Variability in drought response among the plus tree accessions of Tectona grandis (Linn f.) from the provenances of Kerala, South India

Hassan, Mohammed Ali Eltoum; Santhoshkumar, A.; Hrideek, T. K.; Jijeesh, C. M.; Joseph, Jiji

doi:10.1007/s11738-021-03215-3

Cited by 2 publications

(9 citation statements)

References 32 publications

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“…The present study indicates that all the teak sources exhibited reduced peroxidase activity (0.048 ± 0.00 to 0.030 ± 0.00 min −1 mg −1 ) which might be due to reduced stress conditions. Similar trends have been noticed in teak 12 , 13 and Populus cathayana 41 .…”

Section: Discussionsupporting

confidence: 84%

“…The amount of proline present in the teak clones was between the ranges of 3.76 ± 0.07 to 1.17 ± 0.05 µg g −1 which indicated that the plants can withstand abiotic stress conditions. The results are in corroboration with Teak 12 , 13 , 30 , Rubber 35 and Populus 40 .…”

Section: Discussionsupporting

confidence: 78%

“…Carotenoids ranged from 1.070 ± 0.05 to 0.516 ± 0.02 mg g −1 . Similar trends in chlorophylls and carotenoids were noticed in Teak 12 , 13 , 30 , 32 , 33 , Pungam 34 and Rubber 35 . Many studies 36 – 38 demonstrate that mild stress does not affect chlorophyll concentration.…”

Section: Discussionsupporting

confidence: 78%

“…The increase in peroxidase activity implies that the plant uses protective mechanisms (photo-protection) to cope with moisture stress. Increased peroxidase activity could suggest that the cell wall's mechanical characteristics have deteriorated 12 . The present study indicates that all the teak sources exhibited reduced peroxidase activity (0.048 ± 0.00 to 0.030 ± 0.00 min −1 mg −1 ) which might be due to reduced stress conditions.…”

Section: Discussionmentioning

confidence: 99%

“…The ability of a plant to cope with stress and recuperate determines its ability to modify growth and development under harsh situations. Growing periods with water scarcity can lead to decreased rates of height and diameter growth, reduced resistance to biotic and abiotic factors and changes in the timing and rate of physiological processes 12 . Teak plantations, like many other tropical plant species, are subjected to sustained periods of drought stress.…”

Section: Introductionmentioning

confidence: 99%

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Variation in biochemical, physiological and ecophysiological traits among the teak (Tectona grandis Linn. f) seed sources of India

Mittre

Parthiban

Raveendran

et al. 2022

Sci Rep

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Teak being an iconic timber species the studies on its physiological and biochemical traits are very limited in India and worldwide. As a result, the current study aimed to assess biochemical parameters such as chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, chlorophyll ab ratio, proline content, and peroxidase activity, along with physiological parameters such as Chlorophyll stability index, relative water content, and leaf area, as well as ecophysiological traits such as net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 concentration (Ci), transpiration rate (Tr), Leaf temperature, intrinsic water-use efficiency (iWUE), instantaneous water use efficiency and intrinsic carboxylation efficiency of thirty teak seed sources collected from different states of India. FCRITK 19, FCRITK 21, FCRITK 25, FCRITK 29, and FCRITK 05 were reported to have a greater photosynthetic rate (> 17 µmol m−2 s−1) coupled with a relative water content of more than 50% and a chlorophyll stability index of more than 60%, which could be used in a future genetic improvement programme. Correlation analysis indicated that water use efficiency was found to be strongly but negatively correlated with transpiration rate (−0.601) and stomatal conductance (−0.910). The proline content had a substantial positive correlation with the chlorophyll stability index (0.890), signifying that they are associated with abiotic stress conditions. Cluster analysis was attempted to discriminate the sources based on biochemical, physiological and ecophysiological traits. Eleven sources (FCRITK 25, FCRITK 27, FCRITK 29, FCRITK 14, FCRITK 30, FCRITK 16, FCRITK 05, FCRITK 13, FCRITK 02, FCRITK 17 and FCRITK 15) exhibited superior performance compared to rest of the sources.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionsupporting

confidence: 78%

Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Variation in biochemical, physiological and ecophysiological traits among the teak (Tectona grandis Linn. f) seed sources of India

Mittre

Parthiban

Raveendran

et al. 2022

Sci Rep

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The role of leaf superoxide dismutase and proline on intra-specific photosynthesis recovery of Schima superba following drought

Duan,

Shao,

Zhao

et al. 2024

Sci Rep

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Understanding the physiological and biochemical responses of tree seedlings under extreme drought stress, along with recovery during rewatering, and potential intra-species differences, will allow us to more accurately predict forest responses under future climate change. Here, we selected seedlings from four provenances (AH (Anhui), JX (Jiangxi), HN (Hunan) and GX (Guangxi)) of Schima superba and carried out a simulated drought-rewatering experiment in a field-based rain-out shelter. Seedlings were progressively dried until they reached 50% and 88% loss of xylem hydraulic conductivity (PLC) (i.e. P50 and P88), respectively, before they were rehydrated and maintained at field capacity for 30 days. Leaf photosynthesis (Asat), water status, activity of superoxide dismutase (SOD), and proline (Pro) concentration were monitored and their associations were determined. Increasing drought significantly reduced Asat, relative water content (RWC) and SOD activity in all provenances, and Pro concentration was increased to improve water retention; all four provenances exhibited similar response patterns, associated with similar leaf ultrastructure at pre-drought. Upon rewatering, physiological and biochemical traits were restored to well-watered control values in P50-stressed seedlings. In P88-stressed seedlings, Pro was restored to control values, while SOD was not fully recovered. The recovery pattern differed partially among provenances. There was a progression of recovery following watering, with RWC firstly recovered, followed by SOD and Pro, and then Asat, but with significant associations among these traits. Collectively, the intra-specific differences of S. superba seedlings in recovery of physiology and biochemistry following rewatering highlight the need to consider variations within a given tree species coping with future more frequent drought stress.

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Variability in drought response among the plus tree accessions of Tectona grandis (Linn f.) from the provenances of Kerala, South India

Cited by 2 publications

References 32 publications

Variation in biochemical, physiological and ecophysiological traits among the teak (Tectona grandis Linn. f) seed sources of India

Variation in biochemical, physiological and ecophysiological traits among the teak (Tectona grandis Linn. f) seed sources of India

The role of leaf superoxide dismutase and proline on intra-specific photosynthesis recovery of Schima superba following drought

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