Magnolia grandiflora L. shows better responses to drought than Magnolia × soulangeana in urban environment

Vastag, Erna; Orlović, Saša; Konôpková, Alena; Kurjak, Daniel; Cocozza, Claudia; Pšidová, Eva; Lapin, K.; Kesić, Lazar; Stojnić, Srđan

doi:10.3832/ifor3596-013

Cited by 11 publications

(5 citation statements)

References 52 publications

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“…Supporting the RWC evidence, the lower chlorophyll content observed in leaves of drought-treated plants indicates an impact on chlorophyll abundance. Impacts on chlorophyll pigment, especially photosystem II, under drought conditions has been reported in various tree species ( Batra et al., 2014 ; Li et al., 2020 ; Vastag et al., 2020 ; Javed et al., 2021 ). For instance, teak plants under severe drought exposure (20 days of water withholding) show a reduction in chlorophyll content and leaf RWC by 9.57% ( Galeano et al., 2019 ).…”

Section: Discussionmentioning

confidence: 99%

Short-term severe drought influences root volatile biosynthesis in eastern white pine (Pinus strobus L)

et al. 2022

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Climate change-related drought stress is expected to shift carbon partitioning toward volatile organic compound (VOC) biosynthesis. The effect of drought stress on VOC synthesis remains unknown in several tree species. Therefore, we exposed eastern white pine (Pinus strobus) plants to severe drought for 32 days and performed physiological analysis (chlorophyll content, leaf water content, and root/shoot index), biochemical analysis (non-structural carbohydrates, proline, lipid peroxidation, and antioxidant assay), and total root VOC analysis. Drought stress decreased the relative water and soil moisture contents. Root proline accumulation and antioxidant activity increased significantly, whereas leaf chlorophyll synthesis and fresh weight decreased significantly in drought-treated plants. A non-significant increase in sugar accumulation (leaves and roots), proline accumulation (leaves), antioxidant activity (leaves), and lipid peroxidation (leaves and roots) was observed in drought-treated plants. Drought stress caused a non-significant decline in root/shoot ratio and starch accumulation (leaves and roots) and caused a significant increase in root abscisic acid content. Drought-treated plants showed an increase in overall monoterpene synthesis (16%) and decline in total sesquiterpene synthesis (3%). Our findings provide an overall assessment of the different responses of VOC synthesis to severe water deficit that may help unravel the molecular mechanisms underlying drought tolerance in P. strobus.

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Section: Discussionmentioning

confidence: 99%

Short-term severe drought influences root volatile biosynthesis in eastern white pine (Pinus strobus L)

et al. 2022

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“…The maximum carboxylase activity of Rubisco ( V cmax ) and the capacity for photosynthetic electron transport ( J max ) can constrain the WUE from the carbon assimilation side. Maintenance of functional electron transport under drought stress led to higher WUE i in Magnolia grandiflora ( Vastag et al 2020 ). Reduction of V cmax under ozone treatment caused decoupling of photosynthesis and stomatal conductance, which led to lowered WUE i in rice ( Masutomi et al 2019 ) and poplar clones ( Xu et al 2022 ).…”

Section: Carbon Side Of Wuementioning

confidence: 99%

Leaf physiological and morphological constraints of water-use efficiency in C3 plants

et al. 2023

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The increasing evaporative demand due to climate change will significantly affect the balance of carbon assimilation and water losses of plants worldwide. The development of crop varieties with improved water use efficiency (WUE) will be critical for adapting agricultural strategies under predicted future climate. This review aims to summarize the most important leaf morpho-physiological constraints of WUE in C3 plants and identify gaps in knowledge. From the carbon gain side of the WUE, the discussed parameters are mesophyll conductance, carboxylation efficiency and respiratory losses. The traits and parameters affecting the waterside of WUE balance discussed in this review are stomatal size and density, stomatal control and residual water losses (cuticular and bark conductance), nocturnal conductance and leaf hydraulic conductance. In addition, we discussed the impact of leaf anatomy and crown architecture on both the carbon gain and water loss components of WUE. There are multiple possible targets for future development in understanding sources of WUE variability in plants. We identified residual water losses and respiratory carbon losses as the greatest knowledge gaps of whole plant WUE assessments. Moreover, the impact of trichomes, leaf hydraulic conductance and canopy structure on plants’ WUE is still not well understood. The development of a multi-trait approach is urgently needed for a better understanding of WUE dynamics and optimization.

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“…exhibiting lower sensitivity to drought (Percival et al 2006). One way to do a selection is by comparing the leaf gas exchange parameters as an indicator of drought tolerance, which in the Magnolia genus has pointed towards Magnolia grandiflora L. as a better alternative to Magnolia × soulangeana (Vastag et al 2020). Liquidambar styraciflua is another species with noted ability to persevere seasonal drought and increased soil salinity (Baraldi et al 2019b), as well as Maclura pomifera Schneid., which could more easily recover from the common drought cycles (Khaleghi et al 2019).…”

Section: Urban Seed Sources: Impacts Of Climatic Changes Urbanization...mentioning

confidence: 99%

Collection of Experiences: 25 Years’ Work on Seed Propagation of Allochthonous Woody Plants in Skopje and Their Possible Role in the Urban Landscape

Dimitrova

Stipanović

Kolevska

2023

SEEFOR

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In the past decades, numerous landscaping efforts in the urban and suburban areas of Skopje have provided a diversified presence of allochthonous woody species. From the registered 206 allochthonous woody plants, in the past 25 years, 65 species (19 Gymnospermae and 46 Angiospermae) have been the focus of various research and monitoring efforts, including seed propagation and analysis of the generative propagation potential. Considering the variability in the experimental approach, we have performed an extensive literature revision and combined the results from the two in a summary of species that could be of potential interest in the green infrastructure in Skopje, due to their benefits (ornamental use and air pollution remediation) or risks (invasive and allergenic potential). We have also underlined the potential of using urban species as seed banks and species conservation, along with various services they could provide. To the best of our knowledge, this is the first attempt that summarizes the allochthonous woody species in Skopje along with the experience regarding their generative potential and possible use in urban forestry. As such, it serves as a base for future experimental research that could provide more information about the seed quality and the species’ benefits in Skopje and the surrounding areas.

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Magnolia grandiflora L. shows better responses to drought than Magnolia × soulangeana in urban environment

Cited by 11 publications

References 52 publications

Short-term severe drought influences root volatile biosynthesis in eastern white pine (Pinus strobus L)

Short-term severe drought influences root volatile biosynthesis in eastern white pine (Pinus strobus L)

Leaf physiological and morphological constraints of water-use efficiency in C3 plants

Collection of Experiences: 25 Years’ Work on Seed Propagation of Allochthonous Woody Plants in Skopje and Their Possible Role in the Urban Landscape

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