Asian Journal of Research in Botany <p style="text-align: justify;"><strong>Asian Journal of Research in Botany</strong>&nbsp;aims to publish high-quality papers (<a href="/index.php/AJRIB/general-guideline-for-authors">Click here for Types of paper</a>) in all aspects of Botany. The journal also encourages the submission of useful reports of negative results. This is a quality controlled,&nbsp;OPEN&nbsp;peer-reviewed, open access INTERNATIONAL journal.&nbsp;</p> Asian Journal of Research in Botany en-US Asian Journal of Research in Botany Chronic Toxicity Study Aqueous Stem Bark of Khaya senegalensis Extract on the Histology of the Liver and Its Biochemical Parameters in Wistar Rats <p><strong>Introduction: </strong><em>Khaya senegalensis </em>is a genus of seven species of trees in the mahogany family Meliaceae, native to tropical Africa and Madagascar. Mahogany in English, Aganwo in Yoruba,&nbsp; Madachi in&nbsp; Hausa and&nbsp; Ono in&nbsp; Igbo. All species become big trees 30–35 m tall, rarely 45 m, with a trunk over 1 m trunk diameter, often buttressed at the base. The leaves are pinnate, with 4-6 pairs of leaflets, the terminal leaflet absent; each leaflet is 10–15 cm long abruptly rounded toward the apex but often with an acuminate tip.</p> <p><strong>Aim:</strong> The study aimed to determine the chronic toxicity on the histological effect of chronic oral administration of the aqueous stem bark of <em>Khaya senegalensis</em> extract on the liver and its biochemical parameters in Wistar rats.</p> <p><strong>Methods:</strong> This project dissertation work is experimental research. A total of 20 Wistar rats were randomly divided into 5 groups each of which contains 4 rats. Group 1 received distilled water while group 2, 3, 4, and 5 received 500 mg/kg bw, 1000 mg/kg bw 2000 mg/kg bw and 4000 mg/kg bw of the aqueous extract respectively for 60 days after which they were sacrificed.</p> <p><strong>Results:</strong> There was a significant increase in Aspartate transaminase and Alanine amino-transferases in group 5 compared with group 1 (control), while no significant increase in the other groups,&nbsp; but Alkaline phosphatase there was a decrease in group 3, other groups not significant. The total protein there was an increase in groups 3, 4 and 5 but group 2 no significant increase. Similarly, albumin there was an increase in groups 2 and 4 while other groups not significant. The total bilirubin and direct bilirubin in all test groups were increased. The liver section has normal histology in group 1(control), after administration of distilled water. The test groups showed increase infiltration of polymorphs across all the groups, more marked in group 5 indicating inflammation of the liver.</p> U. Abubakar J. O. Adisa U. Mohammed R. I. Tsamiya M. O. Mohammed A. T. Muhammad I. Mohammed A. Umar S. D. Abubakar S. M. Sani Okorie . S. A. Fasogbon ##submission.copyrightStatement## 2020-03-17 2020-03-17 1 9 Effect of Potassium Chloride (KCl) on Biochemical and Morphological Parameters of Triticum aestivum L. <p>The present study investigates how Potassium chloride (KCl) affects and alters the biochemical and morphological characters of <em>Triticum aestivum</em> L variety (Ghanimat). The experiment was arranged in Randomized Complete Block Design (RCBD) under the natural light condition. Potassium chloride (KCl) applied as foliar spray at the dose of (20, 40, 60, 80, and 100 ppm) on wheat plant. Morphological parameters including shoot length, root length, fresh and dry weight, relative water contents, leaf area, leaf no, root no were analyzed along with biochemical contents including Chlorophyll a b, protein, proline, sugar, carotenoid, phenol and amino acid contents. Results showed that the maximum concentration of morphological parameters observed at different applied potassium chloride but maximum morphological parameters are high in (control 20, 40, and 60 ppm). Biochemical contents show that maximum concentration of Chlorophyll a b, protein, proline, sugar, carotenoid, phenol and amino acid contents observed in (control 100, and 40 ppm). The current study revealed that KCL deficiency as well as excess concentration affects plant growth and various morpho-physiological processes. The usage of optimum KCl we can improve the <em>T. aestivum</em> L quantitatively and qualitatively.</p> Danyal Rasheed J. N. Azorji Wisal . Sajjad Ali M. O. Nawchukwu C. U. Nwachukwu ##submission.copyrightStatement## 2020-03-18 2020-03-18 10 17 Growth and Yield of Traditional Aromatic Rice Cultivars in Boro Season <p>An experiment was conducted at agronomy field, Sher-e-Bangla Agricultural University (SAU), Sher-e-Bangla Nagar, Dhaka-1207 during the period from November 2017 to May 2018 to evaluate the growth, yield and grain quality of traditional aromatic rice cultivars in <em>Boro </em>season. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Eleven aromatic rice genotypes viz. T<sub>1 </sub>= Kataribhog-1, T<sub>2 </sub>= Kataribhog-2 (awned), T<sub>3 </sub>= BRRI dhan34, T<sub>4</sub> = Badshabhog, T<sub>5</sub> = BRRI dhan38, T<sub>6</sub> = Chinigura, T<sub>7</sub> = Madhumala, T<sub>8</sub> = BRRI dhan50, T<sub>9</sub> = Zirabhog, T<sub>10</sub> = Chiniatap-1 and T<sub>11</sub>= Chiniatap-2. Chinigura produced the tallest plant (151.23 cm), higher number of tillers hill<sup>-1 </sup>(25.66), and leaves hill<sup>-1</sup> (65.00). The maximum leaf area index (5.5) was obtained from Chinigura (T<sub>6</sub>) which was statistically differed from all other varieties. Days to 50% flowering (92.66 days) was more for Chinigura (T<sub>6</sub>) which was statistically similar with all varieties except BRRI dhan38 (T<sub>5</sub>) and Madhumala (T<sub>7</sub>). BRRI dhan34 (T<sub>3</sub>) produced the highest chlorophyll content in leaves which was statistically identical with BRRI dhan38 (T<sub>5</sub>), Chinigura (T<sub>6</sub>) and Chiniatap-2 (T<sub>11</sub>). Grain length and breadth ratio is the lowest (2.26: 1) in Kataribhog-1. Chinigura provided the highest grain yield (3.46 t ha<sup>-1</sup>) followed by Kataribhog-1 (3.32 t ha<sup>-1</sup>), Badshabhog (3.20 t ha<sup>-1</sup>), BRRI dhan38 (2.80 t ha<sup>-1</sup>) and BRRI dhan50 (2.65 t ha<sup>-1</sup>). Chinigura also provided the highest straw yield (8.11 t ha<sup>-1</sup>) and biological yield (11.10 t ha<sup>-1</sup>). So, Chinigura exhibited higher adaptability in <em>Boro</em> season compared to rest of the cultivars. Chinigura can be cultivated in <em>Boro</em> season compared to rest of the cultivars.</p> Shikha Akter Fariha Afia Bonni Md. Ehsanul Haq Nurjahan Shithi Nahida Sultana Muslima Jahan Runia Ayesha Siddika Mst. Badrun Nahar ##submission.copyrightStatement## 2020-03-18 2020-03-18 18 27 Mitochondrial Oxidative Phosphorylation Controls SA-Induced Thermogenesis in the Appendix of Sauromatum Guttatum <p><strong>Aim:</strong> To study thermogenesis induced by aspirin, salicylic acid and 2,6-dhdroxybenzoic acid in the appendix of the <em>Sauromatum</em> <em>guttatm</em> and <em>Arum italicum</em> inflorescences.</p> <p><strong>Study Design:</strong> Determination of tissue temperature in the presence of the three thermogenic inducers and mitochondrial inhibitors (antimycin, myxothiazol, salicylhydroxamic acid, 2,4-dinitrophenol, oligomycin and carboxyatractyloside).</p> <p><strong>Methods:</strong> Monitoring tissue temperature with thermocouples in the presence of inducers and different mitochondrial inhibitors over 48 h.</p> <p><strong>Results:</strong> Induced temperature rise was suppressed in the presence of different mitochondrial inhibitors. Inhibitors of complex III, Antimycin A (200 µM) and myxothiazol (200 µM), decreased significantly the rise in temperature independently of the inducer concentrations. Antimycin A (20 µM) combined with SHAM (2 mM), an alternative oxidase inhibitor, suppressed temperature rise. However, SHAM (2 mM) alone did not suppress the rise in temperature completely. An uncoupler, 2,4-DNP (1.5 mM) completely suppressed the rise in temperature. A diminished temperature rise was also detected in the presence of oligomycin (200 µM), an inhibitor of ATP synthase. Carboxyatractyloside, an adenine nucleotide translocator inhibitor, also suppressed the rise in temperature.</p> <p><strong>Conclusions:</strong> These results indicate that the SA-induced thermogenesis is depending on the mitochondrial oxidative phosphorylation. It may also suggest the existence of a second source of heat in the mitochondria that is SHAM-insensitive.</p> Hanna Skubatz ##submission.copyrightStatement## 2020-04-01 2020-04-01 28 37