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Home > Salicylic Acid-Mediated Alleviation of Cadmium Toxicity in Basmati Rice Oryza Sativa L.

Salicylic Acid-Mediated Alleviation of Cadmium Toxicity in Basmati Rice Oryza Sativa L.

Thesis Info

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External Link

Author

Fatima, Riffat Nasim

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2014

Thesis Completion Status

Completed

Subject

Botany

Language

English

Link

http://prr.hec.gov.pk/jspui/handle/123456789/1269

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727131961

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The Cd accumulation might result disturbances in plant metabolism causing several physio-biochemical and structural changes ultimately declining the crop productivity. Having recognized the adverse effects of Cd on plants it is imperative to understand the mechanisms of Cd effects through its accumulation, transportation and the relationships of Cd effects with growth, antioxidant systems and the mineral nutrients, and then the contribution of SA in alleviating the Cd toxicity in basmati rice. The experiments were conducted in two phases (plant and callus) under different combinations of Cd (control, 100, 500, 1000 and 1500 μM) without or with SA (0.0 and 0.1 mM) with four genotypes of basmati rice (Basmati-198, Basmati-2000, Basmati-370 and Kashmir Basmati). The results revealed variable Cd accumulation pattern in the both culture systems (seedling and callus). Roots showed higher Cd accumulation as compared to shoot and callus. The lower Cd accumulation of callus than root exhibited less sensitivity of callus to Cd-induced stress. A two phase linear concentration-dependent Cd accumulation pattern was observed in root and shoot whereas in callus Cd accumulated in a linear concentration-dependent fashion with the elevating Cd levels in the both culture media. However, protective effect of SA on root or shoot and the callus inhibited the Cd accumulation from the both media revealing the possibility of occurrence of the formation of stable SA-Cd complexes. Higher amounts of H 2 O 2 and MDA caused Cd-induced oxidative stress elevating the activities of antioxidants (CAT and POD) which accelerated the accumulation of solutes disturbing mineral nutrients and water status in the both media. The uneven SOD activity exhibited that differences existed among the genotypes to withstand the Cd toxicity. The application of SA in combination with the elevating Cd stress showed improvements in the SOD activity indicating that higher SOD activity might modulate the activities of other enzymes and regulate the solutes maintaining water relations under Cd-induced oxidative stress and ultimately the growth in the both culture media. Based on Cd translocation factor and the root STI, and the callus BCF and STI factors, Basmati-198 showed more tolerance to Cd toxicity followed by Basmati-2000 and Basmati-370 whereas Kashmir Basmati was observed prone to Cd toxicity.
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۳۔ سمندر کا قان

سمندر کا قانون

سڑک کے ساحلی کنارے پر

چھوٹی مچھلیاں قسمت کی ریڑھی پر ضرورت کے کھلونے سجائے

کنڈی سے لالچ کا چارہ لگائے

قدرِ زر میں اضافے کے گُر آزما رہی ہیں

بڑی مچھلیاں سڑک کے سمندر میں

تیز رو گاڑیوں میں بہتی

ان کو اُچکتی، نگلتی اور روندتی

ہارن کے ڈکار بجاتی ہوئی

بے سمت سفر پر رواں ہیں

سمندر کا یہ قانون اب خشکی پر بھی چل رہا ہے

الٰہی کوئی سونامی۔۔۔۔!

کوئی صر صر۔۔۔۔!

کوئی انقلاب۔۔۔!

Socio-Economic Factors of Differences in Public Health-Related Variables among Women: A Cross-Sectional Study

This study examines the association of living areas (slum and non-slum) with the selected public health-related variables in the presence of socioeconomic variables among married women and also having a child. A total of 150 women aged 18 to 49 are selected of which 50 women from slums and 100 women are from non-slum areas of Multan by applying the cluster and random sampling techniques. The cross-tabulation method is used to find the results. The dependent variable is Body Mass Index (BMI) and it is analyzed with the socio-economic variables such as mass media index, household characteristics and education. The findings exhibit that the BMI of the women living in the slum areas is low due to a low level of education, lack of mass media access, bad household structures, and poor or ignorant area. The women of the slum area have fewer mass media access, poor status of household characteristics and less education as compared to the women living in the non-slum areas. BMI is significantly affected by area, women's education and household characteristics except for physical work, job status, mass media access and husband education. The findings of this study suggest that to provide health facilities or to reduce the gap in public health, education, mass media access and households characteristics might be considered while making any decision related to the slum and non-slum areas.

An Analytical Study of Archaeological Discoveries from Bhamala, Taxila

The present study titled An Analytical Study of the Archaeological Discoveries from Bhamāla, Taxila focusses on the recent archaeological discoveries made during the three seasons of excavations carried out at the Buddhist site of Bhamāla by the Directorate of Archaeology and Museums, Government of Khyber Pakhtunkhwa Peshawar, in collaboration with the Department of Archaeology, Hazara University (Mansehra), and the University of Wisconsin-Madison, USA from 2012 to 2016. Bhamāla, one of the most important Buddhist sites, is located on the right bank of the Haro River in Khānpur (a sub-valley of Taxila). The site was first excavated by Sir John Marshall in 1930-31. But his brief report had left many questions that awaited answers using the material from the same site. Excavation at Bhamāla was resumed after about eight decades. Our excavation aimed at reconfirming the dates assigned by Sir John Marshall and establishing the archaeological profile of the site with scientific and latest archaeological methods. Our excavations at Bhamāla, on one hand, resulted in many remarkable discoveries in the history of Buddhist art and architecture in Gandhāra, and raised many new questions on the other. The subject of this dissertation covers both those unanswered questions as well as new questions raised by the important discoveries made during the most recent excavations. To address these questions precisely, we have divided this dissertation in eight chapters. In chapter one, an introduction to the present research and methodology is given. The second chapter gives a review of all available literature relevant to the subject of dissertation. An Overall review of the archaeological findings at the site of Bhamāla is provided in Chapter Three. Chapter Four deals with the detailed analyses of the structural remains including the main stupas A & B flanked by chapels, votive stupas, the Parinirvāṇa chamber and the monastic establishments. A comparative and scientific (material) analyses of the terracotta sculptures reported during our recent excavations is given in chapter Five. Chapter Six presents a detailed analysis of the stucco sculptures from Bhamāla. Chapter seven deals with the numismatic evidences discovered during our recent excavations at the site. Chapter Eight is a detailed summary and discussion of the information presented in the preceding chapters. The Conclusion is followed by my suggestions for further archaeological research at Bhamāla.