Sap flow evidence of chilling injury and recovery in mangroves following a spring cold spell

Gu, Xiaoxiong; Chen, Yang; Zhao, Hewei; Hu, Naxu; Krauss, Ken W.; Deng, Congrui; Chen, Luzhen

doi:10.1007/s00468-021-02089-9

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…Global warming may require migration of plant species towards higher latitudes (Saxe et al ., 2001; Stuart et al ., 2007; Quisthoudt et al ., 2012; Otis et al ., 2018). Mangrove tree species that grow in tropical and subtropical intertidal zones are poorly adapted to chilling (Gu et al ., 2021). In subtropical regions, mangroves experience seasonal chilling as well as occasional extreme cold waves, and only chilling‐tolerant species and genotypes can migrate poleward in response to global warming (Salem & Mercer, 2012; Zheng et al ., 2016; Saenger et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Correlations between allocation to foliar phosphorus fractions and maintenance of photosynthetic integrity in six mangrove populations as affected by chilling

Sunoj

Short

et al. 2021

New Phytologist

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Chilling restrains the distribution of mangroves. We tested whether foliar phosphorus (P) fractions and gene expression are associated with cold tolerance in mangrove species.We exposed seedlings of six mangrove populations from different latitudes to favorable, chilling and recovery treatments, and measured their foliar P concentrations and fractions, photochemistry, nighttime respiration, and gene expression.A Kandelia obovata (KO; 26.45°N) population completely and a Bruguiera gymnorhiza (Guangxi) (BGG; 21.50°N) population partially (30%) survived chilling. Avicennia marina (24.29°N), and other B. gymnorhiza (26.66°N, 24.40°N, and 19.62°N) populations died after chilling. Photosystems of KO and photosystem I of BGG were least injured. During chilling, leaf P fractions, except nucleic acid P in three populations, declined and photoinhibition and nighttime respiration increased in all populations, with the greatest impact in B. gymnorhiza. Leaf nucleic acid P was positively correlated with photochemical efficiency during recovery and nighttime respiration across populations for each treatment.Relatively high concentrations of nucleic acid P and metabolite P were associated with stronger chilling tolerance in KO. Bruguiera gymnorhiza exhibited relatively low concentrations of organic P in favorable and chilling conditions, but its partially survived population showed stronger compensation in nucleic acid P and Pi concentrations and gene expression during recovery.

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Section: Introductionmentioning

confidence: 99%

Correlations between allocation to foliar phosphorus fractions and maintenance of photosynthetic integrity in six mangrove populations as affected by chilling

Sunoj

Short

et al. 2021

New Phytologist

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“…Particularly, in recent years, LTS, brought on by an abnormally altered global climate, caused massive losses to the agricultural industry [1]. Plant cold stress is generally divided into two categories: freezing and chilling injuries [2]. Freezing injury is caused by the prolonged plant exposure to low temperatures (i.e., below 0 • C), which may freeze the internal tissues, thus resulting in irreversible damage and death of plants [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Outcomes of Low-Temperature Stress on Biological Alterations within Pothos (Epipremnum aureum) Leaves

Cai

Tang

2022

Life

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Pothos (Epipremnum aureum) is a commonly used indoor ornamental foliage, particularly in the middle and lower regions of the Yangtze River in China. It typically grows in the tropical area, and it is yet unclear whether prolonged winter temperatures cause plant damage and impact its development. In this study, the E. aureum chilling injury response was explored by maintaining it at 1 °C. Based on the acquired results, low-temperature stress (LTS) induced wilting and yellowing of leaves and diminished chloroplast pigment concentrations, particularly the chlorophyll b content. LTS also induced overproduction of reactive oxygen species (ROS) within E. aureum and enhanced the relative electrical conductivity and superoxide dismutase activity. In addition, with prolonged LTS, the anatomical structure of E. aureum was severely damaged, resulting in a marked reduction in the photochemical activity of the photosystem Ⅱ reaction center and suppressed photosynthesis. Moreover, results of the transcriptomic analysis revealed that LTS induced the expression of genes involved in the α-linolenic acid metabolic pathway, plant hormone network, host plant–pathogen association, and MAPK axis, suggesting that LTS would activate its resistant response to cold stress. These results unraveled the physiological and transcriptomical response of E. aureum to chilling injury, which would lay a theoretical foundation for the cultivation of low-temperature-tolerant varieties of E. aureum.

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Microcosm study on cold adaptation and recovery of an exotic mangrove plant, Laguncularia racemosa in China

Lang

Tang

Tam³

et al. 2022

Marine Environmental Research

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Sap flow evidence of chilling injury and recovery in mangroves following a spring cold spell

Cited by 7 publications

References 42 publications

Correlations between allocation to foliar phosphorus fractions and maintenance of photosynthetic integrity in six mangrove populations as affected by chilling

Correlations between allocation to foliar phosphorus fractions and maintenance of photosynthetic integrity in six mangrove populations as affected by chilling

Outcomes of Low-Temperature Stress on Biological Alterations within Pothos (Epipremnum aureum) Leaves

Microcosm study on cold adaptation and recovery of an exotic mangrove plant, Laguncularia racemosa in China

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