Anatomical and karyotypic comparison of induced tetraploid of Oryza sativa var Latisail with the allotetraploid halophytic wild rice Oryza coarctata

Maisha, Masnun H.; Islam, Tasmia; Eva, Ahasana Habiba; Alam, Md Nafis Ul; Habiba, Umme; Azim, Tomalika; Begum, Kazi Nahida; Seraj, Zeba I.; Sarkar, Rakha Hari

doi:10.1007/s10722-022-01511-6

Cited by 2 publications

(5 citation statements)

References 42 publications

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“…This was supported by our observation of higher levels of ferulate (by 19×), oleic acid (3.6×), and 16‐hydroxy hexadecanoic acid (1.81×) in O. coarctata , accounting for the anatomical differences that set it apart as a halophyte. These observations are consistent with the leaf's phenotype of O. coarctata which are waxy unlike those of cultivated rice (Maisha et al., 2022 ).…”

Section: Discussionsupporting

confidence: 87%

“…Therefore, its gene pool can be used to improve the tolerance and yield of domesticated rice at higher than the current levels of salinity in which it can grow (Tasnim et al, 2023;Tong et al, 2023). The high salt tolerance of this variety is possibly linked to many naturally adapted phenotypic changes, such as unicellular trichomes (Flowers et al, 1990), salt glands in both upper and lower leaf surfaces, and rhizoid-like thin rootlets (Maisha et al, 2022;Sengupta & Majumder, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, its gene pool can be used to improve the tolerance and yield of domesticated rice at higher than the current levels of salinity in which it can grow (Tasnim et al., 2023 ; Tong et al., 2023 ). The high salt tolerance of this variety is possibly linked to many naturally adapted phenotypic changes, such as unicellular trichomes (Flowers et al., 1990 ), salt glands in both upper and lower leaf surfaces, and rhizoid‐like thin rootlets (Maisha et al., 2022 ; Sengupta & Majumder, 2010 ). At the gene level, the MIPS coding gene ( Pc INO1 ) of Oryza coarctata is unique among all the INO1 homologs known today (Majee et al., 2004 ), and functional introgression of the PcINO1 has conferred salt tolerance to a wide range of organisms, including crop plants (Das‐Chatterjee et al., 2006 ).…”

Section: Discussionmentioning

confidence: 99%

“…This aligns with the previous finding that O. coarctata contains more lignin in its composition compared to O. sativa. Maisha et al (2022) showed that O. coarctata roots are protected by double-layered lignified hexagonal epidermal cells of 67 μm thickness, whereas O. sativa roots contain non-lignified doublelayered elongated cells with a thickness of around 53 μm (Maisha et al, 2022). It was shown that lignin deposition helps plants maintain cell turgor and fight drought stress by making cells more thickened and less permeable to water (Dong & Lin, 2021).…”

Section: O Coarctata Shows a Distinct Metabolite Profile Under Contro...mentioning

confidence: 99%

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Comparative metabolite profiling of salt sensitive Oryza sativa and the halophytic wild rice Oryza coarctata under salt stress

Tamanna,

Mojumder,

Azim

et al. 2024

Plant Enviro Interactions

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To better understand the salt tolerance of the wild rice, Oryza coarctata, root tissue‐specific untargeted comparative metabolomic profiling was performed against the salt‐sensitive Oryza sativa. Under control, O. coarctata exhibited abundant levels of most metabolites, while salt caused their downregulation in contrast to metabolites in O. sativa. Under control conditions, itaconate, vanillic acid, threonic acid, eicosanoids, and a group of xanthin compounds were comparatively abundant in O. coarctata. Similarly, eight amino acids showed constitutive abundance in O. coarctata. In contrast, under control, glycerolipid abundances were lower in O. coarctata and salt stress further reduced their abundance. Most phospholipids also showed a distribution similar to the glycerolipids. Fatty acyls were however significantly induced in O. coarctata but organic acids were prominently induced in O. sativa. Changes in metabolite levels suggest that there was upregulation of the arachidonic acid metabolism in O. coarctata. In addition, the phenylpropanoid biosynthesis as well as cutin, suberin, and wax biosynthesis were also more enriched in O. coarctata, likely contributing to its anatomical traits responsible for salt tolerance. The comparative variation in the number of metabolites like gelsemine, allantoin, benzyl alcohol, specific phospholipids, and glycerolipids may play a role in maintaining the superior growth of O. coarctata in salt. Collectively, our results offer a comprehensive analysis of the metabolite profile in the roots of salt‐tolerant O. coarctata and salt‐sensitive O. sativa, which confirm potential targets for metabolic engineering to improve salt tolerance and resilience in commercial rice genotypes.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: O Coarctata Shows a Distinct Metabolite Profile Under Contro...mentioning

confidence: 99%

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Comparative metabolite profiling of salt sensitive Oryza sativa and the halophytic wild rice Oryza coarctata under salt stress

Tamanna,

Mojumder,

Azim

et al. 2024

Plant Enviro Interactions

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“…Oryza coarctata, a halophytic wild rice, can be found all along Bangladesh's coastline (Maisha et al 2022). It exhibits strong tolerance to high salinity (20-40 dS/m) while submerged entirely for extended periods of time (Garg et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Plant growth promoting endophytic fungi of the wild halophytic rice Oryza coarctata

Airin

Arafat

Begum

et al. 2023

Preprint

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Background Plant growth-promoting endophytic fungi (PGPEF) associated with halophytes have the potential to boost plant growth and salinity tolerance in crops enabling cultivation in the coastal lands. Methods Endophytic fungi from the wild halophytic rice Oryza coarctata were isolated, characterized, identified and studied for their effects on plant growth and yield both with and with without salt stress. Key results: In this study, three different fungal endophytes were isolated from the halophytic wild rice Oryza coarctata. Two isolates were identified as Talaromyces adpressus (OPCRE2) and Talaromyces argentinensis (OPCRh1) by ITS region sequencing, the remaining isolate NPCRE2 was identified as a novel strain named Aspergillus welwitschiae Ocstreb1 (AwOcstreb1) by whole genome sequencing. These endophytes showed various plant growth-promoting (PGP) abilities in vitro (e.g. IAA, ACC-deaminase and siderophore production, phosphate and zinc solubilization as well as nitrogen fixation), where AwOcstreb1 was significantly more efficient compared to the other two isolates at high salinity (900 mm). Independent treatment of these fungi in commercial rice (Oryza sativa) showed significant elevation in plant growth, especially in the case of the AwOcstreb1 inoculants, which had enhanced metabolite and chlorophyll content at the seedling stage in both no-salt control and 100 mm salt-stressed plants. At the same time, a significantly low level of H2O2, electrolyte leakage and Na+/K+ ratio was demonstrated under the saline condition. Higher expression (1.6 folds) of the SOS1 (Salt Overly Sensitive 1) gene was also observed in AwOcstreb1-treated plants under salinity stress. This strain also improved percent fertility, tillering, panicle number and filled grain number in both no-salt control and 45 mm salt-stressed inoculated plants at the reproductive stage. Consequently, their yield increased by 125.16% and 203.96% (p < 0.05) in colonized plants in normal and saline conditions, respectively, compared to uninoculated controls. Conclusions We propose that AwOcstreb1 is a potential candidate for an eco-friendly biofertilizer formula to improve cultivation and yield of rice or any crop in high saline coastal regions of Bangladesh.

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Anatomical and karyotypic comparison of induced tetraploid of Oryza sativa var Latisail with the allotetraploid halophytic wild rice Oryza coarctata

Cited by 2 publications

References 42 publications

Comparative metabolite profiling of salt sensitive Oryza sativa and the halophytic wild rice Oryza coarctata under salt stress

Comparative metabolite profiling of salt sensitive Oryza sativa and the halophytic wild rice Oryza coarctata under salt stress

Plant growth promoting endophytic fungi of the wild halophytic rice Oryza coarctata

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