Effects of nickel toxicity on morphological and physiological aspects of osmoregulation in <Emphasis Type="Italic">Typha domingensis</Emphasis> (<Emphasis Type="Italic">Typhaceae</Emphasis>) populations |
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Authors: | Noreen Akhtar Mansoor Hameed Abdul Hamid Fahim Nawaz Khawaja Shafique Ahmad Jiabin Deng Ansar Mehmood Claudia Segovia-Salcedo Muhammad Muslim Shahnaz Abdul Qadir Khan |
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Institution: | 1.Department of Botany,Government College Women University,Faisalabad,Pakistan;2.Department of Botany,University of Agriculture,Faisalabad,Pakistan;3.Department of Horticulture,University of Poonch,Rawalakot,Pakistan;4.Department of Agronomy,Muhammad Nawaz Sharif, University of Agriculture,Multan,Pakistan;5.Department of Botany,University of Poonch,Rawalakot,Pakistan;6.School of Geography and Tourism,Guizhou Education University,Guiyang,China;7.Departamento de Ciencias de la Vida y Agricultura,Universidad de las Fuerzas Armadas ESPE,Sangolquí,Ecuador;8.Govt. Post Graduate College of Science,Faisalabad,Pakistan |
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Abstract: | The present work examined morphological and physiological aspects of osmoregulation in some differently adapted populations of Typha domingensis. Six populations of T. domingensis were grown in waterlogged conditions under four levels of nickel (0, 50, 100 and 1500 mg/kg of Ni). The Ni tolerance was explored on the basis of different characteristics of shoots. Along with the increasing level of Ni stress, all populations showed an increment of proline and glycinebetaine content, low photosynthetic and transpiration rates and decreased chlorophyll content. Analyzed morphological parameters revealed possible adaptations to deal with Ni stress. The less tolerant Sahianwala population produced more aerenchyma, less accumulation of osmolytes and reduced shoot fresh weight under Ni stress than the tolerant ones. Our results suggested that T. domingensis has the capacity to survive under Ni stress and could be used for the absorption of toxic metal ions from industrially polluted water. |
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