Grafting with non-suckering rootstock increases drought tolerance in Corylus avellana L. through physiological and biochemical adjustments.

IF 5.4 2区 生物学 Q1 PLANT SCIENCES
Amedeo Moine, Walter Chitarra, Luca Nerva, Chiara Agliassa, Giorgio Gambino, Francesca Secchi, Chiara Pagliarani, Paolo Boccacci
{"title":"Grafting with non-suckering rootstock increases drought tolerance in Corylus avellana L. through physiological and biochemical adjustments.","authors":"Amedeo Moine, Walter Chitarra, Luca Nerva, Chiara Agliassa, Giorgio Gambino, Francesca Secchi, Chiara Pagliarani, Paolo Boccacci","doi":"10.1111/ppl.70003","DOIUrl":null,"url":null,"abstract":"<p><p>Physiological and molecular mechanisms underpinning plant water stress responses still need deeper investigation. Particularly, the analysis of rootstock-mediated signals represents a complex research field, offering potential applicative perspectives for improving the adaptation of fruit crops to environmental stresses. Nonetheless, fundamental knowledge on this subject needs to be widened, especially in some woody species, including European hazelnut (Corylus avellana L). To fill these gaps, we inspected dynamic changes in gas exchanges and stem water potential of two hazelnut genotypes, the 'San Giovanni' cultivar (SG), the non-suckering rootstock 'Dundee' (D), and their heterograft (SG/D), during a drought stress treatment followed by recovery. Biometric and anatomical traits were measured at the beginning and end of water stress imposition. Additionally, differences in abscisic acid and proline contents were analysed in leaves and roots taken from well-irrigated, stressed and recovered plants, in combination with expression profiles of candidate genes. Grafting with 'Dundee' rootstock positively affected the ability of 'San Giovanni' plants to endure drought by increasing their intrinsic water use efficiency and facilitating post-rehydration recovery. Although anatomical adjustments occurred, we showed that the improved stress adaptation of grafted plants rather depended on biochemical modifications, resulting in increased root proline concentrations and leaf ABA accumulation both during water stress and recovery. We also proved that those metabolic changes were controlled by a differential reprogramming of genes involved in hormone metabolism and stress defence. Grafting with non-suckering rootstocks could therefore represent a promising and environmentally-friendly strategy for improving the adaptability of hazelnut to water deficit.</p>","PeriodicalId":20164,"journal":{"name":"Physiologia plantarum","volume":"176 6","pages":"e70003"},"PeriodicalIF":5.4000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11632140/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physiologia plantarum","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1111/ppl.70003","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0

Abstract

Physiological and molecular mechanisms underpinning plant water stress responses still need deeper investigation. Particularly, the analysis of rootstock-mediated signals represents a complex research field, offering potential applicative perspectives for improving the adaptation of fruit crops to environmental stresses. Nonetheless, fundamental knowledge on this subject needs to be widened, especially in some woody species, including European hazelnut (Corylus avellana L). To fill these gaps, we inspected dynamic changes in gas exchanges and stem water potential of two hazelnut genotypes, the 'San Giovanni' cultivar (SG), the non-suckering rootstock 'Dundee' (D), and their heterograft (SG/D), during a drought stress treatment followed by recovery. Biometric and anatomical traits were measured at the beginning and end of water stress imposition. Additionally, differences in abscisic acid and proline contents were analysed in leaves and roots taken from well-irrigated, stressed and recovered plants, in combination with expression profiles of candidate genes. Grafting with 'Dundee' rootstock positively affected the ability of 'San Giovanni' plants to endure drought by increasing their intrinsic water use efficiency and facilitating post-rehydration recovery. Although anatomical adjustments occurred, we showed that the improved stress adaptation of grafted plants rather depended on biochemical modifications, resulting in increased root proline concentrations and leaf ABA accumulation both during water stress and recovery. We also proved that those metabolic changes were controlled by a differential reprogramming of genes involved in hormone metabolism and stress defence. Grafting with non-suckering rootstocks could therefore represent a promising and environmentally-friendly strategy for improving the adaptability of hazelnut to water deficit.

求助全文
约1分钟内获得全文 求助全文
来源期刊
Physiologia plantarum
Physiologia plantarum 生物-植物科学
CiteScore
11.00
自引率
3.10%
发文量
224
审稿时长
3.9 months
期刊介绍: Physiologia Plantarum is an international journal committed to publishing the best full-length original research papers that advance our understanding of primary mechanisms of plant development, growth and productivity as well as plant interactions with the biotic and abiotic environment. All organisational levels of experimental plant biology – from molecular and cell biology, biochemistry and biophysics to ecophysiology and global change biology – fall within the scope of the journal. The content is distributed between 5 main subject areas supervised by Subject Editors specialised in the respective domain: (1) biochemistry and metabolism, (2) ecophysiology, stress and adaptation, (3) uptake, transport and assimilation, (4) development, growth and differentiation, (5) photobiology and photosynthesis.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信