1
|
Hui T, Bao L, Shi X, Zhang H, Xu K, Wei X, Liang J, Zhang R, Qian W, Zhang M, Su C, Jiao F. Grafting seedling rootstock strengthens tolerance to drought stress in polyploid mulberry (Morus alba L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108441. [PMID: 38377887 DOI: 10.1016/j.plaphy.2024.108441] [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: 11/26/2023] [Revised: 02/06/2024] [Accepted: 02/14/2024] [Indexed: 02/22/2024]
Abstract
The economically adaptable mulberry (Morus alba L.) has a long history of grafting in China, yet the physiological mechanisms and advantages in drought tolerance remain unexplored. In our study, we investigated the responses of self-rooted 2X (diploid), 3X (triploid), and 4X (tetraploid) plants, as well as polyploid plants grafted onto diploid seedling rootstocks (2X/2X, 3X/2X, and 4X/2X) under drought stress. We found that self-rooted diploid plants exhibited the most severe phenotypic damage, lowest water retention, photosynthetic capacity, and the least effective osmotic stress adjustment compared to tetraploid and triploid plants. However, grafted diploid and triploid plants showed effective mitigation of drought-induced damage, with higher relative water content and improved soil water retention. Grafted plants also improved the photosystem response to drought stress through elevated photosynthetic potential, closed stomatal aperture, and faster recovery of chlorophyll biosynthesis in the leaves. Additionally, grafted plants altered osmotic protective compound levels, including starch, soluble sugar, and proline content, thereby enhancing drought resistance. Absolute quantification PCR indicated that the expression levels of proline synthesis-related genes in grafted plants were not influenced after drought stress, whereas they were significantly increased in self-rooted plants. Consequently, our findings support that self-rooted triploid and tetraploid mulberries exhibited superior drought resistance compared to diploid plants. Moreover, grafting onto seedling rootstocks enhanced tolerance against drought stress in diploid and triploid mulberry, but not in tetraploid. Our study provides valuable insights for a comprehensive analysis of physiological effects in response to drought stress between stem-roots and seedling rootstocks.
Collapse
Affiliation(s)
- Tian Hui
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Lijun Bao
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Xiang Shi
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Huihui Zhang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Ke Xu
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Xinlan Wei
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Jiajun Liang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Rui Zhang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Wei Qian
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Minjuan Zhang
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Chao Su
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Feng Jiao
- The Sericultural and Silk Research Institute, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| |
Collapse
|
2
|
Bolat I, Korkmaz K, Dogan M, Turan M, Kaya C, Seyed Hajizadeh H, Kaya O. Enhancing drought, heat shock, and combined stress tolerance in Myrobalan 29C rootstocks with foliar application of potassium nitrate. BMC PLANT BIOLOGY 2024; 24:140. [PMID: 38413882 PMCID: PMC10898176 DOI: 10.1186/s12870-024-04811-4] [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: 07/22/2023] [Accepted: 02/09/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Drought and heat stress are significant concerns to food security in arid and semi-arid regions, where global warming is predicted to increase both frequency and severity. To cope with these challenges, the use of drought-tolerant plants or technological interventions are essential. In this study, the effects of foliar potassium nitrate (KNO3) application on the stress tolerance and recovery of Myrobalan 29C rootstocks (Prunus cerasifera Ehrh.) were evaluated. These rootstocks are widely recognized for their adaptability and are extensively used in fruit production. To assess their response, the rootstocks were subjected to drought, heat shock, or a combination of both stressors. Additionally, they were treated with 1.0% KNO3 via foliar application. Throughout the stress and recovery periods, various morphological, physiological, and bio-chemical parameters were measured. RESULTS Based on our results, KNO3 treatment improved LRWC, Chl stability, SC, and key stress markers like proline, MDA, H2O2, along with antioxidant enzymes CAT, SOD, POD during both stress and recovery phases. Moreover, our results emphasized KNO3's critical role in hormone regulation under stress. KNO3 application significantly altered hormone levels, notably increasing ABA during drought and heat shock stress, essential for stress response and adaptation. In contrast, IAA, GA, and cytokinin's significantly increased during the recovery phase in KNO3-treated plants, indicating improved growth regulation and stress recovery. In addition, KNO3 application improved the recovery process of the rootstocks by restoring their physiological and biochemical functions. CONCLUSION This study suggests that the application of foliar KNO3 is an effective technique for enhancing the drought and heat tolerance as well as the recovery of Myrobalan 29C rootstocks. These results hold significant value for farmers, policymakers, and researchers, as they offer crucial insights into the development of drought-tolerant crops and the management of climate change's adverse effects on agriculture.
Collapse
Affiliation(s)
- Ibrahim Bolat
- Faculty of Agriculture, Department of Horticulture, Harran University, Sanliurfa, Türkiye
| | - Kubra Korkmaz
- Graduate School of Natural and Applied Sciences, Department of Horticulture, Harran University, Sanliurfa, Türkiye
| | - Meral Dogan
- Graduate School of Natural and Applied Sciences, Department of Horticulture, Harran University, Sanliurfa, Türkiye
| | - Metin Turan
- Faculty of Economy and Administrative Science, Yeditepe University, Istanbul, 34755, Türkiye
| | - Cengiz Kaya
- Soil Science and Plant Nutrition Department, Harran University, Sanliurfa, Türkiye.
| | - Hanifeh Seyed Hajizadeh
- Department of Horticulture, Faculty of Agriculture, University of Maragheh, Maragheh, 55136-553, Iran.
| | - Ozkan Kaya
- Republic of Turkey Ministry of Agriculture and Forestry, Erzincan Horticultural Research Institute, Erzincan, 24060, Türkiye.
- Department of Plant Sciences, North Dakota State University, Fargo, ND, 58102, USA.
| |
Collapse
|
3
|
Liao L, Li Y, Bi X, Xiong B, Wang X, Deng H, Zhang M, Sun G, Jin Z, Huang Z, Wang Z. Transcriptome analysis of Harumi tangor fruits: Insights into interstock-mediated fruit quality. FRONTIERS IN PLANT SCIENCE 2022; 13:995913. [PMID: 36311145 PMCID: PMC9608513 DOI: 10.3389/fpls.2022.995913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 09/30/2022] [Indexed: 05/27/2023]
Abstract
Harumi tangor fruit with Ponkan as an interstock contains significantly higher levels of total soluble solids compared to Harumi tangor fruit cv.with no interstock. Transcriptome analysis of two graft combinations (Harumi/Hongjv (HP) and cv. cv.Harumi/Ponkan/Hongjv (HPP)) was conducted to identify the genes related to use of the Ponkan interstock. Soluble sugars and organic acids were also measured in the two graft combinations. The results showed that the contents of sucrose, glucose, and fructose were higher in the fruits of HPP than in those of HP; additionally, the titratable acid levels were lower in grafts with interstocks than in grafts without interstocks. Transcriptome analysis of HPP and HP citrus revealed that the interstock regulated auxin and ethylene signals, sugar and energy metabolism, and cell wall metabolism. Trend and Venn analyses suggested that genes related to carbohydrate-, energy-, and hormone-metabolic activities were more abundant in HPP plants than in HP plants during different periods. Moreover, weighted gene co-expression network analysis demonstrated that carbohydrates, hormones, cell wall, and transcription factors may be critical for interstock-mediated citrus fruit development and ripening. The contents of ethylene, auxin, cytokinin, transcription factors, starch, sucrose, glucose, fructose, and total sugar in HPP plants differed considerably than those in HP fruits. Interstocks may help to regulate the early ripening and quality of citrus fruit through the above-mentioned pathways. These findings provide information on the effects of interstock on plant growth and development.
Collapse
Affiliation(s)
- Ling Liao
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Yunjie Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Xiaoyi Bi
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Bo Xiong
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Xun Wang
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Honghong Deng
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Mingfei Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Guochao Sun
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| | - Zhenghua Jin
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Zehao Huang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
| | - Zhihui Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China
| |
Collapse
|
4
|
Yang L, Xia L, Zeng Y, Han Q, Zhang S. Grafting enhances plants drought resistance: Current understanding, mechanisms, and future perspectives. FRONTIERS IN PLANT SCIENCE 2022; 13:1015317. [PMID: 36275555 PMCID: PMC9583147 DOI: 10.3389/fpls.2022.1015317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/20/2022] [Indexed: 05/28/2023]
Abstract
Drought, one of the most severe and complex abiotic stresses, is increasingly occurring due to global climate change and adversely affects plant growth and yield. Grafting is a proven and effective tool to enhance plant drought resistance ability by regulating their physiological and molecular processes. In this review, we have summarized the current understanding, mechanisms, and perspectives of the drought stress resistance of grafted plants. Plants resist drought through adaptive changes in their root, stem, and leaf morphology and structure, stomatal closure modulation to reduce transpiration, activating osmoregulation, enhancing antioxidant systems, and regulating phytohormones and gene expression changes. Additionally, the mRNAs, miRNAs and peptides crossing the grafted healing sites also confer drought resistance. However, the interaction between phytohormones, establishment of the scion-rootstock communication through genetic materials to enhance drought resistance is becoming a hot research topic. Therefore, our review provides not only physiological evidences for selecting drought-resistant rootstocks or scions, but also a clear understanding of the potential molecular effects to enhance drought resistance using grafted plants.
Collapse
Affiliation(s)
- Le Yang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Linchao Xia
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yi Zeng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Qingquan Han
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
- The Engineering Research Institute of Agriculture and Forestry, Ludong University, Yantai, China
| | - Sheng Zhang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| |
Collapse
|
5
|
Lu Z, Li J, Yuan C, Xi B, Yang B, Meng X, Guo T, Yue Y, Gao Y, Liu J, Sun X. Evaluation of Mutton Quality Characteristics of Dongxiang Tribute Sheep Based on Membership Function and Gas Chromatography and Ion Mobility Spectrometry. Front Nutr 2022; 9:852399. [PMID: 35600824 PMCID: PMC9122487 DOI: 10.3389/fnut.2022.852399] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/07/2022] [Indexed: 01/13/2023] Open
Abstract
Dongxiang tribute sheep have a history of use in food dishes such as "Dongxiang Handgrip," which dates back hundreds of years and is a favorite halal food in northwestern China. However, little is known about the mutton quality characteristics of Dongxiang tribute sheep. Here, we measured the sensory characteristics, nutritional quality, and flavor substances to comprehensively evaluate the mutton quality characteristics of these sheep. The mutton qualities of Dongxiang tribute, Tibetan, Ujumqin, and Hu sheep were comprehensively evaluated by membership function. Subsequently, the volatile components in mutton samples from 30 Dongxiang tribute sheep were detected via gas chromatography and ion mobility spectrometry (GC-IMS), and their fingerprints were established. The result of meat quality revealed that the shear force, the contents of protein, essential amino acid (EAA), non-essential amino acid (NEAA), and n-6/n-3 ratio of Dongxiang tribute mutton were better than the other three breeds. Membership functions were calculated for 10 physical and chemical indexes of mutton quality, and the comprehensive membership function values of the four breeds in order of highest to lowest mutton quality were Tibetan sheep (0.76) > Dongxiang tribute sheep (0.49) > Hu sheep (0.46) > Ujumqin sheep (0.33). Thirty volatile compounds were identified via GC-IMS: seven alcohols, eight aldehydes, five ketones, two esters, two phenols, one ether, one furan, one acid, two hydrocarbons, and one pyrazine. Ketones, aldehydes, and alcohols were the main volatile compounds forming the flavor of Dongxiang tribute sheep mutton. The reliability of the results was validated by PCA (principal component analysis) and similarity analyses. Our results provide reference value for consumers of mutton in China.
Collapse
Affiliation(s)
- Zengkui Lu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Jianye Li
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Chao Yuan
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Bin Xi
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Quality Safety Risk Assessment of Animal Products, Ministry of Agriculture, Lanzhou, China
| | - Bohui Yang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xianyu Meng
- Dongxiang Autonomous County Animal Husbandry Development Center, Linxia, China
| | - Tingting Guo
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yaojing Yue
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yaqin Gao
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Quality Safety Risk Assessment of Animal Products, Ministry of Agriculture, Lanzhou, China
| | - Jianbin Liu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Xiaoping Sun
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, China
- Sheep Breeding Engineering Technology Research Center of Chinese Academy of Agricultural Sciences, Lanzhou, China
| |
Collapse
|
6
|
Evaluating the Performance of Hyperspectral Leaf Reflectance to Detect Water Stress and Estimation of Photosynthetic Capacities. REMOTE SENSING 2021. [DOI: 10.3390/rs13112160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Advanced techniques capable of early, rapid, and nondestructive detection of the impacts of drought on fruit tree and the measurement of the underlying photosynthetic traits on a large scale are necessary to meet the challenges of precision farming and full prediction of yield increases. We tested the application of hyperspectral reflectance as a high-throughput phenotyping approach for early identification of water stress and rapid assessment of leaf photosynthetic traits in citrus trees by conducting a greenhouse experiment. To this end, photosynthetic CO2 assimilation rate (Pn), stomatal conductance (Cond) and transpiration rate (Trmmol) were measured with gas-exchange approaches alongside measurements of leaf hyperspectral reflectance from citrus grown across a gradient of soil drought levels six times, during 20 days of stress induction and 13 days of rewatering. Water stress caused Pn, Cond, and Trmmol rapid and continuous decline throughout the entire drought period. The upper layer was more sensitive to drought than middle and lower layers. Water stress could also bring continuous and dynamic changes of the mean spectral reflectance and absorptance over time. After trees were rewatered, these differences were not obvious. The original reflectance spectra of the four water stresses were surprisingly of low diversity and could not track drought responses, whereas specific hyperspectral spectral vegetation indices (SVIs) and absorption features or wavelength position variables presented great potential. The following machine-learning algorithms: random forest (RF), support vector machine (SVM), gradient boost (GDboost), and adaptive boosting (Adaboost) were used to develop a measure of photosynthesis from leaf reflectance spectra. The performance of four machine-learning algorithms were assessed, and RF algorithm yielded the highest predictive power for predicting photosynthetic parameters (R2 was 0.92, 0.89, and 0.88 for Pn, Cond, and Trmmol, respectively). Our results indicated that leaf hyperspectral reflectance is a reliable and stable method for monitoring water stress and yield increase, with great potential to be applied in large-scale orchards.
Collapse
|