findings with proteomic analysis. The study indicates that modulating the expression of chloroplast proteins associated with stabilization of photosystems and oxidative defence plays imperative roles in adaptation to salt stress.
Collapse
Affiliation(s)
- Peerzada Yasir Yousuf
- Department of Botany, Molecular Ecology Laboratory, Jamia Hamdard, New Delhi, 110062, India
| | - Altaf Ahmad
- Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - Ibrahim M Aref
- Department of Plant Production, College of Food and Agricultural Science, King Saud University, Post Box 2460, Riyadh, 11451, Saudi Arabia
| | - Munir Ozturk
- Department of Biology, Ege University, Izmir, 350000, Turkey
| | - Arshid Hussain Ganie
- Department of Botany, Molecular Ecology Laboratory, Jamia Hamdard, New Delhi, 110062, India
| | - Muhammad Iqbal
- Department of Botany, Molecular Ecology Laboratory, Jamia Hamdard, New Delhi, 110062, India.
| |
Collapse
|
288
|
Microbially Mediated Plant Salt Tolerance and Microbiome-based Solutions for Saline Agriculture. Biotechnol Adv 2016; 34:1245-1259. [PMID: 27587331 DOI: 10.1016/j.biotechadv.2016.08.005] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 08/26/2016] [Accepted: 08/26/2016] [Indexed: 01/15/2023]
Abstract
Soil salinization adversely affects plant growth and has become one of the major limiting factors for crop productivity worldwide. The conventional approach, breeding salt-tolerant plant cultivars, has often failed to efficiently alleviate the situation. In contrast, the use of a diverse array of microorganisms harbored by plants has attracted increasing attention because of the remarkable beneficial effects of microorganisms on plants. Multiple advanced '-omics' technologies have enabled us to gain insights into the structure and function of plant-associated microbes. In this review, we first focus on microbe-mediated plant salt tolerance, in particular on the physiological and molecular mechanisms underlying root-microbe symbiosis. Unfortunately, when introducing such microbes as single strains to soils, they are often ineffective in improving plant growth and stress tolerance, largely due to competition with native soil microbial communities and limited colonization efficiency. Rapid progress in rhizosphere microbiome research has revived the belief that plants may benefit more from association with interacting, diverse microbial communities (microbiome) than from individual members in a community. Understanding how a microbiome assembles in the continuous compartments (endosphere, rhizoplane, and rhizosphere) will assist in predicting a subset of core or minimal microbiome and thus facilitate synthetic re-construction of microbial communities and their functional complementarity and synergistic effects. These developments will open a new avenue for capitalizing on the cultivable microbiome to strengthen plant salt tolerance and thus to refine agricultural practices and production under saline conditions.
Collapse
|
289
|
OaMAX2 of Orobanche aegyptiaca and Arabidopsis AtMAX2 share conserved functions in both development and drought responses. Biochem Biophys Res Commun 2016; 478:521-6. [PMID: 27425246 DOI: 10.1016/j.bbrc.2016.07.065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 07/13/2016] [Indexed: 11/20/2022]
Abstract
Previous studies in Arabidopsis reported that the MAX2 (more axillary growth 2) gene is a component of the strigolactone (SL) signaling pathway, which regulates a wide range of biological processes, from plant growth and development to environmental stress responses. Orobanche aegyptiaca is a harmful parasitic plant for many economically important crops. Seed germination of O. aegyptiaca is very sensitive to SLs, suggesting that O. aegyptiaca may contain components of the SL signaling pathway. To investigate this hypothesis, we identified and cloned a MAX2 ortholog from O. aegyptiaca for complementation analyses using the Arabidopsis Atmax2 mutant. The so-called OaMAX2 gene could rescue phenotypes of the Atmax2 mutant in various tested developmental aspects, including seed germination, shoot branching, leaf senescence and growth and development of hypocotyl, root hair, primary root and lateral root. More importantly, OaMAX2 could enhance the drought tolerance of Atmax2 mutant, suggesting its ability to restore the drought-tolerant phenotype of mutant plants defected in AtMAX2 function. Thus, this study provides genetic evidence that the functions of the MAX2 orthologs, and perhaps the MAX2 signaling pathways, are conserved in parasitic and non-parasitic plants. Furthermore, the results of our study enable us to develop a strategy to fight against parasitic plants by suppressing the MAX signaling, which ultimately leads to enhanced productivity of crop plants.
Collapse
|
290
|
Yang T, Zhang P, Wang C. AtHSPR may function in salt-induced cell death and ER stress in Arabidopsis. PLANT SIGNALING & BEHAVIOR 2016; 11:e1197462. [PMID: 27302034 PMCID: PMC4991323 DOI: 10.1080/15592324.2016.1197462] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Salt stress is a harmful and global abiotic stress to plants and has an adverse effect on all physiological processes of plants. Recently, we cloned and identified a novel AtHSPR (Arabidopsis thaliana Heat Shock Protein Related), which encodes a nuclear-localized protein with ATPase activity, participates in salt and drought tolerance in Arabidopsis. Transcript profiling analysis revealed a differential expression of genes involved in accumulation of reactive oxygen species (ROS), abscisic acid (ABA) signaling, stress response and photosynthesis between athspr mutant and WT under salt stress. Here, we provide further analysis of the data showing the regulation of salt-induced cell death and endoplasmic reticulum (ER) stress response in Arabidopsis and propose a hypothetical model for the role of AtHSPR in the regulation of the salt tolerance in Arabidopsis.
Collapse
Affiliation(s)
- Tao Yang
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Peng Zhang
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Chongying Wang
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou, China
- CONTACT Chongying Wang Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, School of Life Sciences, Lanzhou University, Lanzhou, China
| |
Collapse
|
291
|
Walton A, Stes E, Goeminne G, Braem L, Vuylsteke M, Matthys C, De Cuyper C, Staes A, Vandenbussche J, Boyer FD, Vanholme R, Fromentin J, Boerjan W, Gevaert K, Goormachtig S. The Response of the Root Proteome to the Synthetic Strigolactone GR24 in Arabidopsis. Mol Cell Proteomics 2016; 15:2744-55. [PMID: 27317401 DOI: 10.1074/mcp.m115.050062] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Indexed: 11/06/2022] Open
Abstract
Strigolactones are plant metabolites that act as phytohormones and rhizosphere signals. Whereas most research on unraveling the action mechanisms of strigolactones is focused on plant shoots, we investigated proteome adaptation during strigolactone signaling in the roots of Arabidopsis thaliana. Through large-scale, time-resolved, and quantitative proteomics, the impact of the strigolactone analog rac-GR24 was elucidated on the root proteome of the wild type and the signaling mutant more axillary growth 2 (max2). Our study revealed a clear MAX2-dependent rac-GR24 response: an increase in abundance of enzymes involved in flavonol biosynthesis, which was reduced in the max2-1 mutant. Mass spectrometry-driven metabolite profiling and thin-layer chromatography experiments demonstrated that these changes in protein expression lead to the accumulation of specific flavonols. Moreover, quantitative RT-PCR revealed that the flavonol-related protein expression profile was caused by rac-GR24-induced changes in transcript levels of the corresponding genes. This induction of flavonol production was shown to be activated by the two pure enantiomers that together make up rac-GR24. Finally, our data provide much needed clues concerning the multiple roles played by MAX2 in the roots and a comprehensive view of the rac-GR24-induced response in the root proteome.
Collapse
Affiliation(s)
- Alan Walton
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; ¶Medical Biotechnology Center, VIB, 9000 Ghent, Belgium; ‖Department of Biochemistry, Ghent University, 9000 Ghent, Belgium
| | - Elisabeth Stes
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; ¶Medical Biotechnology Center, VIB, 9000 Ghent, Belgium; ‖Department of Biochemistry, Ghent University, 9000 Ghent, Belgium
| | - Geert Goeminne
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Lukas Braem
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | | | - Cedrick Matthys
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Carolien De Cuyper
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - An Staes
- ¶Medical Biotechnology Center, VIB, 9000 Ghent, Belgium; ‖Department of Biochemistry, Ghent University, 9000 Ghent, Belgium
| | - Jonathan Vandenbussche
- ¶Medical Biotechnology Center, VIB, 9000 Ghent, Belgium; ‖Department of Biochemistry, Ghent University, 9000 Ghent, Belgium
| | - François-Didier Boyer
- ‡‡Institut National de la Recherche Agronomique, Institut Jean-Pierre Bourgin, Unité Mixte de Recherche 1318, Equipe de Recherche Labellisée Centre National de la Recherche Scientifique 3559, Saclay Plant Sciences, 78026 Versailles, France; §§AgroParisTech, Institut Jean-Pierre Bourgin, Unité Mixte de Recherche 1318, Equipe de Recherche Labellisée Centre National de la Recherche Scientifique 3559, Saclay Plant Sciences, 78026 Versailles, France; ¶¶Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, Unité Propre de Recherche 2301, Centre National de la Recherche Scientifique, 91198 Gif-sur-Yvette, France
| | - Ruben Vanholme
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Justine Fromentin
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; ‖‖Laboratoire des Interactions Plantes-Microorganismes, Unité Mixte de Recherche 441, Institut National de la Recherche Agronomique, 31326 Castanet-Tolosan, France; and Laboratoire des Interactions Plantes-Microorganismes, Unité Mixte de Recherche 2594, Centre National de la Recherche Scientifique, 31326 Castanet-Tolosan, France
| | - Wout Boerjan
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Kris Gevaert
- ¶Medical Biotechnology Center, VIB, 9000 Ghent, Belgium; ‖Department of Biochemistry, Ghent University, 9000 Ghent, Belgium;
| | - Sofie Goormachtig
- From the ‡Department of Plant Systems Biology, VIB, 9052 Ghent, Belgium; §Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium;
| |
Collapse
|
292
|
López-Ráez JA. How drought and salinity affect arbuscular mycorrhizal symbiosis and strigolactone biosynthesis? PLANTA 2016; 243:1375-85. [PMID: 26627211 DOI: 10.1007/s00425-015-2435-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 11/16/2015] [Indexed: 05/20/2023]
Abstract
This paper reviews the importance of AM symbiosis in alleviating plant stress under unfavourable environmental conditions, making emphasis on the role of strigolactones. A better understanding of the mechanisms that regulate this beneficial association will increase its potential use as an innovative and sustainable strategy in modern agriculture. Plants are very dynamic systems with a great capacity for adaptation to a constantly changing environment. This phenotypic plasticity is particularly advantageous in areas damaged or subjected to intensive agriculture. Nowadays, global crop production systems are intensifying the impact on natural resources, such as water availability. Therefore, there is an urgent need to find more sustainable alternatives. One of the plant strategies to improve phenotypic plasticity is to establish mutualistic beneficial associations with soil microorganisms, such as the arbuscular mycorrhizal (AM) fungi. The establishment of AM symbiosis requires a complex network of interconnected signalling pathways, in which phytohormones play a key role. Strigolactones (SLs) are plant hormones acting as modulators of the coordinated development under nutrient shortage. SLs also act as host detection signals for AM fungi, favouring symbiosis establishment. In this review, current knowledge on the effect of water-related stresses, such as drought and salinity, in AM symbiosis and in SL production is discussed. Likewise, how the symbiosis helps the host plant to alleviate stress symptoms is also reviewed. Finally, we highlight how interactions between hormonal signalling pathways modulate all these responses, especially in the cross-talk between SLs and abscisic acid (ABA). Understanding the intricate mechanisms that regulate the establishment of AM symbiosis and the plant responses under unfavourable conditions will contribute to implement the use of AM fungi as bioprotective agents against these stresses.
Collapse
Affiliation(s)
- Juan A López-Ráez
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Profesor Albareda 1, 18008, Granada, Spain.
| |
Collapse
|
293
|
Wang L, Hu W, Feng J, Yang X, Huang Q, Xiao J, Liu Y, Yang G, He G. Identification of the ASR gene family from Brachypodium distachyon and functional characterization of BdASR1 in response to drought stress. PLANT CELL REPORTS 2016; 35:1221-34. [PMID: 26905726 DOI: 10.1007/s00299-016-1954-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 02/09/2016] [Indexed: 05/06/2023]
Abstract
A genome-wide investigation identified five B. distachyon ASR genes. BdASR1 may be a transcription factor that confers drought resistance by activating antioxidant systems involving ROS-scavenging enzymes and non-enzymatic antioxidants. Abscisic acid-, stress-, and ripening-induced (ASR) proteins belong to a family of plant-specific, small, and hydrophilic proteins with important roles in responses to abiotic stresses. Although several ASR genes involved in drought tolerance have been characterized in various plant species, the mechanisms regulating ASR activities are still uncharacterized. Additionally, no research on Brachypodium distachyon ASR proteins have been completed. In this study, five B. distachyon BdASR genes were identified through genome-wide analyses. Phylogenetic analyses revealed that BdASR genes originated from tandem and whole genome duplications. Expression analyses revealed the BdASR genes responded to various abiotic stresses, including cold, drought, and salinity, as well as signaling molecules such as abscisic acid, ethylene, and H2O2. BdASR1, which localizes to the nucleus and is transcriptionally active, was functionally characterized. BdASR1 overexpression considerably enhanced drought tolerance in transgenic tobacco plants, which was accompanied by increased superoxide dismutase, catalase, and peroxidase activities, as well as an increased abundance of antioxidants such as ascorbate, tocopherols, and glutathione. BdASR1 may function as a transcription factor that provides drought stress resistance by inducing the production of reactive oxygen species-scavenging enzymes and non-enzymatic antioxidants.
Collapse
Affiliation(s)
- Lianzhe Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Wei Hu
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jialu Feng
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Xiaoyue Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Quanjun Huang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Jiajing Xiao
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Yang Liu
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Guangxiao Yang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Guangyuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
| |
Collapse
|
294
|
Pan X, Zheng H, Zhao J, Xu Y, Li X. ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase mediating shoot branching. PLANTA 2016; 243:1407-1418. [PMID: 26895334 DOI: 10.1007/s00425016-2479-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 01/25/2016] [Indexed: 05/23/2023]
Abstract
ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase that may mediate strigolactone biosynthesis highly responsive to phosphorus deficiency and undergoes negative selection over domestication from Zea ssp. parviglumis to Zea mays. Carotenoid cleavage dioxygenase 7 (CCD7) functions to suppress shoot branching by controlling strigolactone biosynthesis. However, little is known about CCD7 and its functions in maize and its ancestor (Zea ssp. parviglumis) with numerous shoot branches. We found that ZmCCD7 and ZpCCD7 had the same coding sequence, indicating negative selection of the CCD7 gene over domestication from Zea ssp. parviglumis to Zea mays. CCD7 expression was highly responsive to phosphorus deficiency in both species, especially in the meristematic zone and the pericycle of the elongation zone of maize roots. Notably, the crown root had the strongest ZmCCD7 expression in the meristematic zone under phosphorus limitation. Transient expression of GFP tagged ZmCCD7/ZpCCD7 in maize protoplasts indicated their localization in the plastid. Further, ZmCCD7/ZpCCD7 efficiently catalyzed metabolism of six different linear and cyclic carotenoids in E. coli, and generated β-ionone by cleaving β-carotene at the 9,10 (9',10') position. Together with suppression of shoot branching in the max3 mutant by transformation of ZmCCD7/ZpCCD7, our work suggested that ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase mediating strigolactone biosynthesis in maize and its ancestor.
Collapse
Affiliation(s)
- Xiaoying Pan
- Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China
| | - Hongyan Zheng
- Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China
| | - Jianyu Zhao
- Department of Vegetable Sciences, China Agricultural University, Beijing, 100193, China
| | - Yanjun Xu
- Department of Applied Chemistry, China Agricultural University, Beijing, 100193, China
| | - Xuexian Li
- Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
295
|
Pan X, Zheng H, Zhao J, Xu Y, Li X. ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase mediating shoot branching. PLANTA 2016; 243:1407-18. [PMID: 26895334 DOI: 10.1007/s00425-016-2479-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Accepted: 01/25/2016] [Indexed: 05/16/2023]
Abstract
ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase that may mediate strigolactone biosynthesis highly responsive to phosphorus deficiency and undergoes negative selection over domestication from Zea ssp. parviglumis to Zea mays. Carotenoid cleavage dioxygenase 7 (CCD7) functions to suppress shoot branching by controlling strigolactone biosynthesis. However, little is known about CCD7 and its functions in maize and its ancestor (Zea ssp. parviglumis) with numerous shoot branches. We found that ZmCCD7 and ZpCCD7 had the same coding sequence, indicating negative selection of the CCD7 gene over domestication from Zea ssp. parviglumis to Zea mays. CCD7 expression was highly responsive to phosphorus deficiency in both species, especially in the meristematic zone and the pericycle of the elongation zone of maize roots. Notably, the crown root had the strongest ZmCCD7 expression in the meristematic zone under phosphorus limitation. Transient expression of GFP tagged ZmCCD7/ZpCCD7 in maize protoplasts indicated their localization in the plastid. Further, ZmCCD7/ZpCCD7 efficiently catalyzed metabolism of six different linear and cyclic carotenoids in E. coli, and generated β-ionone by cleaving β-carotene at the 9,10 (9',10') position. Together with suppression of shoot branching in the max3 mutant by transformation of ZmCCD7/ZpCCD7, our work suggested that ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase mediating strigolactone biosynthesis in maize and its ancestor.
Collapse
Affiliation(s)
- Xiaoying Pan
- Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China
| | - Hongyan Zheng
- Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China
| | - Jianyu Zhao
- Department of Vegetable Sciences, China Agricultural University, Beijing, 100193, China
| | - Yanjun Xu
- Department of Applied Chemistry, China Agricultural University, Beijing, 100193, China
| | - Xuexian Li
- Department of Plant Nutrition, China Agricultural University, Beijing, 100193, China.
| |
Collapse
|
296
|
Pandey A, Sharma M, Pandey GK. Emerging Roles of Strigolactones in Plant Responses to Stress and Development. FRONTIERS IN PLANT SCIENCE 2016; 7:434. [PMID: 27092155 PMCID: PMC4821062 DOI: 10.3389/fpls.2016.00434] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/21/2016] [Indexed: 05/03/2023]
Abstract
Our environment constantly undergoes changes either natural or manmade affecting growth and development of all the organisms including plants. Plants are sessile in nature and therefore to counter environmental changes such as light, temperature, nutrient and water availability, pathogen, and many others; plants have evolved intricate signaling mechanisms, composed of multiple components including several plant hormones. Research conducted in the last decade has placed Strigolactones (SLs) in the growing list of plant hormones involved in coping with environmental changes. SLs are carotenoid derivatives functioning as both endogenous and exogenous signaling molecules in response to various environmental cues. Initially, SLs were discovered as compounds that are harmful to plants due to their role as stimulants in seed germination of parasitic plants, a more beneficial role in plant growth and development was uncovered much later. SLs are required for maintaining plant architecture by regulating shoot and root growth in response to various external stimuli including arbuscular mycorrhizal fungi, light, nutrients, and temperature. Moreover, a role for SLs has also been recognized during various abiotic and biotic stress conditions making them suitable target for generating genetically engineered crop plants with improved yield. This review discusses the biosynthesis of SLs and their regulatory and physiological roles in various stress conditions. Understanding of detailed signaling mechanisms of SLs will be an important factor for designing genetically modified crops for overcoming the problem of crop loss under stressful conditions.
Collapse
Affiliation(s)
- Amita Pandey
- Department of Plant Molecular Biology, University of DelhiNew Delhi, India
| | | | | |
Collapse
|
297
|
Peláez-Vico MA, Bernabéu-Roda L, Kohlen W, Soto MJ, López-Ráez JA. Strigolactones in the Rhizobium-legume symbiosis: Stimulatory effect on bacterial surface motility and down-regulation of their levels in nodulated plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2016; 245:119-27. [PMID: 26940496 DOI: 10.1016/j.plantsci.2016.01.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/25/2016] [Accepted: 01/30/2016] [Indexed: 05/21/2023]
Abstract
Strigolactones (SLs) are multifunctional molecules acting as modulators of plant responses under nutrient deficient conditions. One of the roles of SLs is to promote beneficial association with arbuscular mycorrhizal (AM) fungi belowground under such stress conditions, mainly phosphorus shortage. Recently, a role of SLs in the Rhizobium-legume symbiosis has been also described. While SLs' function in AM symbiosis is well established, their role in the Rhizobium-legume interaction is still emerging. Recently, SLs have been suggested to stimulate surface motility of rhizobia, opening the possibility that they could also act as molecular cues. The possible effect of SLs in the motility in the alfalfa symbiont Sinorhizobium meliloti was investigated, showing that the synthetic SL analogue GR24 stimulates swarming motility in S. meliloti in a dose-dependent manner. On the other hand, it is known that SL production is regulated by nutrient deficient conditions and by AM symbiosis. Using the model alfalfa-S. meliloti, the impact of phosphorus and nitrogen deficiency, as well as of nodulation on SL production was also assessed. The results showed that phosphorus starvation promoted SL biosynthesis, which was abolished by nitrogen deficiency. In addition, a negative effect of nodulation on SL levels was detected, suggesting a conserved mechanism of SL regulation upon symbiosis establishment.
Collapse
Affiliation(s)
- María A Peláez-Vico
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Lydia Bernabéu-Roda
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Wouter Kohlen
- Department of Plant Sciences, Laboratory of Molecular Biology, Wageningen University, Droevendaalsesteeg 1, 6708 PB, Wageningen, Netherlands
| | - María J Soto
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Profesor Albareda 1, 18008 Granada, Spain
| | - Juan A López-Ráez
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín-Consejo Superior de Investigaciones Científicas (EEZ-CSIC), Profesor Albareda 1, 18008 Granada, Spain.
| |
Collapse
|
298
|
Screpanti C, Fonné-Pfister R, Lumbroso A, Rendine S, Lachia M, De Mesmaeker A. Strigolactone derivatives for potential crop enhancement applications. Bioorg Med Chem Lett 2016; 26:2392-2400. [PMID: 27036522 DOI: 10.1016/j.bmcl.2016.03.072] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Revised: 03/15/2016] [Accepted: 03/17/2016] [Indexed: 01/09/2023]
Abstract
New technologies able to mitigate the main abiotic stresses (i.e., drought, salinity, cold and heat) represent a substantial opportunity to contribute to a sustainable increase of agricultural production. In this context, the recently discovered phytohormone strigolactone is an important area of study which can underpin the quest for new anti-stress technologies. The pleiotropic roles played by strigolactones in plant growth/development and in plant adaptation to environmental changes can pave the way for new innovative crop enhancement applications. Although a significant scientific effort has been dedicated to the strigolactone subject, an updated review with emphasis on the crop protection perspective was missing. This paper aims to analyze the advancement in different areas of the strigolactone domain and the implications for agronomical applications.
Collapse
Affiliation(s)
- Claudio Screpanti
- Syngenta Crop Protection AG, Chemical Research, Schaffhausenstrasse 101, CH-4332, Switzerland
| | - Raymonde Fonné-Pfister
- Syngenta Crop Protection AG, Chemical Research, Schaffhausenstrasse 101, CH-4332, Switzerland
| | - Alexandre Lumbroso
- Syngenta Crop Protection AG, Chemical Research, Schaffhausenstrasse 101, CH-4332, Switzerland
| | - Stefano Rendine
- Syngenta Crop Protection AG, Chemical Research, Schaffhausenstrasse 101, CH-4332, Switzerland
| | - Mathilde Lachia
- Syngenta Crop Protection AG, Chemical Research, Schaffhausenstrasse 101, CH-4332, Switzerland
| | - Alain De Mesmaeker
- Syngenta Crop Protection AG, Chemical Research, Schaffhausenstrasse 101, CH-4332, Switzerland
| |
Collapse
|
299
|
Lopez-Obando M, Ligerot Y, Bonhomme S, Boyer FD, Rameau C. Strigolactone biosynthesis and signaling in plant development. Development 2016; 142:3615-9. [PMID: 26534982 DOI: 10.1242/dev.120006] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Strigolactones (SLs), first identified for their role in parasitic and symbiotic interactions in the rhizosphere, constitute the most recently discovered group of plant hormones. They are best known for their role in shoot branching but, more recently, roles for SLs in other aspects of plant development have emerged. In the last five years, insights into the SL biosynthetic pathway have also been revealed and several key components of the SL signaling pathway have been identified. Here, and in the accompanying poster, we summarize our current understanding of the SL pathway and discuss how this pathway regulates plant development.
Collapse
Affiliation(s)
- Mauricio Lopez-Obando
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, RD10, 78026 Versailles Cedex, France
| | - Yasmine Ligerot
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, RD10, 78026 Versailles Cedex, France Université Paris Sud, Orsay Cedex F-91405, France
| | - Sandrine Bonhomme
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, RD10, 78026 Versailles Cedex, France
| | - François-Didier Boyer
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, RD10, 78026 Versailles Cedex, France Institut de Chimie des Substances Naturelles, CNRS UPR2301, Univ. Paris-Sud, Université Paris-Saclay, 1 av. de la Terrasse, F-91198 Gif-sur-Yvette, France
| | - Catherine Rameau
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, RD10, 78026 Versailles Cedex, France
| |
Collapse
|
300
|
Abstract
Strigolactones are a new class of plant hormones regulating shoot branching and symbiotic interactions with arbuscular mycorrhizal fungi. Studies of branching mutants in herbaceous plants have identified several key genes involved in strigolactone biosynthesis or signaling. The strigolactone signal is perceived by a member of the α/β-fold hydrolase superfamily, known as DWARF14 (D14). However, little is known about D14 genes in the woody perennial plants. Here we report the identification of D14 homologs in the model woody plant Populus trichocarpa. We showed that there are two D14 homologs in P. trichocarpa, designated as PtD14a and PtD14b that are over 95% similar at the amino acid level. Expression analysis indicated that the transcript level of PtD14a is generally more abundant than that of PtD14b. However, only PtD14a was able to complement Arabidopsis d14 mutants, suggesting that PtD14a is the functional D14 ortholog. Amino acid alignment and structural modeling revealed substitutions of several highly conserved amino acids in the PtD14b protein including a phenylalanine near the catalytic triad of D14 proteins. This study lays a foundation for further characterization of strigolactone pathway and its functions in the woody perennial plants.
Collapse
|