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Register a new userThe Accumulative Capacity of three plant species ( Eucaleptus camaldulensis L., Acacia cyanophylla L. and Ricinus communis L.) to cadmium
القدرة التراكمية لثلاثة أنواع نباتية (الأوكاليبتوس Eucaleptus camaldulensis و الأكاسيا Acacia cyanophylla و الخروع Ricinus communis ) لعنصر الكادميوم
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Tishreen University ورقة بحثية
Publication date
2015
fields
Biology
and research's language is
العربية
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Shamra Editor
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تهدف هذه الدراسة إلى مقارنة محتوى ثلاثة أنواع نباتية ( الأوكاليبتوس .Eucaleptus camaldulensis L و الأكاسيا .Acacia cyanophylla L و الخروع Ricinus communis L. ) من عنصر الكادميوم (Cd) الناتج عن مصادر التلوث المختلفة الموجودة في منطقة الدراسة ( شارع عبد القادر الحسيني- اللاذقية ) و بخاصة الناتجة عن الحركة المرورية. جمعت العينات من أجزاء مختلفة ( أوراق , خشب , قلف ) من الأنواع المذكورة بالإضافة لعينات من التربة, ثم جهّزت العينات و تم تحليلها بواسطة جهاز التحليل الطيفي بالامتصاص الذري (Atomic Absorption Spectrophotometer). أظهرت النتائج اختلافاً في محتوى عنصر الكادميوم في الأنواع المدروسة حيث تراوحت مابين ((0.25 mg/kg و(0.42 mg/kg) بالوزن الجاف, حيث بلغ أعلى محتوى له في خشب الخروع mg/kg) 0.42) و من ثم خشب الأوكاليبتوس (mg/kg 0.4) بينما بلغ أدنى محتوى (mg/kg 0.32) في خشب الأكاسيا. أظهر الخروع و من ثم الأكاسيا قدرة عالية على مراكمة الكادميوم حيث بلغ معامل التركيز الحيوي للخروع (1.33(BF= و للأكاسيا (1.13BF=).
This study aims to compare the ability of three plant species (Eucaleptus camaldulensis L., Acacia cyanophylla L. and Ricinus communis L.) on the accumulation of cadmium (Cd) resulting from the different existing pollution sources in the study area (Abdul Qader Al Husseini Street - Latakia) especially resulting from traffic. The samples were collected from different parts (leaves, wood, bark) of the species mentioned in addition to samples of the soil, then the samples were processed and analyzed by atomic absorption spectrophotometer. The results showed a difference in the content of cadmium in the studied species, ranged between (0.25 mg/kg) and (0.42 mg/kg) dry weight, where the highest content in Ricinus wood (0.42 mg/kg) and then Eucalyptus wood (0.4 mg/kg) and minimum content in Acacia wood (0.32mg/kg). Ricinus and Acacia showed high ability to accumulate cadmium reaching Bioconcentration factor (BF=1.33) for Ricinus and (BF=1.13) for Acacia
Artificial intelligence review:
Research summary
تهدف هذه الدراسة إلى مقارنة قدرة ثلاثة أنواع نباتية (الأوكاليبتوس، الأكاسيا، والخروع) على تراكم عنصر الكادميوم الناتج عن مصادر التلوث المختلفة في منطقة الدراسة (شارع عبد القادر الحسيني - اللاذقية)، خاصة الناتجة عن الحركة المرورية. جمعت العينات من أجزاء مختلفة من النباتات (الأوراق، الخشب، القلف) بالإضافة إلى عينات التربة، وتم تحليلها باستخدام جهاز الامتصاص الذري الطيفي. أظهرت النتائج اختلافًا في محتوى الكادميوم في الأنواع المدروسة، حيث تراوح بين (0.25 mg/kg) و(0.42 mg/kg) بالوزن الجاف. كان أعلى محتوى للكادميوم في خشب الخروع (0.42 mg/kg) يليه خشب الأوكاليبتوس (0.4 mg/kg)، بينما كان أدنى محتوى في خشب الأكاسيا (0.32 mg/kg). أظهر الخروع والأكاسيا قدرة عالية على مراكمة الكادميوم، حيث بلغ معامل التركيز الحيوي للخروع (BF=1.33) وللأكاسيا (BF=1.13).
Critical review
دراسة نقدية: تقدم هذه الدراسة معلومات قيمة حول قدرة بعض النباتات على تراكم الكادميوم، مما يمكن أن يسهم في تطوير تقنيات المعالجة النباتية للتربة الملوثة. ومع ذلك، كان من الممكن أن تكون الدراسة أكثر شمولية إذا تضمنت تحليلاً أعمق للعوامل البيئية الأخرى التي قد تؤثر على تراكم الكادميوم، مثل نوعية الهواء والماء في منطقة الدراسة. كما أن الدراسة لم تتطرق إلى الآثار الصحية المحتملة لتراكم الكادميوم في هذه النباتات على الإنسان والحيوان، وهو جانب مهم يجب أخذه بعين الاعتبار.
Questions related to the research
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ما هي الأنواع النباتية الثلاثة التي تمت دراستها في البحث؟
الأنواع النباتية الثلاثة هي الأوكاليبتوس، الأكاسيا، والخروع.
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ما هو أعلى محتوى للكادميوم تم العثور عليه وأين؟
أعلى محتوى للكادميوم كان في خشب الخروع وبلغ (0.42 mg/kg).
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ما هو معامل التركيز الحيوي (BF) لنبات الخروع؟
معامل التركيز الحيوي (BF) لنبات الخروع هو 1.33.
-
ما هي التقنية المستخدمة لتحليل العينات في الدراسة؟
التقنية المستخدمة لتحليل العينات هي جهاز الامتصاص الذري الطيفي.
References used
ALLOWAY, B. J. Schwermetalle in Boden Analytik, Konyentration, Wechselwirkungen. Springer- Verlag Berlin, Heidelberg New York.ISBN 3-540-62086-9 , 1999 ,p 540
ANDERSON, C.W.N.؛ BROOKS, R.R.؛ CHIARUCCI, A.؛ LACOSTE, C.J.؛ LEBLANC, M.؛ ROBINSON, B.H.؛ SIMCOCK, R. ؛ TEWART, R.B. Phytomining for nickel, thallium and gold. Journal of Geochemical Exploration 67, 1999, 407–415
ASSUNCAO, A.G.L.؛ SCHAT, H. ؛ ARTS, M.G.M. Thlaspi caerulescens, an attractive model species to study heavy metal hyperaccumulation in plants. New Phytologist. 159,2003: 351–360
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The plants samples were collected from leafs, wood, and bark for plant sp
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This investigation was done to study the effect of spray for two times with
CaCl2 0.5% and 1%, high potassium fertilizer and dipping with 2% CaCl2, in
addition to packaging with polyethylene films on the storability of pear fruits
"Coscia C.V". Th
e results showed the significant superiority of high potassium
fertilizer treatment on the other treatments concerning total and single sugars
after harvesting time, while there weren't significant differences between the
other treatments concerning the remaining indicators. After four months of
storage, the packaging treatments were able to the significantly reduction of
weight loss, in addition to preserving the firmness and total soluble solids in the
comparison with unpackaged ones, the average of weight loss in unpackaged
treatments was 15% and 0.65% in packaging treatments, which led to stop the
storage of unpackaged treatments and continue packaging treatments until 7
months. After 7 months, the results showed that the dipping with 2% CaCl2
revealed the high weight loss, while was the least with high potassium fertilizer
treatment, on the other hand there were no significant differences between
treatments for firmness, total soluble solids and tetra table acidity, while total
and single sugars showed significant differences between treatments. Moreover,
the sensory tests assured the importance of packaging with CaCl2 treatments to
improve storability and quality of pear fruits, which CaCl2 1% packaging
treatment got the highest values for most of sensory tests.
Single nodes and axillary buds excised from adult trees of Myrtle (Myrtus
communis L.) grown in the field under natural conditions at Damascus
countryside (Ain Elfiegh) were used as primary explants, which were surfacedisinfected
by 70% Ethanol an
d Clorox containing 5.25 % Sodium Hypoclorite
with a drop of Tween 20 for different periods and concentrations before being
placed onto MS basal medium. Established cultures were then transferred onto
MS basal medium containing a combination of growth regulators at different
concentrations (BA at 2.22 and 4.44 μM) each with NAA at 0.54, 1.62, 5.4 μM
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μM BA with 1.47 μM IBA and GA3 at 0.58 μM.
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(tran
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of leaves, bark, wood and soil were collected, and then processed (drying, digesting and
filtrating) for analysis using an atomic absorption spectrophotometer. The results showed
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