Leaf physiological and anatomical characters contribute to drought tolerance of Nusa Tenggara Timur local rice cultivars

Salsinha, Yustina Carolina Febrianti; Maryani,; Indradewa, Didik; Purwestri, Yekti Asih; Rachmawati, Diah

doi:10.1007/s12892-020-00082-1

Cited by 20 publications

(22 citation statements)

References 21 publications

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“…In this condition, plant adjustment occurs through the decrease in growth activity leads to the formation of smaller cells. Also, according to previous studies (Salsinha et al 2021a(Salsinha et al , 2021b, changes in root diameter size are related to the ability of plants to increase the pressure that supports higher root penetration through the planting medium in response to a decrease in soil moisture content.…”

Section: Discussionmentioning

confidence: 88%

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Proline-related gene expressions contribute to physiological changes of East Nusa Tenggara (Indonesia) local rice cultivars during drought stress

et al. 2022

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Abstract. Salsinha YCF, Nurbaiti S, Sebastian A, Indradewa D, Purwestri YA, Rachmawari D. 2022. Proline-related gene expressions contribute to physiological changes of East Nusa Tenggara (Indonesia) local rice cultivars during drought stress. Biodiversitas 23: 3573-3583. An osmoregulation response is one of the mechanisms of adaptation to drought stress. Concerning the synthesis and catabolism of proline as an osmoprotectant, this research aims to study the involvement of proline in regulating physiological change in local rice cultivars from Nusa Tenggara Timur (NTT), Indonesia. Five rice cultivars consisting of Ciherang (drought susceptible) and Situ Bagendit (drought tolerant) and three local rice cultivars, namely Gogo Jak (GJ), Kisol Manggarai (KM), and Boawae Seratus Malam (BSM) were used. Drought treatments were carried out using the fraction of transpirable soil water (FTSW) with control (FTSW 1) and severe drought (FTSW 0.2). The upregulation of OsP5CS and OsP5CR as proline synthesis genes in GJ leaves led to higher proline levels. At the KM cultivar, there was an upregulation of OsPRODH related to proline catabolism. Furthermore, OsNHX1, responsible for proline transport, was higher in the GJ cultivar. The presence of proline also correlated with physiological adaptations. Proline accumulation due to the activation of proline-related gene expressions caused less physiological changes and antioxidant activity reduction and has led to maximum water absorption during a severe drought in the BSM cultivar. The analysis showed non-significant decreased levels of chlorophyll-a and increased levels of chlorophyll-b, carotenoids, and anthocyanins of drought-tolerant cultivars lead to higher leaf number, plant height, and tiller number under drought. Meanwhile, varied activity levels of superoxide dismutase (SOD), ascorbate peroxidase (APX), and catalase (CAT) were observed in line with the slight increase in H2O2 and malonaldehyde (MDA) levels during severe drought.

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Section: Discussionmentioning

confidence: 88%

“…According to the previous study (Salsinha et al 2021b) plants experienced a reduction in root diameter and root density during drought. This process is due to the changes in the metabolic process when cells are exposed to drought stress.…”

Section: Discussionmentioning

confidence: 90%

Proline-related gene expressions contribute to physiological changes of East Nusa Tenggara (Indonesia) local rice cultivars during drought stress

et al. 2022

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“…Morpho-anatomical characters supporting the resilience of a plant under certain environmental conditions cannot be interpreted individually but thoroughly along with the physiological f actors to determine the ability of plants to survive in the drought environment. (Salsinha et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Mesomorphy and vulnerability indices of Solanum melongena and Corchorus olitorius in Nsukka metropolis

Eli¹,

Ajuzieogu²

2022

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Global warming is no longer just a prediction. It is happening. Variability in climate is deeply rooted within the West African society. Understanding the response of plants to increased drought would be desirable in the light of global and regional changes, not only to forecast population dynamics in natural ecosystem, but also to adjust management practices in agriculture. This study evaluated the vulnerability and mesomorphic indices of two woody farm shrubs (Solanum melongena and Corchorus olitorius) from three locations (Odoru, Ogige, Odenigwe) using their anatomical structures. The sectioning of the plant stems was carried out in the anatomy laboratory of the department of Plant science and Biotechnology, University of Nigeria Nsukka. The result was significantly different (P <0.05) in the vessel length of the two plants with Corchorus olitorius having longer vessels (0.302 ± 0.012mm). Similarly, the vessel length varied significantly (P < 0.05) across the different locations. The vulnerability and mesomorphy indices observed across the plants from the different locations were <1 indicating the xeromorphic nature of the plants. Therefore, both species can withstand drought conditions, but at different degrees.

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“…Epidermal and stomatal observations were carried out on the abaxial part, based on the presence of stomata, using both conventional anatomical preparation procedures (LM observation) (Zhu et al 2018;Salsinha et al 2021) and scanning electron microscope (SEM) procedures (Akçi̇n et al 2013). For LM observation, the abaxial surface of the leaf was coated with a thin layer of nail polish or glycerin.…”

Section: Stomatal and Epidermal Measurementmentioning

confidence: 99%

Comparative anatomical study of leaves for twelve Indonesian woody plant species

Damaiyani¹,

FIQA²,

Rindyastuti³

et al. 2022

Biodiversitas

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Abstract. Damaiyani J, Fiqa AP, Rindyastuti R, Lestari DA, Rahadiantoro A, Yulistyarini T. 2022. Comparative anatomical study of leaves for twelve Indonesian woody plant species. Biodiversitas 23: 3744-3754. Foliar epidermal and stomatal features are widely used as plant microscopic traits either from taxonomic or ecological standpoints. The studies on woody plants in the Malesian region which serve as the essential component of tropical ecosystems are still limited. Here we conduct a comparative study on stomatal and epidermal features of twelve important woody plant species from Indonesia using a descriptive method based on the Light Microscope and Scanning Electron Microscope micrographs. The shape, size and stomatal type were revealed in all species studied. Moreover, quantitative features were measured including epidermal cell length and width, solidity (S), aspect ratio (AR), and stomatal index (SI). The study results showed a variation in foliar epidermal and stomatal traits across the species studied. Due to the presence of trichomes and waxes on the abaxial side, not all species can be measured for their stomatal index and epidermal cells. Syzygium polyanthum has the highest stomatal index and cells with complex interlocking shapes, which provide an effective strategy for reducing mechanical stress on epidermal cell walls, making this native species predicted to adapt well when it was planted in habitats with similar environmental conditions.

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Leaf physiological and anatomical characters contribute to drought tolerance of Nusa Tenggara Timur local rice cultivars

Cited by 20 publications

References 21 publications

Proline-related gene expressions contribute to physiological changes of East Nusa Tenggara (Indonesia) local rice cultivars during drought stress

Proline-related gene expressions contribute to physiological changes of East Nusa Tenggara (Indonesia) local rice cultivars during drought stress

Mesomorphy and vulnerability indices of Solanum melongena and Corchorus olitorius in Nsukka metropolis

Comparative anatomical study of leaves for twelve Indonesian woody plant species

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