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Abiotic Stress Responses in Woody Plants
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Abiotic Stress Responses in Woody Plants

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: closed (30 November 2022) | Viewed by 11859

Special Issue Editors

Dr. Sylvie Renault

E-Mail Website
Guest Editor
Department of Biological Sciences, University of Manitoba, W479 Duff Roblin Bldg, Winnipeg, MB R3T 2N2, Canada
Interests: plant stress physiology; salinity tolerance of northern woody plants, medicinal plants, and crops; cross tolerance (salinity and cold; salinity and herbivory); revegetation of mine tailings; land reclamation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Janusz J. Zwiazek

E-Mail Website
Guest Editor
Department of Renewable Resources, University of Alberta, Edmonton, AB T6G 2E3, Canada
Interests: plant water relations; aquaporin function; plant stress physiology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Forest ecosystems are likely to experience an increase in abiotic stresses with climate change that could severely affect plant growth and survival. Understanding how woody plants respond to abiotic stresses, such as drought, flooding, extreme temperatures, and salinity, using well-designed studies, will help us to select the most appropriate species for re-establishment of forest ecosystems.

This Special Issue of Plants welcomes reviews, as well as research articles, on woody plant responses to abiotic stresses. A large number of genes involved in abiotic stress response in woody plants have been characterized; however, to fully understand the mechanisms of stress resistance, whole plant physiology is critical. There is a serious void of research in this area that needs to be addressed to integrate advances in molecular biology with the physiology of the plants.

Dr. Sylvie Renault
Prof. Dr. Janusz Zwiazek
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plant stress physiology
  • abiotic stress tolerance
  • abiotic stress resistance
  • abiotic stress
  • drought
  • salinity
  • cold stress
  • heat stress
  • flooding
  • heavy metals
  • woody plants
  • forest ecosystem
  • water relations
  • gas exchange
  • plant growth
  • plant metabolism

Published Papers (6 papers)

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Research

12 pages, 3390 KiB  
Article
Genome-Wide Analysis and Expression of Cyclic Nucleotide–Gated Ion Channel (CNGC) Family Genes under Cold Stress in Mango (Mangifera indica)
by Yajie Zhang, Yubo Li, Jing Yang, Xinli Yang, Shengbei Chen, Zhouli Xie, Mingjie Zhang, Yanlei Huang, Jinghong Zhang and Xing Huang
Plants 2023, 12(3), 592; https://doi.org/10.3390/plants12030592 - 29 Jan 2023
Cited by 4 | Viewed by 1445
Abstract
The ‘king of fruits’ mango (Mangifera indica) is widely cultivated in tropical areas and has been threatened by frequent extreme cold weather. Cyclic nucleotide–gated ion channel (CNGC) genes have an important function in the calcium-mediated development and cold response [...] Read more.
The ‘king of fruits’ mango (Mangifera indica) is widely cultivated in tropical areas and has been threatened by frequent extreme cold weather. Cyclic nucleotide–gated ion channel (CNGC) genes have an important function in the calcium-mediated development and cold response of plants. However, few CNGC-related studies are reported in mango, regardless of the mango cold stress response. In this study, we identified 43 CNGC genes in mango showing tissue-specific expression patterns. Five MiCNGCs display more than 3-fold gene expression induction in the fruit peel and leaf under cold stress. Among these, MiCNGC9 and MiCNGC13 are significantly upregulated below 6 °C, suggesting their candidate functions under cold stress. Furthermore, cell membrane integrity was damaged at 2 °C in the mango leaf, as shown by the content of malondialdehyde (MDA), and eight MiCNGCs are positively correlated with MDA contents. The high correlation between MiCNGCs and MDA implies MiCNGCs might regulate cell membrane integrity by regulating MDA content. Together, these findings provide a valuable guideline for the functional characterization of CNGC genes and will benefit future studies related to cold stress and calcium transport in mango. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Woody Plants)
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15 pages, 3799 KiB  
Article
Effect of Elevated CO2 and Drought on Biomass, Gas Exchange and Wood Structure of Eucalyptus grandis
by Layssa da Silva Costa, Jasmin Vuralhan-Eckert and Jörg Fromm
Plants 2023, 12(1), 148; https://doi.org/10.3390/plants12010148 - 28 Dec 2022
Viewed by 1867
Abstract
Juvenile Eucalyptus grandis were exposed to drought and elevated CO2 to evaluate the independent and interactive effects on growth, gas exchange and wood structure. Trees were grown in a greenhouse at ambient and elevated CO2 (aCO2, 410 ppm; eCO [...] Read more.
Juvenile Eucalyptus grandis were exposed to drought and elevated CO2 to evaluate the independent and interactive effects on growth, gas exchange and wood structure. Trees were grown in a greenhouse at ambient and elevated CO2 (aCO2, 410 ppm; eCO2, 950 ppm), in combination with daily irrigation and cyclic drought during one growing season. The results demonstrated that drought stress limited intercellular CO2 concentration, photosynthesis, stomatal conductance, and transpiration, which correlated with a lower increment in height, stem diameter and biomass. Drought also induced formation of frequent and narrow vessels accompanied by a reduction in vessel lumen area. Conversely, elevated CO2 increased intercellular CO2 concentration as well as photosynthesis, and partially closed stomata, leading to a more efficient water use, especially under drought. There was a clear trend towards greater biomass accumulation at eCO2, although the results did not show statistical significance for this parameter. We observed an increase in vessel diameter and vessel lumen area at eCO2, and, contrarily, the vessel frequency decreased. Thus, we conclude that eCO2 delayed the effects of drought and potentialized growth. However, results on vessel anatomy suggest that increasing vulnerability to cavitation due to formation of larger vessels may counteract the beneficial effects of eCO2 under severe drought. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Woody Plants)
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18 pages, 4903 KiB  
Article
The Peach (Prunus persica) CBL and CIPK Family Genes: Protein Interaction Profiling and Expression Analysis in Response to Various Abiotic Stresses
by Keli Qiu, Haifa Pan, Yu Sheng, Yunyun Wang, Pei Shi, Qingmei Xie, Jinyun Zhang and Hui Zhou
Plants 2022, 11(21), 3001; https://doi.org/10.3390/plants11213001 - 7 Nov 2022
Cited by 3 | Viewed by 1470
Abstract
The plant calcineurin B-like protein–CBL interacting protein kinase (CBL–CIPK) signaling pathway is a Ca2+-related signaling pathway that responds strongly to both biological and abiotic environmental stimuli. This study identified eight CBL and eighteen CIPK genes from peach for the first time. Their basic [...] Read more.
The plant calcineurin B-like protein–CBL interacting protein kinase (CBL–CIPK) signaling pathway is a Ca2+-related signaling pathway that responds strongly to both biological and abiotic environmental stimuli. This study identified eight CBL and eighteen CIPK genes from peach for the first time. Their basic properties and gene structure were analyzed, and the CBL and CIPK members from Arabidopsis and apple were combined to study their evolutionary relationships. Using RT-qPCR and RNA-seq data, we detected the expression patterns of PprCBLs and PprCIPKs in different tissues and fruit development stages of peach. Among them, the expression levels of PprCBL1 and PprCIPK18 were stable in various tissues and stages. The expression patterns of other members showed specificity between cultivars and developmental stages. By treating shoots with drought and salt stress simulated using PEG6000 and NaCl, it was found that PprCIPK3, PprCIPK6, PprCIPK15 and PprCIPK16 were strongly responsive to salt stress, and PprCIPK3, PprCIPK4, PprCIPK10, PprCIPK14, PprCIPK15, PprCIPK16 and PprCIPK18 were sensitive to drought stress. Three genes, PprCIPK3, PprCIPK15 and PprCIPK16, were sensitive to both salt and drought stress. We cloned four PprCBL and several PprCIPK genes and detected their interaction by yeast two-hybrid assay (Y2H). The results of Y2H show not only the evolutionary conservation of the interaction network of CBL–CIPK but also the specificity among different species. In conclusion, CBL and CIPK genes are important in peach and play an important role in the response to various abiotic stresses. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Woody Plants)
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9 pages, 1074 KiB  
Article
The Effect of Frankia and Hebeloma crustiliniforme on Alnus alnobetula subsp. Crispa Growing in Saline Soil
by Haoran Chen, Sylvie Renault and John Markham
Plants 2022, 11(14), 1860; https://doi.org/10.3390/plants11141860 - 16 Jul 2022
Cited by 2 | Viewed by 1428
Abstract
The mining of the oil sands region of Canada’s boreal forest creates disturbed land with elevated levels of salts. Understanding how native plants respond to salt stress is critical in reclaiming these lands. The native species, Alnus alnobetula subsp. crispa forms nitrogen-fixing nodules [...] Read more.
The mining of the oil sands region of Canada’s boreal forest creates disturbed land with elevated levels of salts. Understanding how native plants respond to salt stress is critical in reclaiming these lands. The native species, Alnus alnobetula subsp. crispa forms nitrogen-fixing nodules with Frankia, and ectomycorrhizae with a number of fungal species. These relationships may make the plant particularly well suited for restoring disturbed land. We inoculated A. alnobetula subsp. crispa with Frankia and Hebeloma crustiliniforme and exposed the plants to 0, 50, or 100 mM NaCl for seven weeks. Frankia-inoculated plants had increased biomass regardless of salt exposure, even though salt exposure reduced nitrogen fixation and reduced the efficiency of nitrogen-fixing nodules. The nitrogen-fixing symbiosis also decreased leaf stress and increased root phosphatase levels. This suggests that N-fixing plants not only have increased nitrogen nutrition but also have increased access to soil phosphorus. Mycorrhizae did not affect plant growth but did reduce nodule numbers and nodule efficiency. These results suggest that the nitrogen-fixing trait is more critical than mycorrhizae. While salt stress inhibits nitrogen-fixing symbiosis, plants still benefit from nitrogen fixation when exposed to salt. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Woody Plants)
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17 pages, 3629 KiB  
Article
Differential Expression of Arabinogalactan in Response to Inclination in Stem of Pinus radiata Seedlings
by Tamara Méndez, Yazmina Stappung, María A. Moya-León and Raúl Herrera
Plants 2022, 11(9), 1190; https://doi.org/10.3390/plants11091190 - 28 Apr 2022
Cited by 2 | Viewed by 1631
Abstract
Arabinogalactan proteins (AGPs) are members of a family of proteins that play important roles in cell wall dynamics. AGPs from inclined pines were determined using JIM7, LM2, and LM6 antibodies, showing a higher concentration in one side of the stem. The accumulation of [...] Read more.
Arabinogalactan proteins (AGPs) are members of a family of proteins that play important roles in cell wall dynamics. AGPs from inclined pines were determined using JIM7, LM2, and LM6 antibodies, showing a higher concentration in one side of the stem. The accumulation of AGPs in xylem and cell wall tissues is enhanced in response to loss of tree stem verticality. The differential gene expression of AGPs indicates that these proteins could be involved in the early response to inclination and also trigger signals such as lignin accumulation, as well as thicken cell wall and lamella media to restore stem vertical growth. A subfamily member of AGPs, which is Fasciclin-like has been described in angiosperm species as inducing tension wood and in some gymnosperms. A search for gene sequences of this subfamily was performed on an RNA-seq library, where 12 sequences were identified containing one or two fasciclin I domains (FAS), named PrFLA1 to PrFLA12. Four of these sequences were phylogenetically classified in group A, where PrFLA1 and PrFLA4 are differentially expressed in tilted pine trees. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Woody Plants)
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14 pages, 1205 KiB  
Article
Inoculation with Ericoid Mycorrhizal Associations Alleviates Drought Stress in Lowland and Upland Velvetleaf Blueberry (Vaccinium myrtilloides) Seedlings
by Deyu Mu, Ning Du and Janusz J. Zwiazek
Plants 2021, 10(12), 2786; https://doi.org/10.3390/plants10122786 - 16 Dec 2021
Cited by 9 | Viewed by 3140
Abstract
Although velvetleaf blueberry (Vaccinium myrtilloides) is usually associated with sandy (upland) areas of the North American boreal forest, lowland populations can be also found in bogs, suggesting possible adaptations to different site conditions. In this study, we examined the role of [...] Read more.
Although velvetleaf blueberry (Vaccinium myrtilloides) is usually associated with sandy (upland) areas of the North American boreal forest, lowland populations can be also found in bogs, suggesting possible adaptations to different site conditions. In this study, we examined the role of ericoid mycorrhizal (ERM) fungi in conferring drought resistance to the upland and lowland velvetleaf blueberry seedlings. The seedlings were inoculated with four ERM fungi (Pezicula ericae, Pezoloma ericae, Meliniomyces variabilis, and Oidiodendron maius) isolated from the roots of ericaceous plants and grown under controlled environmental conditions in sterilized soil. The inoculated and non-inoculated (inoculation control) plants were subsequently subjected to three cycles of drought stress by withdrawing watering. Lowland plants appeared to benefit relatively more from mycorrhizal colonization, compared with the upland plants, in terms of plant growth and drought survival. After three weeks of treatments, the dry weights of non-inoculated well-watered upland plants were higher compared to the non-inoculated lowland plants. However, these differences were offset by the inoculation of plants with ERM fungi, some of which also significantly improved drought resistance characteristics of the upland and lowland plants. There were no major differences in the effects of different ERM fungal species on drought responses of upland and lowland plants. Of the examined ericoid mycorrhizal fungi, inoculation with Pezicula ericae was the most effective in conferring drought resistance characteristics to both upland and lowland seedlings and helped maintain higher shoot water potentials, net photosynthetic, and transpiration rates in plants subjected to drought stress. Full article
(This article belongs to the Special Issue Abiotic Stress Responses in Woody Plants)
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