Showing 5 results for Laili
Wan Anati Nabilah Wan Tajudin Shah, Nur Baiti Abd Murad, Jia Xin Ong, Shin Huey Ang, Nur Laili, Noor Baity Saidi,
Volume 0, Issue 0 (ARTICLES IN PRESS 2024)
Abstract
Fusarium wilt of bananas is a serious disease affecting banana plantations worldwide. In an effort to sustainably manage the disease, biological control is considered a promising alternative to agrochemicals that can cause detrimental effects on humans and the ecosystem. In this study, we investigated the biological control potential of the present collection of beneficial bacteria which includes Lactiplantibacillus plantarum AM2, Streptomyces morookaensis NRRL B-12429, Bacillus velezensis B4158, B. atrophaeus B363B, and B. amyloliquefaciens B942 against the causal agent of Fusarium wilt disease in banana, Fusarium oxysporum f. sp. cubense Tropical Race 4 (Foc TR4) through a dual culture assay and a greenhouse experiment. The inhibition range in vitro was between 31.0 to 42.1%, and the highest growth inhibition of Foc TR4 was observed for L. plantarum AM2. Infected banana plantlets that received the treatment with L. plantarum AM2 also showed a significant reduction in disease severity index as low as 24% compared to treatment with other beneficial bacteria. This study showed that L. plantarum AM2 has a good antagonistic effect on Foc TR4 mycelial growth and the most potential to control Fusarium wilt disease in bananas.
Volume 9, Issue 2 (Spring 2020)
Abstract
The aim of the present study was to identify the phytoplankton species which producing domoic acid and okadaic acid toxins in coastal waters of Banar Abbas city, and to determine the concentration of domoic acid and okadaic acid toxins in water and shellfish samples.Water sampling was performed in winter 2015 and summer 2016 from coastal areas overlooking the discharge of municipal and industrial effluents. Shellfish were collected from the coasts of Bandar Abbas and Bandar-e- Lengeh. Phytoplankton toxins were measured by kit method and instrumental analysis based on ELIZA method.Pseudonitzschia delicatissima, Pseudo-nitzschia pungens and Pseudo-nitzschia seriata were identified in the production of domoic acid, while Dinophysis caudate and Prorocentrum Lima were recorded as okadaic acid producers in the coastal waters of Bandar Abbas. Water-soluble okadaic acid showed significantly higher concentrations than domoic acid. Instudied shellfish samples (Circenita callipyga, Barbatia candida, Telescopium telescopiumandThalessa savignyi), the measured concentrations of okadaic acid ranged from 59.8 ± 2.38 to 121.96 ± 28.25 μg / kg. This value for domoic acid was from 0.85 to 83.59 ± 38.72 μg / kg.Compared to the guideline values, the observed concentrations of okadaic acid and domoic acid toxins in the studied shellfish were lower than the allowable level. But this value was recorded for the water-soluble domoic acid above the allowable value, which requires continuous monitoring to achieve the quantitative and qualitative pattern of phytoplankton toxins in order to support the safety of the marine ecosystem users in Hormozgan province.
Volume 12, Issue 1 (12-2022)
Abstract
In this study, the possible impact Asian sea bass fish (Lates calcarifer) cages culture on the population structure of phytoplankton in the coastal waters of Qeshm Island.Water sampling was done monthly for a period of six months in three stations from October 2018 to March 2019.The results showed that the mean Variations of total abundance of phytoplankton at the location of fish cages culture compared to the Reference station had a significant increase (P <0.05). At the location of cages culture, the Trophic status level was high (<5), the risk of eutrophication status (<4) and the value of trophic efficiency coefficient were high. According to the analysis of Simper test, Among the Forty-one genera identified, Noctiluca sp. with a relative abundance of % 82.37, contribution rate of 21.8% with high algal bloom at the location of cages in autumn season and then the genera Chaetoceros sp., Nitzschia sp. and Coclodinium sp. with a relative abundance of less than 10 percent in differentiating the population structure of phytoplankton have played a significant role in the dissimilarity of the population structure of phytoplankton between stations In general, in this study, the effects of fish farming activities on the population structure of phytoplankton are ineffective, but it causes the abundance of some species, available nutrients, increases the trophic level, and the probability of harmful algal blooms in the location of the cages culture.
Volume 13, Issue 1 (1-2024)
Abstract
In this study, a comprehensive assessment of the occurrence and spatial distribution of heavy metals including Nickel, Lead, Zinc, Copper, Cadmium and Chromium, as well as, TPHs in the surface sediments of the coastal areas and far from the coast of the Persian Gulf in Bushehr and Khuzestan provinces were performed to identify the possible sources of sediment contamination and determining the degree of pollution. Eight pollution indices were used to evaluate the quality of sediments in terms of heavy metal and TPH pollution. The investigated areas could be distinguished by a significant degree of heavy metal pollution of Nickel, Cadmium and Zinc. High concentrations of Nickel and Zinc were observed in stations around Nakhiloo, Bushehr. The comparison of average pollution indices between regions showed that both Bushehr and Khuzestan provinces, respectively, with the average of contamination degree (CD) (20.25 and 22.11), modified contamination degree (MCD) (3.38 and 3.69), pollution load index (PLI) (31.17 and 57.57), potential ecological risk index (PERI) (353.54 and 349.39) have a significant degree and risk of Nickel and Cadmium pollution, especially in Nakhiloo area, Bushehr. Investigating the spatial fluctuations of the concentration of TPHs in two provinces showed an increasing trend from Bushehr to Khuzestan. However, areas were located in no pollution or low pollution zonation and were safe from the adverse biological effects of TPHs. Comprehensive and impressive strategies to control and reduce these pollutions, especially in polluted areas, should be considered, so that the sources of these pollutions be managed.
Volume 13, Issue 1 (Winter 2025)
Abstract
Aims: This study aimed to evaluate the effectiveness of an innovative educational tool, the SADARI Calendar (KALDARI), in improving the knowledge and attitudes of women of reproductive age regarding breast self-examination in the working area of the Public Health Center of Selatpanjang.
Materials & Methods: This quasi-experimental study used a one-group pre-test-post-test approach and was conducted on 63 women aged 30-50 years selected using purposive sampling. Data were collected using structured questionnaires administered before and after the KALDARI education sessions, which included lectures and demonstrations of SADARI techniques. Descriptive and inferential analyses were conducted, with paired t-tests used to assess significant differences in respondents’ knowledge and attitudes before and after the intervention.
Findings: There was a significant increase in mean knowledge scores, from 7.76±2.85 to 9.88±2.77 (p=0.0001), and in attitude scores, from 8.47±2.31 to 11.28±2.38 (p=0.0001). These results demonstrated the effectiveness of the KALDARI educational tool in enhancing knowledge and fostering positive attitudes toward early breast cancer detection.
Conclusion: The KALDARI educational intervention is effective in improving respondents’ knowledge and attitudes regarding the importance of early breast cancer detection through self-examination (SADARI).
