1
|
Marks RA. Resurrection plants revisited: bridging the gap between bryophytes and angiosperms to decode desiccation tolerance. THE NEW PHYTOLOGIST 2024; 243:828-829. [PMID: 38548687 DOI: 10.1111/nph.19719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
This article is a Commentary on Zhang et al. (2024), 243: 981–996.
Collapse
Affiliation(s)
- Rose A Marks
- Department of Horticulture, Michigan State University, East Lansing, MI, 48824, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, 48824, USA
- Department of Plant Biology, School of Integrative Biology, University of Illinois, Urbana, IL, 61801, USA
| |
Collapse
|
2
|
Haxim Y, Cao T, Li X, Liu X, Liang Y, Hawar A, Yang R, Zhang D. Autophagy functions as a cytoprotective mechanism by regulating programmed cell death during desiccation in Syntrichia caninervis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108620. [PMID: 38714124 DOI: 10.1016/j.plaphy.2024.108620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 05/09/2024]
Abstract
Desiccation is a state of extreme water loss that is lethal to many plant species. Some desert plants have evolved unique strategies to cope with desiccation stress in their natural environment. Here we present the remarkable stress management mechanism of Syntrichia caninervis, a desert moss species which exhibits an 'A' category of desiccation tolerance. Our research demonstrated that desiccation stress triggers autophagy in S. caninervis while inhibiting Programmed Cell Death (PCD). Silencing of two autophagy-related genes, ATG6 and ATG2, in S. caninervis promoted PCD. Desiccation treatment accelerated cell death in ATG6 and ATG2 gene-silenced S. caninervis. Notably, trehalose was not detected during desiccation, and exogenous application of trehalose cannot activate autophagy. These results suggested that S. caninervis is independent of trehalose accumulation to triggered autophagy. Our results showed that autophagy function as prosurvival mechanism to enhance desiccation tolerance of S. caninervis. Our findings enrich the knowledge of the role of autophagy in plant stress response and may provide new insight into understanding of plant desiccation tolerance.
Collapse
Affiliation(s)
- Yakupjan Haxim
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China
| | - Ting Cao
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoshuang Li
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China
| | - Xiujin Liu
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China
| | - Yuqing Liang
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China
| | - Amangul Hawar
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China
| | - Ruirui Yang
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China
| | - Daoyuan Zhang
- National Key Laboratory of Ecological Security and Sustainable Development in Arid Areas, Chinese Academy of Sciences, Urumqi, 800311, China; State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Geography and Ecology, Chinese Academy of Sciences, Urumqi, 830011, China; Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830000, Urumqi, China; Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, 838008, China.
| |
Collapse
|
3
|
Asad MAU, Yan Z, Zhou L, Guan X, Cheng F. How abiotic stresses trigger sugar signaling to modulate leaf senescence? PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108650. [PMID: 38653095 DOI: 10.1016/j.plaphy.2024.108650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 04/05/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Plants have evolved the adaptive capacity to mitigate the negative effect of external adversities at chemical, molecular, cellular, and physiological levels. This capacity is conferred by triggering the coordinated action of internal regulatory factors, in which sugars play an essential role in the regulating chloroplast degradation and leaf senescence under various stresses. In this review, we summarize the recent findings on the senescent-associated changes in carbohydrate metabolism and its relation to chlorophyl degradation, oxidative damage, photosynthesis inhibition, programmed cell death (PCD), and sink-source relation as affected by abiotic stresses. The action of sugar signaling in regulating the initiation and progression of leaf senescence under abiotic stresses involves interactions with various plant hormones, reactive oxygen species (ROS) burst, and protein kinases. This discussion aims to elucidate the complex regulatory network and molecular mechanisms that underline sugar-induced leaf senescence in response to various abiotic stresses. The imperative role of sugar signaling in regulating plant stress responses potentially enables the production of crop plants with modified sugar metabolism. This, in turn, may facilitate the engineering of plants with improved stress responses, optimal life span and higher yield achievement.
Collapse
Affiliation(s)
- Muhmmad Asad Ullah Asad
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Zhang Yan
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Lujian Zhou
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Xianyue Guan
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Fangmin Cheng
- Institute of Crop Science, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China; Collaborative Innovation Centre for Modern Crop Production Co-sponsored by Province and Ministry, Nanjing, China.
| |
Collapse
|
4
|
Luo Y, Wang K, Zhu L, Zhang N, Si H. StMAPKK5 Positively Regulates Response to Drought and Salt Stress in Potato. Int J Mol Sci 2024; 25:3662. [PMID: 38612475 PMCID: PMC11011605 DOI: 10.3390/ijms25073662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/15/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
MAPKKs, as one of the main members of the mitogen-activated protein kinase (MAPK) cascade pathway, are located in the middle of the cascade and are involved in many physiological processes of plant growth and development, as well as stress tolerance. Previous studies have found that StMAPKK5 is responsive to drought and salt stress. To further investigate the function and regulatory mechanism of StMAPKK5 in potato stress response, potato variety 'Atlantic' was subjected to drought and NaCl treatments, and the expression of the StMAPKK5 gene was detected by qRT-PCR. StMAPKK5 overexpression and RNA interference-mediated StMAPKK5 knockdown potato plants were constructed. The relative water content, superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) activities, as well as proline (Pro) and malondialdehyde (MDA) contents of plant leaves, were also assayed under drought and NaCl stress. The StMAPKK5 interacting proteins were identified and validated by yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC). The results showed that the expression of StMAPKK5 was significantly up-regulated under drought and NaCl stress conditions. The StMAPKK5 protein was localized in the nucleus, cytoplasm, and cell membrane. The expression of StMAPKK5 affected the relative water content, the enzymatic activities of SOD, CAT, and POD, and the proline and MDA contents of potatoes under drought and salt stress conditions. These results suggest that StMAPKK5 plays a significant role in regulating drought and salt tolerance in potato crop. Yeast two-hybrid (Y2H) screening identified four interacting proteins: StMYB19, StZFP8, StPUB-like, and StSKIP19. BiFC confirmed the authenticity of the interactions. These findings suggest that StMAPKK5 is crucial for potato growth, development, and response to adversity.
Collapse
Affiliation(s)
- Yu Luo
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.); (K.W.); (N.Z.)
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
| | - Kaitong Wang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.); (K.W.); (N.Z.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Liping Zhu
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
| | - Ning Zhang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.); (K.W.); (N.Z.)
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
| | - Huaijun Si
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (Y.L.); (K.W.); (N.Z.)
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
| |
Collapse
|
5
|
Vieira EA, Gaspar M, Caldeira CF, Munné-Bosch S, Braga MR. Desiccation tolerance in the resurrection plant Barbacenia graminifolia involves changes in redox metabolism and carotenoid oxidation. FRONTIERS IN PLANT SCIENCE 2024; 15:1344820. [PMID: 38425802 PMCID: PMC10902171 DOI: 10.3389/fpls.2024.1344820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 01/26/2024] [Indexed: 03/02/2024]
Abstract
Desiccation tolerance in vegetative tissues enables resurrection plants to remain quiescent under severe drought and rapidly recover full metabolism once water becomes available. Barbacenia graminifolia is a resurrection plant that occurs at high altitudes, typically growing on rock slits, exposed to high irradiance and limited water availability. We analyzed the levels of reactive oxygen species (ROS) and antioxidants, carotenoids and its cleavage products, and stress-related phytohormones in fully hydrated, dehydrated, and rehydrated leaves of B. graminifolia. This species exhibited a precise adjustment of its antioxidant metabolism to desiccation. Our results indicate that this adjustment is associated with enhanced carotenoid and apocarotenoids, α-tocopherol and compounds of ascorbate-glutathione cycle. While α-carotene and lutein increased in dried-leaves suggesting effective protection of the light-harvesting complexes, the decrease in β-carotene was accompanied of 10.2-fold increase in the content of β-cyclocitral, an apocarotenoid implicated in the regulation of abiotic stresses, compared to hydrated plants. The principal component analysis showed that dehydrated plants at 30 days formed a separate cluster from both hydrated and dehydrated plants for up to 15 days. This regulation might be part of the protective metabolic strategies employed by this resurrection plant to survive water scarcity in its inhospitable habitat.
Collapse
Affiliation(s)
| | - Marilia Gaspar
- Biodiversity Conservation Center, Institute of Environmental Research, São Paulo, Brazil
| | | | - Sergi Munné-Bosch
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Faculty of Biology, University of Barcelona, Barcelona, Spain
| | - Marcia Regina Braga
- Biodiversity Conservation Center, Institute of Environmental Research, São Paulo, Brazil
| |
Collapse
|
6
|
Yang Q, Yang R, Gao B, Liang Y, Liu X, Li X, Zhang D. Metabolomic Analysis of the Desert Moss Syntrichia caninervis Provides Insights into Plant Dehydration and Rehydration Response. PLANT & CELL PHYSIOLOGY 2023; 64:1419-1432. [PMID: 37706231 DOI: 10.1093/pcp/pcad110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 09/13/2023] [Indexed: 09/15/2023]
Abstract
Desiccation-tolerant (DT) plants can survive extreme dehydration and tolerate the loss of up to 95% of their water content, making them ideal systems to determine the mechanism behind extreme drought stress and identify potential approaches for developing drought-tolerant crops. The desert moss Syntrichia caninervis is an emerging model for extreme desiccation tolerance that has benefited from high-throughput sequencing analyses, allowing identification of stress-tolerant genes; however, its metabolic response to desiccation is unknown. A liquid chromatography-mass spectrometry analysis of S. caninervis at six dehydration-rehydration stages revealed 912 differentially abundant compounds, belonging to 93 metabolic classes. Many (256) metabolites accumulated during rehydration in S. caninervis, whereas only 71 accumulated during the dehydration period, in contrast to the pattern observed in vascular DT plants. During dehydration, nitrogenous amino acids (l-glutamic acid and cysteinylglycine), alkaloids (vinleurosine) and steroids (physalin D) accumulated, whereas glucose 6-phosphate decreased. During rehydration, γ-aminobutyric acid, glucose 6-phosphate and flavonoids (karanjin and aromadendrin) accumulated, as did the plant hormones 12-oxo phytodienoic acid (12-OPDA) and trans-zeatin riboside. The contents ofl-arginine, maltose, turanose, lactulose and sucrose remained high throughout dehydration-rehydration. Syntrichia caninervis thus accumulates antioxidants to scavenge reactive oxygen species, accumulating nitrogenous amino acids and cytoprotective metabolites and decreasing energy metabolism to enter a protective state from dehydration-induced damage. During subsequent rehydration, many metabolites rapidly accumulated to prevent oxidative stress and restore physiological activities while repairing cells, representing a more elaborate rehydration repair mechanism than vascular DT plants, with a faster and greater accumulation of metabolites. This metabolic kinetics analysis in S. caninervis deepens our understanding of its dehydration mechanisms and provides new insights into the different strategies of plant responses to dehydration and rehydration.
Collapse
Affiliation(s)
- Qilin Yang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruirui Yang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Bei Gao
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Beijing 830011, China
| | - Yuqing Liang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Beijing 830011, China
| | - Xiujin Liu
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Beijing 830011, China
| | - Xiaoshuang Li
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Beijing 830011, China
- Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, Beijing 838008, China
| | - Daoyuan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Laboratory of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Beijing 830011, China
- Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan, Beijing 838008, China
| |
Collapse
|
7
|
Okemo PA, Njaci I, Kim YM, McClure RS, Peterson MJ, Beliaev AS, Hixson KK, Mundree S, Williams B. Tripogon loliiformis tolerates rapid desiccation after metabolic and transcriptional priming during initial drying. Sci Rep 2023; 13:20613. [PMID: 37996547 PMCID: PMC10667271 DOI: 10.1038/s41598-023-47456-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023] Open
Abstract
Crop plants and undomesticated resilient species employ different strategies to regulate their energy resources and growth. Most crop species are sensitive to stress and prioritise rapid growth to maximise yield or biomass production. In contrast, resilient plants grow slowly, are small, and allocate their resources for survival in challenging environments. One small group of plants, termed resurrection plants, survive desiccation of their vegetative tissue and regain full metabolic activity upon watering. However, the precise molecular mechanisms underlying this extreme tolerance remain unknown. In this study, we employed a transcriptomics and metabolomics approach, to investigate the mechanisms of desiccation tolerance in Tripogon loliiformis, a modified desiccation-tolerant plant, that survives gradual but not rapid drying. We show that T. loliiformis can survive rapid desiccation if it is gradually dried to 60% relative water content (RWC). Furthermore, the gene expression data showed that T. loliiformis is genetically predisposed for desiccation in the hydrated state, as evidenced by the accumulation of MYB, NAC, bZIP, WRKY transcription factors along with the phytohormones, abscisic acid, salicylic acid, amino acids (e.g., proline) and TCA cycle sugars during initial drying. Through network analysis of co-expressed genes, we observed differential responses to desiccation between T. loliiformis shoots and roots. Dehydrating shoots displayed global transcriptional changes across broad functional categories, although no enrichment was observed during drying. In contrast, dehydrating roots showed distinct network changes with the most significant differences occurring at 40% RWC. The cumulative effects of the early stress responses may indicate the minimum requirements of desiccation tolerance and enable T. loliiformis to survive rapid drying. These findings potentially hold promise for identifying biotechnological solutions aimed at developing drought-tolerant crops without growth and yield penalties.
Collapse
Affiliation(s)
- Pauline A Okemo
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, QLD, Australia
| | - Isaac Njaci
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
| | - Young-Mo Kim
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Ryan S McClure
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | | | - Alexander S Beliaev
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
- Physical and Chemical Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Kim K Hixson
- Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
- Physical and Chemical Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Sagadevan Mundree
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
| | - Brett Williams
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia.
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia.
| |
Collapse
|
8
|
Cao L, Ma C, Ye F, Pang Y, Wang G, Fahim AM, Lu X. Genome-wide identification of NF-Y gene family in maize ( Zea mays L.) and the positive role of ZmNF-YC12 in drought resistance and recovery ability. FRONTIERS IN PLANT SCIENCE 2023; 14:1159955. [PMID: 37265635 PMCID: PMC10229843 DOI: 10.3389/fpls.2023.1159955] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/17/2023] [Indexed: 06/03/2023]
Abstract
Nuclear factor Y (NF-Y) genes play important roles in many biological processes, such as leaf growth, nitrogen nutrition, and drought resistance. However, the biological functions of these transcription factor family members have not been systematically analyzed in maize. In the present study, a total of 52 ZmNF-Y genes were identified and classified into three groups in the maize genome. An analysis of the evolutionary relationship, gene structure, and conserved motifs of these genes supports the evolutionary conservation of NF-Y family genes in maize. The tissue expression profiles based on RNA-seq data showed that all genes apart from ZmNF-Y16, ZmNF-YC15, and ZmNF-YC17 were expressed in different maize tissues. A weighted correlation network analysis was conducted and a gene co expression network method was used to analyze the transcriptome sequencing results; six core genes responding to drought and rewatering were identified. A real time fluorescence quantitative analysis showed that these six genes responded to high temperature, drought, high salt, and abscisic acid (ABA) treatments, and subsequent restoration to normal levels. ZmNF-YC12 was highly induced by drought and rewatering treatments. The ZmNF-YC12 protein was localized in the nucleus, and the Gal4-LexA/UAS system and a transactivation analysis demonstrated that ZmNF-YC12 in maize (Zea mays L.) is a transcriptional activator that regulates drought resistance and recovery ability. Silencing ZmNF-YC12 reduced net photosynthesis, chlorophyll content, antioxidant (superoxide dismutase, catalase, peroxidase and ascorbate peroxidase) system activation, and soluble protein and proline contents; it increased the malondialdehyde content, the relative water content, and the water loss rate, which weakened drought resistance and the recoverability of maize. These results provide insights into understanding the evolution of ZmNF-Y family genes in maize and their potential roles in genetic improvement. Our work provides a foundation for subsequent functional studies of the NF-Y gene family and provides deep insights into the role of the ZmNF-YC12 regulatory network in controlling drought resistance and the recoverability of maize.
Collapse
Affiliation(s)
- Liru Cao
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou, China
- The Shennong Laboratory, Zhengzhou Henan, China
| | - Chenchen Ma
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Feiyu Ye
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Yunyun Pang
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Guorui Wang
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Abbas Muhammad Fahim
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
| | - Xiaomin Lu
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Zhengzhou, China
- The Shennong Laboratory, Zhengzhou Henan, China
| |
Collapse
|
9
|
Yang L, Zhang N, Wang K, Zheng Z, Wei J, Si H. CBL-Interacting Protein Kinases 18 ( CIPK18) Gene Positively Regulates Drought Resistance in Potato. Int J Mol Sci 2023; 24:ijms24043613. [PMID: 36835025 PMCID: PMC9964222 DOI: 10.3390/ijms24043613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 02/16/2023] Open
Abstract
Sensor-responder complexes comprising calcineurin B-like (CBL) proteins and CBL-interacting protein kinases (CIPKs) are plant-specific Ca2+ receptors, and the CBL-CIPK module is widely involved in plant growth and development and a large number of abiotic stress response signaling pathways. In this study, the potato cv. "Atlantic" was subjected to a water deficiency treatment and the expression of StCIPK18 gene was detected by qRT-PCR. The subcellular localization of StCIPK18 protein was observed by a confocal laser scanning microscope. The StCIPK18 interacting protein was identified and verified by yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC). StCIPK18 overexpression and StCIPK18 knockout plants were constructed. The phenotypic changes under drought stress were indicated by water loss rate, relative water content, MDA and proline contents, and CAT, SOD and POD activities. The results showed that StCIPK18 expression was upregulated under drought stress. StCIPK18 is localized in the cell membrane and cytoplasm. Y2H shows the interaction between StCIPK18 and StCBL1, StCBL4, StCBL6 and StCBL8. BiFC further verifies the reliability of the interaction between StCIPK18 and StCBL4. Under drought stress, StCIPK18 overexpression decreased the water loss rate and MDA, and increased RWC, proline contents and CAT, SOD and POD activities; however, StCIPK18 knockout showed opposite results, compared with the wild type, in response to drought stress. The results can provide information for the molecular mechanism of the StCIPK18 regulating potato response to drought stress.
Collapse
Affiliation(s)
- Liang Yang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Ning Zhang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- Correspondence:
| | - Kaitong Wang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Zhiyong Zheng
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Jingjing Wei
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Huaijun Si
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| |
Collapse
|
10
|
Calone R, Mircea DM, González-Orenga S, Boscaiu M, Lambertini C, Barbanti L, Vicente O. Recovery from Salinity and Drought Stress in the Perennial Sarcocornia fruticosa vs. the Annual Salicornia europaea and S. veneta. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11081058. [PMID: 35448785 PMCID: PMC9031041 DOI: 10.3390/plants11081058] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/01/2022] [Accepted: 04/09/2022] [Indexed: 06/01/2023]
Abstract
Current agricultural problems, such as the decline of freshwater and fertile land, foster saline agriculture development. Salicornia and Sarcocornia species, with a long history of human consumption, are ideal models for developing halophyte crops. A greenhouse experiment was set up to compare the response of the perennial Sarcocornia fruticosa and the two annual Salicornia europaea and S. veneta to 30 days of salt stress (watering with 700 mM NaCl) and water deficit (complete withholding of irrigation) separate treatments, followed by 15 days of recovery. The three species showed high tolerance to salt stress, based on the accumulation of ions (Na+, Cl-, Ca2+) in the shoots and the synthesis of organic osmolytes. These defence mechanisms were partly constitutive, as active ion transport to the shoots and high levels of glycine betaine were also observed in non-stressed plants. The three halophytes were sensitive to water stress, albeit S. fruticosa to a lesser extent. In fact, S. fruticosa showed a lower reduction in shoot fresh weight than S. europaea or S. veneta, no degradation of photosynthetic pigments, a significant increase in glycine betaine contents, and full recovery after the water stress treatment. The observed differences could be due to a better adaptation of S. fruticosa to a drier natural habitat, as compared to the two Salicornia species. However, a more gradual stress-induced senescence in the perennial S. fruticosa may contribute to greater drought tolerance in this species.
Collapse
Affiliation(s)
- Roberta Calone
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, Viale Fanin 44, 40127 Bologna, Italy;
- Institute for Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, Spain; (D.-M.M.); (S.G.-O.); (O.V.)
| | - Diana-Maria Mircea
- Institute for Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, Spain; (D.-M.M.); (S.G.-O.); (O.V.)
- Department of Horticulture and Landscape, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5 Manastur St., 400372 Cluj-Napoca, Romania
| | - Sara González-Orenga
- Institute for Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, Spain; (D.-M.M.); (S.G.-O.); (O.V.)
| | - Monica Boscaiu
- Mediterranean Agroforestry Institute (IAM), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, Spain;
| | - Carla Lambertini
- Dipartimento di Bioscienze, Università di Milano, Via Celoria 26, 20133 Milano, Italy;
| | - Lorenzo Barbanti
- Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, Viale Fanin 44, 40127 Bologna, Italy;
| | - Oscar Vicente
- Institute for Conservation and Improvement of Valencian Agrodiversity (COMAV), Universitat Politècnica de València, Camino de Vera 14, 46022 Valencia, Spain; (D.-M.M.); (S.G.-O.); (O.V.)
| |
Collapse
|
11
|
Oung HMO, Mukhopadhyay R, Svoboda V, Charuvi D, Reich Z, Kirchhoff H. Differential response of the photosynthetic machinery to dehydration in older and younger resurrection plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:1566-1580. [PMID: 34747457 DOI: 10.1093/jxb/erab485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
A group of vascular plants called homoiochlorophyllous resurrection plants evolved unique capabilities to protect their photosynthetic machinery against desiccation-induced damage. This study examined whether the ontogenetic status of the resurrection plant Craterostigma pumilum has an impact on how the plant responds to dehydration at the thylakoid membrane level to prepare cells for the desiccated state. Thus, younger plants (<4 months) were compared with their older (>6 months) counterparts. Ultrastructural analysis provided evidence that younger plants suppressed senescence-like programs that are realized in older plants. During dehydration, older plants degrade specific subunits of the photosynthetic apparatus such as the D1 subunit of PSII and subunits of the cytochrome b6f complex. The latter leads to a controlled down-regulation of linear electron transport. In contrast, younger plants increased photoprotective high-energy quenching mechanisms and maintained a high capability to replace damaged D1 subunits. It follows that depending on the ontogenetic state, either more degradation-based or more photoprotective mechanisms are employed during dehydration of Craterostigma pumilum.
Collapse
Affiliation(s)
- Hui Min Olivia Oung
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Roma Mukhopadhyay
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Vaclav Svoboda
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| | - Dana Charuvi
- Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon LeZion 7505101, Israel
| | - Ziv Reich
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Helmut Kirchhoff
- Institute of Biological Chemistry, Washington State University, Pullman, WA 99164, USA
| |
Collapse
|
12
|
Li S, Zhang N, Zhu X, Ma R, Liu S, Wang X, Yang J, Si H. Genome-Wide Analysis of NF-Y Genes in Potato and Functional Identification of StNF-YC9 in Drought Tolerance. FRONTIERS IN PLANT SCIENCE 2021; 12:749688. [PMID: 34858457 PMCID: PMC8631771 DOI: 10.3389/fpls.2021.749688] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/21/2021] [Indexed: 06/03/2023]
Abstract
The nuclear factor Y (NF-Y) family is comprised of transcription factors that have been implicated in multiple plant biological processes. However, little is known about this family in potato. In the present study, a total of 41 StNF-Y genes were identified in the potato genome. In addition, the phylogenetic, gene structure, motif, and chromosomal location of this family were analyzed. The tissue expression profiles based on RNA-seq data showed that 27 StNF-Y genes had tissue-specific expression, while the remaining 14 had low expression in all tissues. Publicly available transcriptomics data from various abiotic stresses revealed several stress-responsive StNF-Y genes, which were further verified via quantitative real-time polymerase chain reaction experiments. Furthermore, the StNF-YC9 gene was highly induced by dehydration and drought treatments. StNF-YC9 protein was mainly localized in the nucleus and cytoplasmic membrane. Overexpressing StNF-YC9 potato lines (OxStNF-YC9) had significantly increased in root length and exhibited stronger stomatal closure in potato treated by polyethylene-glycol and abscisic acid. In addition, OxStNF-YC9 lines had higher photosynthetic rates and decreased water loss under short-term drought stress compared to wild-type plants. During long-term drought stress, OxStNF-YC9 lines had higher proline levels, lower malondialdehyde content, and increased activity of several antioxidant enzymes, including superoxide dismutase, catalase, and peroxidase. This study increased our understanding of the StNF-Y gene and suggested that StNF-YC9 played an important role in drought tolerance by increased the photosynthesis rate, antioxidant enzyme activity, and proline accumulation coupled to lowered malondialdehyde accumulation in potato.
Collapse
Affiliation(s)
- Shigui Li
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Ning Zhang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Xi Zhu
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Rui Ma
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Shengyan Liu
- College of Agronomy, Gansu Agricultural University, Lanzhou, China
| | - Xiao Wang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Jiangwei Yang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
| | - Huaijun Si
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou, China
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, China
| |
Collapse
|
13
|
Gechev T, Lyall R, Petrov V, Bartels D. Systems biology of resurrection plants. Cell Mol Life Sci 2021; 78:6365-6394. [PMID: 34390381 PMCID: PMC8558194 DOI: 10.1007/s00018-021-03913-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/08/2021] [Accepted: 08/03/2021] [Indexed: 12/16/2022]
Abstract
Plant species that exhibit vegetative desiccation tolerance can survive extreme desiccation for months and resume normal physiological activities upon re-watering. Here we survey the recent knowledge gathered from the sequenced genomes of angiosperm and non-angiosperm desiccation-tolerant plants (resurrection plants) and highlight some distinct genes and gene families that are central to the desiccation response. Furthermore, we review the vast amount of data accumulated from analyses of transcriptomes and metabolomes of resurrection species exposed to desiccation and subsequent rehydration, which allows us to build a systems biology view on the molecular and genetic mechanisms of desiccation tolerance in plants.
Collapse
Affiliation(s)
- Tsanko Gechev
- Center of Plant Systems Biology and Biotechnology, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria.
- Department of Plant Physiology and Molecular Biology, University of Plovdiv, 24 Tsar Assen Str., Plovdiv, 4000, Bulgaria.
| | - Rafe Lyall
- Center of Plant Systems Biology and Biotechnology, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria
| | - Veselin Petrov
- Center of Plant Systems Biology and Biotechnology, 139 Ruski Blvd., Plovdiv, 4000, Bulgaria
- Department of Plant Physiology, Biochemistry and Genetics, Agricultural University - Plovdiv, 12, Mendeleev Str, Plovdiv, 4000, Bulgaria
| | | |
Collapse
|
14
|
Feng X, Yang Z, Wang X. Tissue-specific transcriptome analysis of drought stress and rehydration in Trachycarpus fortunei at seedling. PeerJ 2021; 9:e10933. [PMID: 33850641 PMCID: PMC8019532 DOI: 10.7717/peerj.10933] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 01/21/2021] [Indexed: 11/20/2022] Open
Abstract
Background Trachycarpus fortunei has broad economic benefits and excellent drought resistance; however, its drought response, adaptation, and recovery processes remain unclear. Methodology In this study, the response, tolerance, and recovery processes of T. fortunei leaves and roots under drought stress were determined by Illumina sequencing. Results Under drought stress, T. fortunei reduced its light-capturing ability and composition of its photosynthetic apparatus, thereby reducing photosynthesis to prevent photo-induced chloroplast reactive oxygen damage during dehydration. The phenylpropanoid biosynthesis process in the roots was suppressed, DHNs, LEA, Annexin D2, NAC, and other genes, which may play important roles in protecting the cell membrane’s permeability in T. fortunei root tissues. During the rehydration phase, fatty acid biosynthesis in T. fortunei roots was repressed. Weighted correlation network analysis (WGCNA) screened modules that were positively or negatively correlated with physiological traits. The real-time quantitative PCR (RT-qPCR) results indicated the reliability of the transcriptomic data. Conclusion These findings provide valuable information for identifying important components in the T. fortunei drought signaling network and enhances our understanding of the molecular mechanisms by which T. fortunei responds to drought stress.
Collapse
Affiliation(s)
- Xiao Feng
- College of Forestry, Guizhou University, Guiyang, Huaxi, China.,Institute for Forest Resources & Environment of Guizhou, Guizhou University, Guiyang, Huaxi, China.,Key laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, Guizhou University, Guiyang, Huaxi, China.,Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, Huaxi, China
| | - Zhao Yang
- College of Forestry, Guizhou University, Guiyang, Huaxi, China.,Institute for Forest Resources & Environment of Guizhou, Guizhou University, Guiyang, Huaxi, China.,Key laboratory of Forest Cultivation in Plateau Mountain of Guizhou Province, Guizhou University, Guiyang, Huaxi, China.,Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou University, Guiyang, Huaxi, China
| | - Xiurong Wang
- College of Forestry, Guizhou University, Guiyang, Huaxi, China
| |
Collapse
|
15
|
Okemo P, Long H, Cheng Y, Mundree S, Williams B. Stachyose triggers apoptotic like cell death in drought sensitive but not resilient plants. Sci Rep 2021; 11:7099. [PMID: 33782503 PMCID: PMC8007635 DOI: 10.1038/s41598-021-86559-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 02/24/2021] [Indexed: 02/01/2023] Open
Abstract
Programmed cell death (PCD) is one of the most intensively researched fields in modern mammalian biology with roles in cancer, aging, diabetes and numerous neurodegenerative diseases. It is becoming increasingly clear that PCD also plays significant roles in plant defence and responses to the environment. Given their unique ability to tolerate desiccation (cells remain viable even after they've lost 95% of their water), resurrection plants make ideal models to study the regulation of plant PCD pathways. Previously, we showed that the Australian resurrection plant, Tripogon loliiformis, suppresses plant PCD, via trehalose-mediated activation of autophagy pathways, during drying. In the present study, we created a full-length T. loliiformis cDNA library, performed a large-scale Agrobacterium screen for improved salinity tolerance and identified Stachyose synthase (TlStach) as a potential candidate for improving stress tolerance. Tripogon loliiformis shoots accumulate stachyose synthase transcripts and stachyose during drying. Attempts to generate transgenic plants expressing TlStach failed and were consistent with previous reports in mammals that demonstrated stachyose-mediated induction of apoptosis. Using a combination of transcriptomics, metabolomics and cell death assays (TUNNEL and DNA laddering), we investigated whether stachyose induces apoptotic-like cell death in T. loliiformis. We show that stachyose triggers the formation of the hallmarks of plant apoptotic-like cell death in the desiccation sensitive Nicotiana benthamiana but not the resilient T. loliiformis. These findings suggest that T. loliiformis suppresses stachyose-mediated apoptotic-like cell death and provides insights on the role of sugar metabolism and plant PCD pathways. A better understanding of how resilient plants regulate sugar metabolism and PCD pathways may facilitate future targeting of plant metabolic pathways for increased stress tolerance.
Collapse
Affiliation(s)
- Pauline Okemo
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
| | - Hao Long
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
| | - Yen Cheng
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
| | - Sagadevan Mundree
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia
| | - Brett Williams
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, Australia.
| |
Collapse
|
16
|
Farrant JM, Moore JP, Hilhorst HWM. Editorial: Unifying Insights into the Desiccation Tolerance Mechanisms of Resurrection Plants and Seeds. FRONTIERS IN PLANT SCIENCE 2020; 11:1089. [PMID: 32793258 PMCID: PMC7385401 DOI: 10.3389/fpls.2020.01089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 07/02/2020] [Indexed: 05/31/2023]
Affiliation(s)
- Jill M. Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - John P. Moore
- Department of Viticulture and Oenology, Faculty of AgriSciences, Institute for Wine Biotechnology, Stellenbosch University, Matieland, South Africa
| | - Henk W. M. Hilhorst
- Laboratory of Plant Physiology, Wageningen University and Research, Wageningen, Netherlands
| |
Collapse
|
17
|
John SP, Hasenstein KH. Desiccation Mitigates Heat Stress in the Resurrection Fern, Pleopeltis polypodioides. FRONTIERS IN PLANT SCIENCE 2020; 11:597731. [PMID: 33329661 PMCID: PMC7733933 DOI: 10.3389/fpls.2020.597731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/10/2020] [Indexed: 05/13/2023]
Abstract
Although heat and desiccation stresses often coincide, the response to heat especially in desiccation tolerant plants is rarely studied. We subjected hydrated Pleopeltis polypodioides fronds to temperatures up to 50°C and dehydrated fronds up to 65°C for 24 h. The effect of heat stress was evaluated using morphological changes, photosystem (PS) II efficiency, and metabolic indicators. Pinnae of dried fronds exposed to more than 40°C curled tighter and became brittle compared to fronds dried at lower temperatures. Exposure to > 50°C leads to discolored fronds after rehydration. Hydrated fronds turned partially brown at > 35°C. Chlorophyll fluorescence (Ft) and quantum yield (Qy) increased following re-hydration but the recovery process after 40°C treatment lasted longer than at lower temperatures. Similarly, hydrated fronds showed reduced Qy when exposed to > 40°C. Dried and hydrated fronds remained metabolically active up to 40°C. Hydroperoxides and lipid hydroperoxides in dried samples remained high up to 50°C, but decreased in hydrated fronds at > 40°C. Catalase (CAT) and glutathione (GSH) oxidizing activities remained high up to 40°C in dehydrated fronds and up to 35°C in hydrated fronds. Major fatty acids detected in both dehydrated and hydrated fronds included palmitic (C16:0) and stearic (C18:0) acids, oleic (18:1), linoleic (C18:2); and linolenic (C18:3) acids. Linolenic acid was most abundant. In dried fronds, all fatty acids decreased at > 35°C. The combined data indicate that the thermotolerance of dry fronds is about 55°C but is at least 10°C lower for hydrated fronds.
Collapse
|
18
|
López-Pozo M, Flexas J, Gulías J, Carriquí M, Nadal M, Perera-Castro AV, Clemente-Moreno MJ, Gago J, Núñez-Olivera E, Martínez-Abaigar J, Hernández A, Artetxe U, Bentley J, Farrant JM, Verhoeven A, García-Plazaola JI, Fernández-Marín B. A field portable method for the semi-quantitative estimation of dehydration tolerance of photosynthetic tissues across distantly related land plants. PHYSIOLOGIA PLANTARUM 2019; 167:540-555. [PMID: 30515832 DOI: 10.1111/ppl.12890] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/21/2018] [Accepted: 11/28/2018] [Indexed: 05/22/2023]
Abstract
Desiccation tolerant (DT) plants withstand complete cellular dehydration, reaching relative water contents (RWC) below 30% in their photosynthetic tissues. Desiccation sensitive (DS) plants exhibit different degrees of dehydration tolerance (DHT), never surviving water loss >70%. To date, no procedure for the quantitative evaluation of DHT extent exists that is able to discriminate DS species with differing degrees of DHT from truly DT plants. We developed a simple, feasible and portable protocol to differentiate between DT and different degrees of DHT in the photosynthetic tissues of seed plants and between fast desiccation (< 24 h) tolerant (FDT) and sensitive (FDS) bryophytes. The protocol is based on (1) controlled desiccation inside Falcon tubes equilibrated at three different relative humidities that, consequently, induce three different speeds and extents of dehydration and (2) an evaluation of the average percentage of maximal photochemical efficiency of PSII (Fv /fm) recovery after rehydration. Applying the method to 10 bryophytes and 28 tracheophytes from various locations, we found that (1) imbibition of absorbent material with concentrated salt-solutions inside the tubes provides stable relative humidity and avoids direct contact with samples; (2) for 50 ml capacity tubes, the optimal plant amount is 50-200 mg fresh weight; (3) the method is useful in remote locations due to minimal instrumental requirements; and (4) a threshold of 30% recovery of the initial Fv /fm upon reaching RWC ≤ 30% correctly categorises DT species, with three exceptions: two poikilochlorophyllous species and one gymnosperm. The protocol provides a semi-quantitative expression of DHT that facilitates comparisons of species with different morpho-physiological traits and/or ecological attributes.
Collapse
Affiliation(s)
- Marina López-Pozo
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Jaume Flexas
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Javier Gulías
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Marc Carriquí
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Miquel Nadal
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Alicia V Perera-Castro
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - María José Clemente-Moreno
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | - Jorge Gago
- Research Group on Plant Biology under Mediterranean conditions, Departament de Biologia, Universitat de les Illes Balears/Institute of Agro-Environmental and Water Economy Research -INAGEA, Palma, Spain
| | | | | | - Antonio Hernández
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Unai Artetxe
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Joanne Bentley
- Department of Molecular and Cell Biology, University of Cape Town, Rondebosch, South Africa
| | - Jill M Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Rondebosch, South Africa
| | - Amy Verhoeven
- Biology Department (OWS352), University of St. Thomas, St. Paul, MN, USA
| | | | - Beatriz Fernández-Marín
- Department Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
| |
Collapse
|
19
|
Radermacher AL, du Toit SF, Farrant JM. Desiccation-Driven Senescence in the Resurrection Plant Xerophyta schlechteri (Baker) N.L. Menezes: Comparison of Anatomical, Ultrastructural, and Metabolic Responses Between Senescent and Non-Senescent Tissues. FRONTIERS IN PLANT SCIENCE 2019; 10:1396. [PMID: 31737017 PMCID: PMC6831622 DOI: 10.3389/fpls.2019.01396] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 10/09/2019] [Indexed: 05/30/2023]
Abstract
Drought-induced senescence is a degenerative process that involves the degradation of cellular metabolites and photosynthetic pigments and uncontrolled dismantling of cellular membranes and organelles. Angiosperm resurrection plants display vegetative desiccation tolerance and avoid drought-induced senescence in most of their tissues. Developmentally older tissues, however, fail to recover during rehydration and ultimately senesce. Comparison of the desiccation-associated responses of older senescent tissues (ST) with non-ST (NST) will allow for understanding of mechanisms promoting senescence in the former and prevention of senescence in the latter. In the monocotyledonous resurrection plant Xerophyta schlechteri (Baker) N.L. Menezes*, leaf tips senesce following desiccation, whereas the rest of the leaf blade survives. We characterized structural and metabolic changes in ST and NST at varying water contents during desiccation and rehydration. Light and transmission electron microscopy was used to follow anatomical and subcellular responses, and metabolic differences were studied using gas chromatography-mass spectrometry and colorimetric metabolite assays. The results show that drying below 35% relative water content (0.7 gH2O/g dry mass) in ST resulted in the initiation of age-related senescence hallmarks and that these tissues continue this process after rehydration. We propose that an age-related desiccation sensitivity occurs in older tissues, in a process metabolically similar to that observed during age-related senescence in Arabidopsis thaliana.
Collapse
Affiliation(s)
| | | | - Jill M. Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
20
|
Liu J, Moyankova D, Djilianov D, Deng X. Common and Specific Mechanisms of Desiccation Tolerance in Two Gesneriaceae Resurrection Plants. Multiomics Evidences. FRONTIERS IN PLANT SCIENCE 2019; 10:1067. [PMID: 31552070 PMCID: PMC6737074 DOI: 10.3389/fpls.2019.01067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/07/2019] [Indexed: 05/06/2023]
Abstract
Environmental stress, especially water deficiency, seriously limits plant distribution and crop production worldwide. A small group of vascular angiosperm plants termed "resurrection plants," possess desiccation tolerance (DT) to withstand dehydration and to recover fully upon rehydration. In recent years, with the rapid development of life science in plants different omics technologies have been widely applied in resurrection plants to study DT. Boea hygrometrica is native in East and Southeast Asia, and Haberlea rhodopensis is endemic to the Balkans in Europe. They are both resurrection pants from Gesneriaceae family. This paper reviews recent advances in transcriptome and metabolome, and discusses the differences and similarities of DT features between both species. Finally, we believe we provide novel insights into understanding the mechanisms underlying the acquisition and evolution of desiccation tolerance of the resurrection plants that could substantially contribute to develop new approaches for agriculture to overcome water deficiency in future.
Collapse
Affiliation(s)
- Jie Liu
- Facility Horticulture Laboratory of Universities in Shandong, Weifang University of Science and Technology, Shouguang, China
- Key Laboratory of Plant Resource, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Daniela Moyankova
- Abiotic Stress Group, Agrobioinstitute, Agricultural Academy, Sofia, Bulgaria
| | - Dimitar Djilianov
- Abiotic Stress Group, Agrobioinstitute, Agricultural Academy, Sofia, Bulgaria
| | - Xin Deng
- Key Laboratory of Plant Resource, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
21
|
Yobi A, Batushansky A, Oliver MJ, Angelovici R. Adaptive responses of amino acid metabolism to the combination of desiccation and low nitrogen availability in Sporobolus stapfianus. PLANTA 2019; 249:1535-1549. [PMID: 30725176 DOI: 10.1007/s00425-019-03105-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 01/30/2019] [Indexed: 06/09/2023]
Abstract
Depending on nitrogen availability, S. stapfianus uses different amino acid metabolism strategies to cope with desiccation stress. The different metabolic strategies support essential processes for the desiccation tolerance phenotype. To provide a comprehensive assessment of the role played by amino acids in the adaptation of Sporobolus stapfianus to a combination of desiccation and nitrogen limitation, we used an absolute quantification of free and protein-bound amino acids (FAAs and PBAAs) as well as their gamma-glutamyl (gg-AA) derivatives in four different tissues grown under high- and low-nitrogen regimes. We demonstrate that although specific FAAs and gg-AAs increased in desiccating immature leaves under both nitrogen regimes, the absolute change in the total amount of either is small or negligible, negating their proposed role in nitrogen storage. FAAs and PBAAs decrease in underground tissues during desiccation, when nitrogen is abundant. In contrast, PBAAs are drastically reduced from the mature leaves, when nitrogen is limiting. Nevertheless, the substantial reduction in PBAA and FAA fractions in both treatments is not manifested in the immature leaves, which strongly suggests that these amino acids are further metabolized to fuel central metabolism or other metabolic adjustments that are essential for the acquisition of desiccation tolerance (DT).
Collapse
Affiliation(s)
- Abou Yobi
- Division of Biological Sciences, Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65311, USA
| | - Albert Batushansky
- Division of Biological Sciences, Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65311, USA
- Aging and Metabolism Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Melvin J Oliver
- U.S. Department of Agriculture-Agricultural Research Service, Plant Genetic Research Unit, University of Missouri, Columbia, MO, 65211, USA
| | - Ruthie Angelovici
- Division of Biological Sciences, Interdisciplinary Plant Group, Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, 65311, USA.
| |
Collapse
|
22
|
Hasan MMU, Ma F, Islam F, Sajid M, Prodhan ZH, Li F, Shen H, Chen Y, Wang X. Comparative Transcriptomic Analysis of Biological Process and Key Pathway in Three Cotton ( Gossypium spp.) Species Under Drought Stress. Int J Mol Sci 2019; 20:E2076. [PMID: 31035558 PMCID: PMC6539811 DOI: 10.3390/ijms20092076] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/19/2019] [Accepted: 04/24/2019] [Indexed: 01/16/2023] Open
Abstract
Drought is one of the most important abiotic stresses that seriously affects cotton growth, development, and production worldwide. However, the molecular mechanism, key pathway, and responsible genes for drought tolerance incotton have not been stated clearly. In this research, high-throughput next generation sequencing technique was utilized to investigate gene expression profiles of three cotton species (Gossypium hirsutum, Gossypium arboreum, and Gossypium barbadense L.) under drought stress. A total of 6968 differentially expressed genes (DEGs) were identified, where 2053, 742, and 4173 genes were tested as statistically significant; 648, 320, and 1998 genes were up-regulated, and 1405, 422, and 2175 were down-regulated in TM-1, Zhongmian-16, and Pima4-S, respectively. Total DEGs were annotated and classified into functional groups under gene ontology analysis. The biological process was present only in tolerant species(TM-1), indicating drought tolerance condition. The Kyoto encyclopedia of genes and genomes showed the involvement of plant hormone signal transduction and metabolic pathways enrichment under drought stress. Several transcription factors associated with ethylene-responsive genes (ICE1, MYB44, FAMA, etc.) were identified as playing key roles in acclimatizing to drought stress. Drought also caused significant changes in the expression of certain functional genes linked to abscisic acid (ABA) responses (NCED, PYL, PP2C, and SRK2E), reactive oxygen species (ROS) related in small heat shock protein and 18.1 kDa I heat shock protein, YLS3, and ODORANT1 genes. These results will provide deeper insights into the molecular mechanisms of drought stress adaptation in cotton.
Collapse
Affiliation(s)
- Md Mosfeq-Ul Hasan
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
- Examination Controller Section, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200, Bangladesh.
| | - Fanglu Ma
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Faisal Islam
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Muhammad Sajid
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Zakaria H Prodhan
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Feng Li
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Hao Shen
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Yadong Chen
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| | - Xuede Wang
- Institute of Crop Science, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
23
|
Asami P, Rupasinghe T, Moghaddam L, Njaci I, Roessner U, Mundree S, Williams B. Roots of the Resurrection Plant Tripogon loliiformis Survive Desiccation Without the Activation of Autophagy Pathways by Maintaining Energy Reserves. FRONTIERS IN PLANT SCIENCE 2019; 10:459. [PMID: 31105716 PMCID: PMC6494956 DOI: 10.3389/fpls.2019.00459] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/27/2019] [Indexed: 05/18/2023]
Abstract
Being sessile, plants must regulate energy balance, potentially via source-sink relations, to compromise growth with survival in stressful conditions. Crops are sensitive, possibly because they allocate their energy resources toward growth and yield rather than stress tolerance. In contrast, resurrection plants tightly regulate sugar metabolism and use a series of physiological adaptations to suppress cell death in their vegetative tissue to regain full metabolic capacity from a desiccated state within 72 h of watering. Previously, we showed that shoots of the resurrection plant Tripogon loliiformis, initiate autophagy upon dehydration as one strategy to reinstate homeostasis and suppress cell death. Here, we describe the relationship between energy status, sugar metabolism, trehalose-mediated activation of autophagy pathways and investigate whether shoots and roots utilize similar desiccation tolerance strategies. We show that despite containing high levels of trehalose, dehydrated Tripogon roots do not display elevated activation of autophagy pathways. Using targeted and non-targeted metabolomics, transmission electron microscopy (TEM) and transcriptomics we show that T. loliiformis engages a strategy similar to the long-term drought responses of sensitive plants and continues to use the roots as a sink even during sustained stress. Dehydrating T. loliiformis roots contained more sucrose and trehalose-6-phosphate compared to shoots at an equivalent water content. The increased resources in the roots provides sufficient energy to cope with stress and thus autophagy is not required. These results were confirmed by the absence of autophagosomes in roots by TEM. Upregulation of sweet genes in both shoots and roots show transcriptional regulation of sucrose translocation from leaves to roots and within roots during dehydration. Differences in the cell's metabolic status caused starkly different cell death responses between shoots and roots. These findings show how shoots and roots utilize different stress response strategies and may provide candidate targets that can be used as tools for the improvement of stress tolerance in crops.
Collapse
Affiliation(s)
- Pauline Asami
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, QLD, Australia
| | - Thusitha Rupasinghe
- Metabolomics Australia, School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Lalehvash Moghaddam
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, QLD, Australia
| | - Isaac Njaci
- Biosciences Eastern and Central Africa-International Livestock Research Institute, Nairobi, Kenya
| | - Ute Roessner
- Metabolomics Australia, School of BioSciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Sagadevan Mundree
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, QLD, Australia
| | - Brett Williams
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, QLD, Australia
| |
Collapse
|
24
|
Wang B, Yang L, Zhang Y, Chen S, Gao X, Wan C. Investigation of the dynamical expression of Nostoc flagelliforme proteome in response to rehydration. J Proteomics 2019; 192:160-168. [DOI: 10.1016/j.jprot.2018.08.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 08/20/2018] [Accepted: 08/27/2018] [Indexed: 12/18/2022]
|
25
|
Janse van Rensburg HC, Van den Ende W, Signorelli S. Autophagy in Plants: Both a Puppet and a Puppet Master of Sugars. FRONTIERS IN PLANT SCIENCE 2019; 10:14. [PMID: 30723485 PMCID: PMC6349728 DOI: 10.3389/fpls.2019.00014] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 01/07/2019] [Indexed: 05/20/2023]
Abstract
Autophagy is a major pathway that recycles cellular components in eukaryotic cells both under stressed and non-stressed conditions. Sugars participate both metabolically and as signaling molecules in development and response to various environmental and nutritional conditions. It is therefore essential to maintain metabolic homeostasis of sugars during non-stressed conditions in cells, not only to provide energy, but also to ensure effective signaling when exposed to stress. In both plants and animals, autophagy is activated by the energy sensor SnRK1/AMPK and inhibited by TOR kinase. SnRK1/AMPK and TOR kinases are both important regulators of cellular metabolism and are controlled to a large extent by the availability of sugars and sugar-phosphates in plants whereas in animals AMP/ATP indirectly translate sugar status. In plants, during nutrient and sugar deficiency, SnRK1 is activated, and TOR is inhibited to allow activation of autophagy which in turn recycles cellular components in an attempt to provide stress relief. Autophagy is thus indirectly regulated by the nutrient/sugar status of cells, but also regulates the level of nutrients/sugars by recycling cellular components. In both plants and animals sugars such as trehalose induce autophagy and in animals this is independent of the TOR pathway. The glucose-activated G-protein signaling pathway has also been demonstrated to activate autophagy, although the exact mechanism is not completely clear. This mini-review will focus on the interplay between sugar signaling and autophagy.
Collapse
Affiliation(s)
| | - Wim Van den Ende
- Laboratory of Molecular Plant Biology, KU Leuven, Leuven, Belgium
| | - Santiago Signorelli
- Laboratory of Molecular Plant Biology, KU Leuven, Leuven, Belgium
- Departamento de Biologiía Vegetal, Facultad de Agronomía, Universidad de la Repuíblica, Montevideo, Uruguay
| |
Collapse
|
26
|
Zhang H, Li Y, Zhu JK. Developing naturally stress-resistant crops for a sustainable agriculture. NATURE PLANTS 2018; 4:989-996. [PMID: 30478360 DOI: 10.1038/s41477-018-0309-4] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 10/17/2018] [Indexed: 05/19/2023]
Abstract
A major problem facing humanity is that our numbers are growing but the availability of land and fresh water for agriculture is not. This problem is being exacerbated by climate change-induced increases in drought, and other abiotic stresses. Stress-resistant crops are needed to ensure yield stability under stress conditions and to minimize the environmental impacts of crop production. Evolution has created thousands of species of naturally stress-resistant plants (NSRPs), some of which have already been subjected to human domestication and are considered minor crops. Broader cultivation of these minor crops will diversify plant agriculture and the human diet, and will therefore help improve global food security and human health. More research should be directed toward understanding and utilizing NSRPs. Technologies are now available that will enable researchers to rapidly improve the genetics of NSRPs, with the goal of increasing NSRP productivity while retaining NSRP stress resistance and nutritional value.
Collapse
Affiliation(s)
- Heng Zhang
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.
- National Key Laboratory of Plant Molecular Genetics, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Yuanyuan Li
- Key Laboratory of Plant Stress Research, Shandong Normal University, Jinan, Shandong, China
| | - Jian-Kang Zhu
- Shanghai Center for Plant Stress Biology, Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, China.
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, USA.
| |
Collapse
|
27
|
Response of Lablab purpureus L. to high temperature stress and role of exogenous protectants in mitigating high temperature induced oxidative damages. Mol Biol Rep 2018; 45:1375-1395. [PMID: 30109547 DOI: 10.1007/s11033-018-4301-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
Abstract
Present study was conducted to explore the role of exogenous salicylic acid (SA), sodium nitroprusside (SNP), abscisic acid (ABA) and proline (PRO) in mitigating high-temperature (HT) induced oxidative stress in different Lablab purpureus L. cultivars. The attempt was made to examine whether these phytohormones, when applied exogenously, were able to regulate plant morpho-physiological behavior by modulating genes and proteins involved in antioxidant defense system. The HT stress induced membrane damage, degraded chlorophyll, generated redox metabolites and significantly reduced growth and biomass in all the cultivars. Among all the four treatments, foliar application of SA and SNP were most effective in the regulation of growth and physiological processes of the cultivars compared to ABA and PRO applications. Thus, signifying the protective role of SA and SNP in mitigation of HT induced oxidative stress and conferring HT stress tolerance in the cultivars. Gene expression and leaf proteome analysis revealed that these phytohormones were also involved in regulation of defense related gene expression, stress inducible proteins and de novo synthesis of specific proteins under HT stress. The experimental findings depict that foliar applications of SA and SNP enhances HT stress tolerance in lablab cultivars by modulating antioxidant defense system and by regulating bio-physical growth more effectively as compared to ABA and PRO application.
Collapse
|
28
|
Plant Desiccation Tolerance and its Regulation in the Foliage of Resurrection “Flowering-Plant” Species. AGRONOMY-BASEL 2018. [DOI: 10.3390/agronomy8080146] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The majority of flowering-plant species can survive complete air-dryness in their seed and/or pollen. Relatively few species (‘resurrection plants’) express this desiccation tolerance in their foliage. Knowledge of the regulation of desiccation tolerance in resurrection plant foliage is reviewed. Elucidation of the regulatory mechanism in resurrection grasses may lead to identification of genes that can improve stress tolerance and yield of major crop species. Well-hydrated leaves of resurrection plants are desiccation-sensitive and the leaves become desiccation tolerant as they are drying. Such drought-induction of desiccation tolerance involves changes in gene-expression causing extensive changes in the complement of proteins and the transition to a highly-stable quiescent state lasting months to years. These changes in gene-expression are regulated by several interacting phytohormones, of which drought-induced abscisic acid (ABA) is particularly important in some species. Treatment with only ABA induces desiccation tolerance in vegetative tissue of Borya constricta Churchill. and Craterostigma plantagineum Hochstetter. but not in the resurrection grass Sporobolus stapfianus Gandoger. Suppression of drought-induced senescence is also important for survival of drying. Further research is needed on the triggering of the induction of desiccation tolerance, on the transition between phases of protein synthesis and on the role of the phytohormone, strigolactone and other potential xylem-messengers during drying and rehydration.
Collapse
|
29
|
Challabathula D, Zhang Q, Bartels D. Protection of photosynthesis in desiccation-tolerant resurrection plants. JOURNAL OF PLANT PHYSIOLOGY 2018; 227:84-92. [PMID: 29778495 DOI: 10.1016/j.jplph.2018.05.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 04/30/2018] [Accepted: 05/01/2018] [Indexed: 05/14/2023]
Abstract
Inhibition of photosynthesis is a central, primary response that is observed in both desiccation-tolerant and desiccation-sensitive plants affected by drought stress. Decreased photosynthesis during drought stress can either be due to the limitation of carbon dioxide entry through the stomata and the mesophyll cells, due to increased oxidative stress or due to decreased activity of photosynthetic enzymes. Although the photosynthetic rates decrease in both desiccation-tolerant and sensitive plants during drought, the remarkable difference lies in the complete recovery of photosynthesis after rehydration in desiccation-tolerant plants. Desiccation of sensitive plants leads to irreparable damages of the photosynthetic membranes, in contrast the photosynthetic apparatus is deactivated during desiccation in desiccation-tolerant plants. Desiccation-tolerant plants employ different strategies to protect and/or maintain the structural integrity of the photosynthetic apparatus to reactivate photosynthesis upon water availability. Two major mechanisms are distinguished. Homoiochlorophyllous desiccation-tolerant plants preserve chlorophyll and thylakoid membranes and require active protection mechanisms, while poikilochlorophyllous plants degrade chlorophyll in a regulated manner but then require de novo synthesis during rehydration. Desiccation-tolerant plants, particularly homoiochlorophyllous plants, employ conserved and novel antioxidant enzymes/metabolites to minimize the oxidative damage and to protect the photosynthetic machinery. De novo synthesized, stress-induced proteins in combination with antioxidants are localized in chloroplasts and are important components of the protective network. Genome sequence informations provide some clues on selection of genes involved in protecting photosynthetic structures; e.g. ELIP genes (early light inducible proteins) are enriched in the genomes and more abundantly expressed in homoiochlorophyllous desiccation-tolerant plants. This review focuses on the mechanisms that operate in the desiccation-tolerant plants to protect the photosynthetic apparatus during desiccation.
Collapse
Affiliation(s)
- Dinakar Challabathula
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Kirschallee 1, 53115 Bonn, Germany; Department of Life Sciences, School of Basic and Applied Sciences, Central University of Tamil Nadu, Thiruvarur, India
| | - Qingwei Zhang
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Kirschallee 1, 53115 Bonn, Germany
| | - Dorothea Bartels
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
| |
Collapse
|
30
|
Zhang Q, Bartels D. Molecular responses to dehydration and desiccation in desiccation-tolerant angiosperm plants. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:3211-3222. [PMID: 29385548 DOI: 10.1093/jxb/erx489] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 12/20/2017] [Indexed: 05/21/2023]
Abstract
Due to the ability to tolerate extreme dehydration, desiccation-tolerant plants have been widely investigated to find potential approaches for improving water use efficiency or developing new crop varieties. The studies of desiccation-tolerant plants have identified sugar accumulation, specific protein synthesis, cell structure changes, and increased anti-oxidative reactions as part of the mechanisms of desiccation tolerance. However, plants respond differently according to the severity of water loss, and the process of water loss affects desiccation tolerance. A detailed analysis within the dehydration process is important for understanding the process of desiccation tolerance. This review defines dehydration and desiccation, finds the boundary for the relative water content between dehydration and desiccation, compares the molecular responses to dehydration and desiccation, compares signaling differences between dehydration and desiccation, and finally summarizes the strategies launched in desiccation-tolerant plants for dehydration and desiccation, respectively. The roles of abscisic acid (ABA) and reactive oxygen species (ROS) in sensing and signaling during dehydration are discussed. We outline how this knowledge can be exploited to generate drought-tolerant crop plants.
Collapse
Affiliation(s)
- Qingwei Zhang
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Germany
| | - Dorothea Bartels
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Germany
| |
Collapse
|
31
|
Asami P, Mundree S, Williams B. Saving for a rainy day: Control of energy needs in resurrection plants. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 271:62-66. [PMID: 29650158 DOI: 10.1016/j.plantsci.2018.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/27/2018] [Accepted: 03/02/2018] [Indexed: 05/02/2023]
Abstract
Plants constantly respond to threats in their environment by balancing their energy needs with growth, defence and survival. Some plants such as the small group of resilient angiosperms, the resurrection plants, do this better than most. Resurrection plants possess the capacity to tolerate desiccation in vegetative tissue and upon watering, regain full metabolic capacity within 72 h. Knowledge of how these plants survive such extremes has advanced in the last few decades, but the molecular mechanics remain elusive. Energy and water metabolism, cell cycle control, growth, senescence and cell death all play key roles in resurrection plant stress tolerance. Some resurrection plants suppress growth to improve energy efficiency and survival while sensitive species exhaust energy resources rapidly, have a diminished capacity to respond and die. How do the stress and energy metabolism responses employed by resurrection plants differ to those used by sensitive plants? In this perspective, we summarise recent findings defining the relationships between energy metabolism, stress tolerance and programmed cell death and speculate important roles for this regulation in resurrection plants. If we want to harness the strategies of resurrection plants for crop improvement, first we must understand the processes that underpin energy metabolism during growth and stress.
Collapse
Affiliation(s)
- Pauline Asami
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, P.O. Box 2434, Brisbane 4001, QLD, Australia
| | - Sagadevan Mundree
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, P.O. Box 2434, Brisbane 4001, QLD, Australia
| | - Brett Williams
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, P.O. Box 2434, Brisbane 4001, QLD, Australia.
| |
Collapse
|
32
|
Bechtold U. Plant Life in Extreme Environments: How Do You Improve Drought Tolerance? FRONTIERS IN PLANT SCIENCE 2018; 9:543. [PMID: 29868044 PMCID: PMC5962824 DOI: 10.3389/fpls.2018.00543] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/09/2018] [Indexed: 05/11/2023]
Abstract
Systems studies of drought stress in resurrection plants and other xerophytes are rapidly identifying a large number of genes, proteins and metabolites that respond to severe drought stress or desiccation. This has provided insight into drought resistance mechanisms, which allow xerophytes to persist under such extreme environmental conditions. Some of the mechanisms that ensure cellular protection during severe dehydration appear to be unique to desert species, while many other stress signaling pathways are in common with well-studied model and crop species. However, despite the identification of many desiccation inducible genes, there are few "gene-to-field" examples that have led to improved drought tolerance and yield stability derived from resurrection plants, and only few examples have emerged from model species. This has led to many critical reviews on the merit of the experimental approaches and the type of plants used to study drought resistance mechanisms. This article discusses the long-standing arguments between the ecophysiology and molecular biology communities, on how to "drought-proof" future crop varieties. It concludes that a more positive and inclusive dialogue between the different disciplines is needed, to allow us to move forward in a much more constructive way.
Collapse
Affiliation(s)
- Ulrike Bechtold
- School of Biological Sciences, University of Essex, Colchester, United Kingdom
| |
Collapse
|
33
|
Tshabuse F, Farrant JM, Humbert L, Moura D, Rainteau D, Espinasse C, Idrissi A, Merlier F, Acket S, Rafudeen MS, Thomasset B, Ruelland E. Glycerolipid analysis during desiccation and recovery of the resurrection plant Xerophyta humilis (Bak) Dur and Schinz. PLANT, CELL & ENVIRONMENT 2018; 41:533-547. [PMID: 28865108 DOI: 10.1111/pce.13063] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 08/21/2017] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Abstract
Xerophyta humilis is a poikilochlorophyllous monocot resurrection plant used as a model to study vegetative desiccation tolerance. Dehydration imposes tension and ultimate loss of integrity of membranes in desiccation sensitive species. We investigated the predominant molecular species of glycerolipids present in root and leaf tissues, using multiple reaction monitoring mass spectrometry, and then analysed changes therein during dehydration and subsequent rehydration of whole plants. The presence of fatty acids with long carbon chains and with odd numbers of carbons were detected and confirmed by gas chromatography. Dehydration of both leaves and roots resulted in an increase in species containing polyunsaturated fatty acids and a decrease in disaturated species. Upon rehydration, lipid saturation was reversed, with this being initiated immediately upon watering in roots but only 12-24 hr later in leaves. Relative levels of species with short-chained odd-numbered saturated fatty acids decreased during dehydration and increased during rehydration, whereas the reverse trend was observed for long-chained fatty acids. X. humilis has a unique lipid composition, this report being one of the few to demonstrate the presence of odd-numbered fatty acids in plant phosphoglycerolipids.
Collapse
Affiliation(s)
- Freedom Tshabuse
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch, 7701, South Africa
| | - Jill M Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch, 7701, South Africa
| | - Lydie Humbert
- Laboratoire des BioMolécules, CNRS UMR7203, Université Pierre et Marie Curie-Faculté de Médecine-Saint Antoine, 184 rue du Faubourg Saint-Antoine, 75571, Paris Cedex 12, France
| | - Deborah Moura
- Université Paris-Est, UPEC, Institut d'Ecologie et des Sciences Environnementales de Paris, 94010, Créteil Cedex, France
| | - Dominique Rainteau
- Laboratoire des BioMolécules, CNRS UMR7203, Université Pierre et Marie Curie-Faculté de Médecine-Saint Antoine, 184 rue du Faubourg Saint-Antoine, 75571, Paris Cedex 12, France
| | - Christophe Espinasse
- Université Paris-Est, UPEC, Institut d'Ecologie et des Sciences Environnementales de Paris, 94010, Créteil Cedex, France
| | - Abdelghani Idrissi
- Sorbonne Universités, Université Technologique de Compiegne (UTC), Génie Enzymatique et Cellulaire (GEC), FRE-CNRS 3580, CS 60319, 60203, Compiègne Cedex, France
| | - Franck Merlier
- Sorbonne Universités, Université Technologique de Compiegne (UTC), Génie Enzymatique et Cellulaire (GEC), FRE-CNRS 3580, CS 60319, 60203, Compiègne Cedex, France
| | - Sébastien Acket
- Sorbonne Universités, Université Technologique de Compiegne (UTC), Génie Enzymatique et Cellulaire (GEC), FRE-CNRS 3580, CS 60319, 60203, Compiègne Cedex, France
| | - Mohamad S Rafudeen
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch, 7701, South Africa
| | - Brigitte Thomasset
- Sorbonne Universités, Université Technologique de Compiegne (UTC), Génie Enzymatique et Cellulaire (GEC), FRE-CNRS 3580, CS 60319, 60203, Compiègne Cedex, France
| | - Eric Ruelland
- Université Paris-Est, UPEC, Institut d'Ecologie et des Sciences Environnementales de Paris, 94010, Créteil Cedex, France
- CNRS, Institut d'Ecologie et des Sciences Environnementales de Paris, UMR7618, 94010, Créteil cedex, France
| |
Collapse
|
34
|
Blum A, Tuberosa R. Dehydration survival of crop plants and its measurement. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:975-981. [PMID: 29325054 PMCID: PMC6018961 DOI: 10.1093/jxb/erx445] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 12/08/2017] [Indexed: 05/07/2023]
Abstract
Dehydration survival under drought stress is defined in this review as the transition from plant activity into a quiescent state of life preservation, which will be terminated by either recovery or death, depending on the stress regime and the plant's resilience. Dehydration survival is a popular phenotype by which functional genomics attempts to test gene function in drought resistance and survival. The available reports on phenotyping and genotyping of dehydration survival in genomic studies indicate that the measurement of this trait is often biased to the extent that misguided interpretations are likely to occur. This review briefly discusses the physiological basis of dehydration survival in resurrection plants and crop plants, and concludes that in phenotyping dehydration survival there is a need to distinguish between dehydration avoidance and dehydration tolerance (also termed desiccation tolerance) in affecting survival and recovery. Without this distinction, functional genomics studies of the trait might be biased. Survival due to dehydration avoidance is expressed by the capacity to maintain a relatively high plant water status as the plant is desiccated. Survival due to dehydration tolerance is expressed by delayed mortality (mortality at a relatively low plant water status) as affected by the resilience of plant metabolism. The common test of dehydration survival, using the relative recovery after a given number of stress days, is therefore insufficient because it is mainly driven by dehydration avoidance and so ignores a possible role for dehydration tolerance. Conceivable methods for more accurate phenotyping of the two components of dehydration survival are proposed and discussed.
Collapse
Affiliation(s)
| | - Roberto Tuberosa
- Department of Agricultural Sciences, University of Bologna, Viale Fanin, Bologna, Italy
| |
Collapse
|
35
|
Aidar SDT, Chaves ARDM, Fernandes Júnior PI, Oliveira MDS, Costa Neto BPD, Calsa Junior T, Morgante CV. Vegetative desiccation tolerance of Tripogon spicatus (Poaceae) from the tropical semiarid region of northeastern Brazil. FUNCTIONAL PLANT BIOLOGY : FPB 2017; 44:1124-1133. [PMID: 32480638 DOI: 10.1071/fp17066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 07/14/2017] [Indexed: 06/11/2023]
Abstract
The vegetative desiccation tolerance of Tripogon spicatus (Nees) Ekman was confirmed by its ability to recover the physiological functionality of intact plants previously subjected to extreme dehydration. Photosynthesis became undetectable when leaf relative water content (RWCleaf) achieved ~60%, whereas photochemical variables showed a partial decrease. Until the minimum RWCleaf of 6.41%, total chl decreased by 9%, and total carotenoids increased by 29%. Superoxide dismutase (SOD) activity decreased by 57%, on average, during dehydration, but catalase (CAT) and peroxidase (APX) activities showed no significant differences throughout the experiment. Malondialdehyde (MDA) content increased by 151%, total leaf and root amino acids decreased by 62% and 77%, respectively, whereas leaf and root proline decreased by 40% and 61%, respectively, until complete desiccation. After rehydration, leaves completely recovered turgidity and total chl contents. Carotenoids and MDA remained high, whereas SOD was 60% lower than the measured average measured before dehydration. With the exception of root amino acid contents, total amino acids and proline concentrations recovered completely. Gas exchange and photochemical variables remained substantially higher 4 days after rehydration, compared with the control. Besides increasing MDA, the overall physiological results showed that membrane functionality was preserved, leading to the vegetative desiccation tolerance of T. spicatus during the dehydration-rehydration cycle.
Collapse
Affiliation(s)
- Saulo de T Aidar
- Empresa Brasileira de Pesquisa Agropecuária Embrapa Semiárido, Rodovia BR 428, km 152, PO Box 23, Petrolina, Pernambuco, Brazil
| | - Agnaldo R de M Chaves
- Empresa Brasileira de Pesquisa Agropecuária Embrapa Semiárido, Rodovia BR 428, km 152, PO Box 23, Petrolina, Pernambuco, Brazil
| | - Paulo I Fernandes Júnior
- Empresa Brasileira de Pesquisa Agropecuária Embrapa Semiárido, Rodovia BR 428, km 152, PO Box 23, Petrolina, Pernambuco, Brazil
| | - Melquisedec de S Oliveira
- Universidade Federal de Pernambuco (UFPE), Departamento de Genética, Avenida Professor Moraes Rego, 1235, Cidade Universitária, CEP 50670420, Recife, Pernambuco, Brazil
| | - Benjamim P da Costa Neto
- Universidade de Pernambuco (UPE), Rodovia BR 203, Km 2, sem número, CEP 56328903, Petrolina, Pernambuco, Brazil
| | - Tercílio Calsa Junior
- Universidade Federal de Pernambuco (UFPE), Departamento de Genética, Avenida Professor Moraes Rego, 1235, Cidade Universitária, CEP 50670420, Recife, Pernambuco, Brazil
| | - Carolina V Morgante
- Empresa Brasileira de Pesquisa Agropecuária Embrapa Semiárido, Rodovia BR 428, km 152, PO Box 23, Petrolina, Pernambuco, Brazil
| |
Collapse
|
36
|
Guadagno CR, Ewers BE, Speckman HN, Aston TL, Huhn BJ, DeVore SB, Ladwig JT, Strawn RN, Weinig C. Dead or Alive? Using Membrane Failure and Chlorophyll a Fluorescence to Predict Plant Mortality from Drought. PLANT PHYSIOLOGY 2017; 175:223-234. [PMID: 28710130 PMCID: PMC5580738 DOI: 10.1104/pp.16.00581] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 07/11/2017] [Indexed: 05/02/2023]
Abstract
Climate models predict widespread increases in both drought intensity and duration in the next decades. Although water deficiency is a significant determinant of plant survival, limited understanding of plant responses to extreme drought impedes forecasts of both forest and crop productivity under increasing aridity. Drought induces a suite of physiological responses; however, we lack an accurate mechanistic description of plant response to lethal drought that would improve predictive understanding of mortality under altered climate conditions. Here, proxies for leaf cellular damage, chlorophyll a fluorescence, and electrolyte leakage were directly associated with failure to recover from drought upon rewatering in Brassicarapa (genotype R500) and thus define the exact timing of drought-induced death. We validated our results using a second genotype (imb211) that differs substantially in life history traits. Our study demonstrates that whereas changes in carbon dynamics and water transport are critical indicators of drought stress, they can be unrelated to visible metrics of mortality, i.e. lack of meristematic activity and regrowth. In contrast, membrane failure at the cellular scale is the most proximate cause of death. This hypothesis was corroborated in two gymnosperms (Picea engelmannii and Pinus contorta) that experienced lethal water stress in the field and in laboratory conditions. We suggest that measurement of chlorophyll a fluorescence can be used to operationally define plant death arising from drought, and improved plant characterization can enhance surface model predictions of drought mortality and its consequences to ecosystem services at a global scale.
Collapse
Affiliation(s)
| | - Brent E Ewers
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
- Program in Ecology, University of Wyoming, Laramie, Wyoming 82071
| | - Heather N Speckman
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
- Program in Ecology, University of Wyoming, Laramie, Wyoming 82071
| | - Timothy Llewellyn Aston
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
- Program in Ecology, University of Wyoming, Laramie, Wyoming 82071
| | - Bridger J Huhn
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
| | - Stanley B DeVore
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
| | - Joshua T Ladwig
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
| | - Rachel N Strawn
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
| | - Cynthia Weinig
- Botany Department, University of Wyoming, Laramie, Wyoming 82071
- Program in Ecology, University of Wyoming, Laramie, Wyoming 82071
- Department of Molecular Biology, University of Wyoming, Laramie, Wyoming 82071
| |
Collapse
|
37
|
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
|
38
|
Kabbage M, Kessens R, Bartholomay LC, Williams B. The Life and Death of a Plant Cell. ANNUAL REVIEW OF PLANT BIOLOGY 2017; 68:375-404. [PMID: 28125285 DOI: 10.1146/annurev-arplant-043015-111655] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Like all eukaryotic organisms, plants possess an innate program for controlled cellular demise termed programmed cell death (PCD). Despite the functional conservation of PCD across broad evolutionary distances, an understanding of the molecular machinery underpinning this fundamental program in plants remains largely elusive. As in mammalian PCD, the regulation of plant PCD is critical to development, homeostasis, and proper responses to stress. Evidence is emerging that autophagy is key to the regulation of PCD in plants and that it can dictate the outcomes of PCD execution under various scenarios. Here, we provide a broad and comparative overview of PCD processes in plants, with an emphasis on stress-induced PCD. We also discuss the implications of the paradox that is functional conservation of apoptotic hallmarks in plants in the absence of core mammalian apoptosis regulators, what that means, and whether an equivalent form of death occurs in plants.
Collapse
Affiliation(s)
- Mehdi Kabbage
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, Wisconsin 53706;
| | - Ryan Kessens
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, Wisconsin 53706;
| | - Lyric C Bartholomay
- Department of Pathobiological Sciences, University of Wisconsin-Madison, Madison, Wisconsin 53706
| | - Brett Williams
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, Brisbane, Queensland 4001, Australia;
| |
Collapse
|
39
|
Yobi A, Schlauch KA, Tillett RL, Yim WC, Espinoza C, Wone BWM, Cushman JC, Oliver MJ. Sporobolus stapfianus: Insights into desiccation tolerance in the resurrection grasses from linking transcriptomics to metabolomics. BMC PLANT BIOLOGY 2017; 17:67. [PMID: 28351347 PMCID: PMC5371216 DOI: 10.1186/s12870-017-1013-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 03/16/2017] [Indexed: 05/23/2023]
Abstract
BACKGROUND Understanding the response of resurrection angiosperms to dehydration and rehydration is critical for deciphering the mechanisms of how plants cope with the rigors of water loss from their vegetative tissues. We have focused our studies on the C4 resurrection grass, Sporobolus stapfianus Gandoger, as a member of a group of important forage grasses. METHODS We have combined non-targeted metabolomics with transcriptomics, via a NimbleGen array platform, to develop an understanding of how gene expression and metabolite profiles can be linked to generate a more detailed mechanistic appreciation of the cellular response to both desiccation and rehydration. RESULTS The rehydration transcriptome and metabolome are primarily geared towards the rapid return of photosynthesis, energy metabolism, protein turnover, and protein synthesis during the rehydration phase. However, there are some metabolites associated with ROS protection that remain elevated during rehydration, most notably the tocopherols. The analysis of the dehydration transcriptome reveals a strong concordance between transcript abundance and the associated metabolite abundance reported earlier, but only in responses that are directly related to cellular protection during dehydration: carbohydrate metabolism and redox homeostasis. The transcriptome response also provides strong support for the involvement of cellular protection processes as exemplified by the increases in the abundance of transcripts encoding late embryogenesis abundant (LEA) proteins, anti-oxidant enzymes, early light-induced proteins (ELIP) proteins, and cell-wall modification enzymes. There is little concordance between transcript and metabolite abundance for processes such as amino acid metabolism that do not appear to contribute directly to cellular protection, but are nonetheless important for the desiccation tolerant phenotype of S. stapfianus. CONCLUSIONS The transcriptomes of both dehydration and rehydration offer insight into the complexity of the regulation of responses to these processes that involve complex signaling pathways and associated transcription factors. ABA appears to be important in the control of gene expression in both the latter stages of the dehydration and the early stages of rehydration. These findings add to the growing body of information detailing how plants tolerate and survive the severe cellular perturbations of dehydration, desiccation, and rehydration.
Collapse
Affiliation(s)
- Abou Yobi
- U.S. Department of Agriculture-Agricultural Research Service, Plant Genetic Research Unit, University of Missouri Columbia, Missouri, 65211 USA
| | - Karen A. Schlauch
- Nevada INBRE Bioinformatics Core, University of Nevada Reno, Nevada, 89557 USA
- Department of Biochemistry and Molecular Biology, University of Nevada Reno, Nevada, 89557 USA
| | - Richard L. Tillett
- Nevada INBRE Bioinformatics Core, University of Nevada Reno, Nevada, 89557 USA
| | - Won C. Yim
- Department of Biochemistry and Molecular Biology, University of Nevada Reno, Nevada, 89557 USA
| | - Catherine Espinoza
- Division of Plant Sciences, University of Missouri Columbia, Missouri, 65211 USA
| | - Bernard W. M. Wone
- Department of Biology, University of South Dakota, Vermillion, 57069 USA
| | - John C. Cushman
- Department of Biochemistry and Molecular Biology, University of Nevada Reno, Nevada, 89557 USA
| | - Melvin J. Oliver
- U.S. Department of Agriculture-Agricultural Research Service, Plant Genetic Research Unit, University of Missouri Columbia, Missouri, 65211 USA
| |
Collapse
|
40
|
Costa MCD, Artur MAS, Maia J, Jonkheer E, Derks MFL, Nijveen H, Williams B, Mundree SG, Jiménez-Gómez JM, Hesselink T, Schijlen EGWM, Ligterink W, Oliver MJ, Farrant JM, Hilhorst HWM. A footprint of desiccation tolerance in the genome of Xerophyta viscosa. NATURE PLANTS 2017; 3:17038. [PMID: 28346448 DOI: 10.1038/nplants.2017.38] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 02/20/2017] [Indexed: 05/18/2023]
Abstract
Desiccation tolerance is common in seeds and various other organisms, but only a few angiosperm species possess vegetative desiccation tolerance. These 'resurrection species' may serve as ideal models for the ultimate design of crops with enhanced drought tolerance. To understand the molecular and genetic mechanisms enabling vegetative desiccation tolerance, we produced a high-quality whole-genome sequence for the resurrection plant Xerophyta viscosa and assessed transcriptome changes during its dehydration. Data revealed induction of transcripts typically associated with desiccation tolerance in seeds and involvement of orthologues of ABI3 and ABI5, both key regulators of seed maturation. Dehydration resulted in both increased, but predominantly reduced, transcript abundance of genomic 'clusters of desiccation-associated genes' (CoDAGs), reflecting the cessation of growth that allows for the expression of desiccation tolerance. Vegetative desiccation tolerance in X. viscosa was found to be uncoupled from drought-induced senescence. We provide strong support for the hypothesis that vegetative desiccation tolerance arose by redirection of genetic information from desiccation-tolerant seeds.
Collapse
Affiliation(s)
- Maria-Cecília D Costa
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag, 7701 Cape Town, South Africa
| | - Mariana A S Artur
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Julio Maia
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Eef Jonkheer
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
- Bioinformatics Group, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Martijn F L Derks
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
- Bioinformatics Group, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Harm Nijveen
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
- Bioinformatics Group, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Brett Williams
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, PO Box 2434, Queensland 4001, Brisbane, Australia
| | - Sagadevan G Mundree
- Centre for Tropical Crops and Biocommodities, Queensland University of Technology, PO Box 2434, Queensland 4001, Brisbane, Australia
| | - José M Jiménez-Gómez
- Department of Plant Breeding and Genetics, Max Planck Institute for Plant Breeding Research, Carl-von-Linné-Weg 10, 50829 Cologne, Germany
| | - Thamara Hesselink
- Bioscience, Wageningen Plant Research International, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Elio G W M Schijlen
- Bioscience, Wageningen Plant Research International, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Wilco Ligterink
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| | - Melvin J Oliver
- USDA-ARS-MWA-PGRU, 205 Curtis Hall, University of Missouri, Columbia, Missouri 65211, USA
| | - Jill M Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag, 7701 Cape Town, South Africa
| | - Henk W M Hilhorst
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, 6708PB Wageningen, The Netherlands
| |
Collapse
|
41
|
Gross BL, Henk AD, Bonnart R, Volk GM. Changes in transcript expression patterns as a result of cryoprotectant treatment and liquid nitrogen exposure in Arabidopsis shoot tips. PLANT CELL REPORTS 2017; 36:459-470. [PMID: 27999976 DOI: 10.1007/s00299-016-2095-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/08/2016] [Indexed: 06/06/2023]
Abstract
Transcripts related to abiotic stress, oxidation, and wounding were differentially expressed in Arabidopsis shoot tips in response to cryoprotectant and liquid nitrogen treatment. Cryopreservation methods have been implemented in genebanks as a strategy to back-up plant genetic resource collections that are vegetatively propagated. Cryopreservation is frequently performed using vitrification methods, whereby shoot tips are treated with cryoprotectant solutions, such as Plant Vitrification Solution 2 (PVS2) or Plant Vitrification Solution 3 (PVS3); these solutions remove and/or replace freezable water within the meristem cells. We used the model system Arabidopsis thaliana to identify suites of transcripts that are up- or downregulated in response to PVS2 and PVS3 treatment and liquid nitrogen (LN) exposure. Our results suggest that there are many changes in transcript expression in shoot tips as a result of cryoprotection and that these changes exceed the number detected as a result of LN exposure. In total, 180 transcripts showed significant changes in expression level unique to treatment with either the cryoprotectant or cryopreservation followed by recovery. Of these 180 transcripts, 67 were related to stress, defense, wounding, lipid, carbohydrate, abscisic acid, oxidation, temperature (cold/heat), or osmoregulation. The responses of five transcripts were confirmed using qPCR methods. The transcripts responding to PVS2 + LN suggest an oxidative response to this treatment, whereas the PVS3 + LN treatment invoked a more general metabolic response. This work shows that the choice of cryoprotectant can have a major influence on the patterns of transcript expression, presumably due to the level and extent of stress experienced by the shoot tip. As a result, there may be divergent responses of study systems to PVS2 and PVS3 treatments.
Collapse
Affiliation(s)
- Briana L Gross
- University of Minnesota Duluth, 207 Swenson Science Building, 1035 Kirby Drive, Duluth, MN, 55812, USA
| | - Adam D Henk
- USDA-ARS National Laboratory for Genetic Resources Preservation, 1111 S. Mason St., Fort Collins, CO, 80521, USA
| | - Remi Bonnart
- USDA-ARS National Laboratory for Genetic Resources Preservation, 1111 S. Mason St., Fort Collins, CO, 80521, USA
| | - Gayle M Volk
- USDA-ARS National Laboratory for Genetic Resources Preservation, 1111 S. Mason St., Fort Collins, CO, 80521, USA.
| |
Collapse
|
42
|
Zhang Q, Song X, Bartels D. Enzymes and Metabolites in Carbohydrate Metabolism of Desiccation Tolerant Plants. Proteomes 2016; 4:E40. [PMID: 28248249 PMCID: PMC5260972 DOI: 10.3390/proteomes4040040] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 12/01/2016] [Accepted: 12/07/2016] [Indexed: 01/31/2023] Open
Abstract
Resurrection plants can tolerate extreme water loss. Substantial sugar accumulation is a phenomenon in resurrection plants during dehydration. Sugars have been identified as one important factor contributing to desiccation tolerance. Phylogenetic diversity of resurrection plants reflects the diversity of sugar metabolism in response to dehydration. Sugars, which accumulate during dehydration, have been shown to protect macromolecules and membranes and to scavenge reactive oxygen species. This review focuses on the performance of enzymes participating in sugar metabolism during dehydration stress. The relation between sugar metabolism and other biochemical activities is discussed and open questions as well as potential experimental approaches are proposed.
Collapse
Affiliation(s)
- Qingwei Zhang
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
| | - Xiaomin Song
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
| | - Dorothea Bartels
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany.
| |
Collapse
|
43
|
Chen X, Lu L, Mayer KS, Scalf M, Qian S, Lomax A, Smith LM, Zhong X. POWERDRESS interacts with HISTONE DEACETYLASE 9 to promote aging in Arabidopsis. eLife 2016; 5. [PMID: 27873573 PMCID: PMC5119886 DOI: 10.7554/elife.17214] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 10/25/2016] [Indexed: 12/27/2022] Open
Abstract
Leaf senescence is an essential part of the plant lifecycle during which nutrients are re-allocated to other tissues. The regulation of leaf senescence is a complex process. However, the underlying mechanism is poorly understood. Here, we uncovered a novel and the pivotal role of Arabidopsis HDA9 (a RPD3-like histone deacetylase) in promoting the onset of leaf senescence. We found that HDA9 acts in complex with a SANT domain-containing protein POWERDRESS (PWR) and transcription factor WRKY53. Our genome-wide profiling of HDA9 occupancy reveals that HDA9 directly binds to the promoters of key negative regulators of senescence and this association requires PWR. Furthermore, we found that PWR is important for HDA9 nuclear accumulation. This study reveals an uncharacterized epigenetic complex involved in leaf senescence and provides mechanistic insights into how a histone deacetylase along with a chromatin-binding protein contribute to a robust regulatory network to modulate the onset of plant aging.
Collapse
Affiliation(s)
- Xiangsong Chen
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States.,Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Li Lu
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States.,Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Kevin S Mayer
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States.,Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Mark Scalf
- Department of Chemistry, University of Wisconsin-Madison, Madison, United States
| | - Shuiming Qian
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States.,Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Aaron Lomax
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
| | - Lloyd M Smith
- Department of Chemistry, University of Wisconsin-Madison, Madison, United States
| | - Xuehua Zhong
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States.,Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| |
Collapse
|
44
|
Chen X, Lu L, Mayer KS, Scalf M, Qian S, Lomax A, Smith LM, Zhong X. POWERDRESS interacts with HISTONE DEACETYLASE 9 to promote aging in Arabidopsis. eLife 2016. [PMID: 27873573 DOI: 10.7554/elife.17214.001-10.7554/elife.17214.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Leaf senescence is an essential part of the plant lifecycle during which nutrients are re-allocated to other tissues. The regulation of leaf senescence is a complex process. However, the underlying mechanism is poorly understood. Here, we uncovered a novel and the pivotal role of Arabidopsis HDA9 (a RPD3-like histone deacetylase) in promoting the onset of leaf senescence. We found that HDA9 acts in complex with a SANT domain-containing protein POWERDRESS (PWR) and transcription factor WRKY53. Our genome-wide profiling of HDA9 occupancy reveals that HDA9 directly binds to the promoters of key negative regulators of senescence and this association requires PWR. Furthermore, we found that PWR is important for HDA9 nuclear accumulation. This study reveals an uncharacterized epigenetic complex involved in leaf senescence and provides mechanistic insights into how a histone deacetylase along with a chromatin-binding protein contribute to a robust regulatory network to modulate the onset of plant aging.
Collapse
Affiliation(s)
- Xiangsong Chen
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
- Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Li Lu
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
- Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Kevin S Mayer
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
- Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Mark Scalf
- Department of Chemistry, University of Wisconsin-Madison, Madison, United States
| | - Shuiming Qian
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
- Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| | - Aaron Lomax
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
| | - Lloyd M Smith
- Department of Chemistry, University of Wisconsin-Madison, Madison, United States
| | - Xuehua Zhong
- Laboratory of Genetics, University of Wisconsin-Madison, Madison, United States
- Wisconsin Institutes for Discovery, University of Wisconsin-Madison, Madison, United States
| |
Collapse
|
45
|
Ryabova A, Mukae K, Cherkasov A, Cornette R, Shagimardanova E, Sakashita T, Okuda T, Kikawada T, Gusev O. Genetic background of enhanced radioresistance in an anhydrobiotic insect: transcriptional response to ionizing radiations and desiccation. Extremophiles 2016; 21:109-120. [PMID: 27807620 DOI: 10.1007/s00792-016-0888-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/20/2016] [Indexed: 01/02/2023]
Abstract
It is assumed that resistance to ionizing radiation, as well as cross-resistance to other abiotic stresses, is a side effect of the evolutionary-based adaptation of anhydrobiotic animals to dehydration stress. Larvae of Polypedilum vanderplanki can withstand prolonged desiccation as well as high doses of ionizing radiation exposure. For a further understanding of the mechanisms of cross-tolerance to both types of stress exposure, we profiled genome-wide mRNA expression patterns using microarray techniques on the chironomid larvae collected at different stages of desiccation and after exposure to two types of ionizing radiation-70 Gy of high-linear energy transfer (LET) ions (4He) and the same dose of low-LET radiation (gamma rays). In expression profiles, a wide transcriptional response to desiccation stress that much exceeded the amount of up-regulated transcripts to irradiation exposure was observed. An extensive group of coincidently up-regulated overlapped transcripts in response to desiccation and ionizing radiation was found. Among this, overlapped set of transcripts was indicated anhydrobiosis-related genes: antioxidants, late embryogenesis abundant (LEA) proteins, and heat-shock proteins. The most overexpressed group was that of protein-L-isoaspartate/D-aspartate O-methyltransferase (PIMT), while probes, corresponding to LEA proteins, were the most represented. Performed functional analysis showed strongly enriched gene ontology terms associated with protein methylation. In addition, active processes of DNA repair were detected. We assume that the cross-tolerance of the sleeping chironomid to both desiccation and irradiation exposure comes from a complex mechanism of adaptation to anhydrobiosis.
Collapse
Affiliation(s)
- Alina Ryabova
- Institute of Fundamental Biology and Medicine, Kazan Federal University, Kazan, Russia
| | - Kyosuke Mukae
- Graduate School of Science and Engineering, Saitama University, Saitama, Japan.,Anhydrobiosis Research Group, Institute of Agrobiological Sciences, NARO, Tsukuba, Japan
| | - Alexander Cherkasov
- Institute of Fundamental Biology and Medicine, Kazan Federal University, Kazan, Russia
| | - Richard Cornette
- Anhydrobiosis Research Group, Institute of Agrobiological Sciences, NARO, Tsukuba, Japan
| | - Elena Shagimardanova
- Institute of Fundamental Biology and Medicine, Kazan Federal University, Kazan, Russia
| | - Tetsuya Sakashita
- Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology, Takasaki, Japan
| | - Takashi Okuda
- Anhydrobiosis Research Group, Institute of Agrobiological Sciences, NARO, Tsukuba, Japan
| | - Takahiro Kikawada
- Anhydrobiosis Research Group, Institute of Agrobiological Sciences, NARO, Tsukuba, Japan. .,Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan.
| | - Oleg Gusev
- Institute of Fundamental Biology and Medicine, Kazan Federal University, Kazan, Russia. .,Anhydrobiosis Research Group, Institute of Agrobiological Sciences, NARO, Tsukuba, Japan. .,Center for Life Science Technologies, RIKEN, Yokohama, Japan. .,RIKEN Innovation Center, RIKEN, Yokohama, Japan.
| |
Collapse
|
46
|
Zhang Q, Bartels D. Physiological factors determine the accumulation of D-glycero-D-ido-octulose (D-g-D-i-oct) in the desiccation tolerant resurrection plant Craterostigma plantagineum. FUNCTIONAL PLANT BIOLOGY : FPB 2016; 43:684-694. [PMID: 32480496 DOI: 10.1071/fp15278] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 01/24/2016] [Indexed: 06/11/2023]
Abstract
The relationship between the accumulation of D-glycero-D-ido-octulose (D-g-D-i-oct) and sucrose and desiccation tolerance was analysed in leaves of Craterostigma plantagineum Hochst. in various conditions. The D-g-D-i-oct level is strictly controlled in C. plantagienum. Light is an important factor enhancing D-g-D-i-oct synthesis when exogenous sucrose is supplied. Desiccation tolerance is lost during natural senescence and during sugar starvation that leads to senescence. The differences in expression patterns of senescence-related genes and the carbohydrate status between vigorous and senescent plants indicate that desiccation tolerance and accumulation of octulose in C. plantagineum is dependent on the developmental stage. Sucrose synthesis is affected more by dehydration than by senescence. D-g-D-i-oct has superior hydroxyl scavenging ability to other common sugars accumulating in C. plantagineum. In the presence of reactive oxygen species (ROS) D-g-D-i-oct levels decreased, probably as a defence reaction.
Collapse
Affiliation(s)
- Qingwei Zhang
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany
| | - Dorothea Bartels
- Institute of Molecular Physiology and Biotechnology of Plants (IMBIO), University of Bonn, Kirschallee 1, 53115 Bonn, Germany
| |
Collapse
|
47
|
Barak S, Farrant JM. Extremophyte adaptations to salt and water deficit stress. FUNCTIONAL PLANT BIOLOGY : FPB 2016; 43:v-x. [PMID: 32480487 DOI: 10.1071/fpv43n7_fo] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Plants that can survive and even thrive in extreme environments (extremophytes) are likely treasure boxes of plant adaptations to environmental stresses. These species represent excellent models for understanding mechanisms of stress tolerance that may not be present in stress-sensitive species, as well as for identifying genetic determinants to develop stress-tolerant crops. This special issue of Functional Plant Biology focuses on physiological and molecular processes that enable extremophytes to naturally survive high levels of salt or desiccation.
Collapse
Affiliation(s)
- Simon Barak
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, 8499000, Israel
| | - Jill M Farrant
- Department of Molecular and Cell Biology, University of Cape Town, Private Bag X3, Rondebosch, 7701, South Africa
| |
Collapse
|
48
|
Deeba F, Pandey AK, Pandey V. Organ Specific Proteomic Dissection of Selaginella bryopteris Undergoing Dehydration and Rehydration. FRONTIERS IN PLANT SCIENCE 2016; 7:425. [PMID: 27092152 PMCID: PMC4824794 DOI: 10.3389/fpls.2016.00425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 03/18/2016] [Indexed: 05/06/2023]
Abstract
To explore molecular mechanisms underlying the physiological response of Selaginella bryopteris, a comprehensive proteome analysis was carried out in roots and fronds undergoing dehydration and rehydration. Plants were dehydrated for 7 days followed by 2 and 24 h of rehydration. In roots out of 59 identified spots, 58 protein spots were found to be up-regulated during dehydration stress. The identified proteins were related to signaling, stress and defense, protein and nucleotide metabolism, carbohydrate and energy metabolism, storage and epigenetic control. Most of these proteins remained up-regulated on first rehydration, suggesting their role in recovery phase also. Among the 90 identified proteins in fronds, about 49% proteins were up-regulated during dehydration stress. Large number of ROS scavenging proteins was enhanced on dehydration. Many other proteins involved in energy, protein turnover and nucleotide metabolism, epigenetic control were also highly upregulated. Many photosynthesis related proteins were upregulated during stress. This would have helped plant to recover rapidly on rehydration. This study provides a comprehensive picture of different cellular responses elucidated by the proteome changes during dehydration and rehydration in roots and fronds as expected from a well-choreographed response from a resurrection plant.
Collapse
Affiliation(s)
| | | | - Vivek Pandey
- Plant Ecology and Environmental Science, CSIR-National Botanical Research InstituteLucknow, India
| |
Collapse
|
49
|
Li S, Feifel M, Karimi Z, Schuldt B, Choat B, Jansen S. Leaf gas exchange performance and the lethal water potential of five European species during drought. TREE PHYSIOLOGY 2016; 36:179-92. [PMID: 26614785 DOI: 10.1093/treephys/tpv117] [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: 04/30/2015] [Accepted: 10/05/2015] [Indexed: 05/04/2023]
Abstract
Establishing physiological thresholds to drought-induced mortality in a range of plant species is crucial in understanding how plants respond to severe drought. Here, five common European tree species were selected (Acer campestre L., Acer pseudoplatanus L., Carpinus betulus L., Corylus avellana L. and Fraxinus excelsior L.) to study their hydraulic thresholds to mortality. Photosynthetic parameters during desiccation and the recovery of leaf gas exchange after rewatering were measured. Stem vulnerability curves and leaf pressure-volume curves were investigated to understand the hydraulic coordination of stem and leaf tissue traits. Stem and root samples from well-watered and severely drought-stressed plants of two species were observed using transmission electron microscopy to visualize mortality of cambial cells. The lethal water potential (ψlethal) correlated with stem P99 (i.e., the xylem water potential at 99% loss of hydraulic conductivity, PLC). However, several plants that were stressed beyond the water potential at 100% PLC showed complete recovery during the next spring, which suggests that the ψlethal values were underestimated. Moreover, we observed a 1 : 1 relationship between the xylem water potential at the onset of embolism and stomatal closure, confirming hydraulic coordination between leaf and stem tissues. Finally, ultrastructural changes in the cytoplasm of cambium tissue and mortality of cambial cells are proposed to provide an alternative approach to investigate the point of no return associated with plant death.
Collapse
Affiliation(s)
- Shan Li
- Institute for Systematic Botany and Ecology, Ulm University, D-89081 Ulm, Germany
| | - Marion Feifel
- Institute for Systematic Botany and Ecology, Ulm University, D-89081 Ulm, Germany
| | - Zohreh Karimi
- Institute for Systematic Botany and Ecology, Ulm University, D-89081 Ulm, Germany Department of Biology, Faculty of Science, Golestan University, 36154 Gorgan, Iran
| | - Bernhard Schuldt
- Plant Ecology, Albrecht von Haller Institute for Plant Sciences, University of Göttingen, D-37077 Göttingen, Germany
| | - Brendan Choat
- University of Western Sydney, Hawkesbury Institute for the Environment, Richmond, NSW 2753, Australia
| | - Steven Jansen
- Institute for Systematic Botany and Ecology, Ulm University, D-89081 Ulm, Germany
| |
Collapse
|
50
|
Ksouri N, Jiménez S, Wells CE, Contreras-Moreira B, Gogorcena Y. Transcriptional Responses in Root and Leaf of Prunus persica under Drought Stress Using RNA Sequencing. FRONTIERS IN PLANT SCIENCE 2016; 7:1715. [PMID: 27933070 PMCID: PMC5120087 DOI: 10.3389/fpls.2016.01715] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/31/2016] [Indexed: 05/02/2023]
Abstract
Prunus persica L. Batsch, or peach, is one of the most important crops and it is widely established in irrigated arid and semi-arid regions. However, due to variations in the climate and the increased aridity, drought has become a major constraint, causing crop losses worldwide. The use of drought-tolerant rootstocks in modern fruit production appears to be a useful method of alleviating water deficit problems. However, the transcriptomic variation and the major molecular mechanisms that underlie the adaptation of drought-tolerant rootstocks to water shortage remain unclear. Hence, in this study, high-throughput sequencing (RNA-seq) was performed to assess the transcriptomic changes and the key genes involved in the response to drought in root tissues (GF677 rootstock) and leaf tissues (graft, var. Catherina) subjected to 16 days of drought stress. In total, 12 RNA libraries were constructed and sequenced. This generated a total of 315 M raw reads from both tissues, which allowed the assembly of 22,079 and 17,854 genes associated with the root and leaf tissues, respectively. Subsets of 500 differentially expressed genes (DEGs) in roots and 236 in leaves were identified and functionally annotated with 56 gene ontology (GO) terms and 99 metabolic pathways, which were mostly associated with aminobenzoate degradation and phenylpropanoid biosynthesis. The GO analysis highlighted the biological functions that were exclusive to the root tissue, such as "locomotion," "hormone metabolic process," and "detection of stimulus," indicating the stress-buffering role of the GF677 rootstock. Furthermore, the complex regulatory network involved in the drought response was revealed, involving proteins that are associated with signaling transduction, transcription and hormone regulation, redox homeostasis, and frontline barriers. We identified two poorly characterized genes in P. persica: growth-regulating factor 5 (GRF5), which may be involved in cellular expansion, and AtHB12, which may be involved in root elongation. The reliability of the RNA-seq experiment was validated by analyzing the expression patterns of 34 DEGs potentially involved in drought tolerance using quantitative reverse transcription polymerase chain reaction. The transcriptomic resources generated in this study provide a broad characterization of the acclimation of P. persica to drought, shedding light on the major molecular responses to the most important environmental stressor.
Collapse
Affiliation(s)
- Najla Ksouri
- Department of Pomology, Estación Experimental de Aula Dei-Consejo Superior de Investigaciones CientíficasZaragoza, Spain
| | - Sergio Jiménez
- Department of Pomology, Estación Experimental de Aula Dei-Consejo Superior de Investigaciones CientíficasZaragoza, Spain
| | | | - Bruno Contreras-Moreira
- Laboratory of Computational and Structural Biology, Department of Genetics and Plant Production, Estación Experimental de Aula Dei – Consejo Superior de Investigaciones CientíficasZaragoza, Spain
- Fundación ARAIDZaragoza, Spain
- *Correspondence: Yolanda Gogorcena, Bruno Contreras-Moreira,
| | - Yolanda Gogorcena
- Department of Pomology, Estación Experimental de Aula Dei-Consejo Superior de Investigaciones CientíficasZaragoza, Spain
- *Correspondence: Yolanda Gogorcena, Bruno Contreras-Moreira,
| |
Collapse
|