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Mix cropping of legume (Vigna Radiata) and non-legume (Zea Mays) crops alleviates water stress as revealed by growth and biochemical parameters

100%

Khan K. U. , Murad W. , Azizullah A. , Rahman H. , Khan M. D.

Acta Physiologiae Plantarum

2017

tom 39

nr 01

Differential physiological and ultrastructural responses of cottonseeds under Pb toxicity

100%

Khan M. , Khan M. D. , Ali B. , Noor M. , Zhu S.-J.

Polish Journal of Environmental Studies

2014

tom 23

nr 6

Lead (Pb) is a toxic heavy metal that causes physiological and morphological changes in plants. Our current study was aimed at observing Pb-induced changes in seeds of two upland cotton varieties (TM-1 and Z- 747) that were exposed for 24 hours to various Pb concentrations (0, 50, 100, 300, and 500 μM). Seeds of TM-1 showed higher germination percentages, water uptake, and cell viability as compared to Z-747. Changes in nuclei shape, their partial disappearance, and increase in vacuole size were the initial signs of lead toxicity in Z-747, while TM-1 maintained its typical conformations. Cell wall thickening; increase in the number of mitochondria, protein, and lipid bodies; and vacuolation were more prominent in TM-1. In contrast, plasmolytic shrinkage and scattered cell organelles were the key characteristics of Z-747 at higher doses of Pb. Those observations demonstrated that seeds of TM-1 were more tolerant to Pb stress as compared to Z-747 and may be considered a preferred choice for culture on Pb-contaminated soils.

Pesticide-induced physiological, metabolic and ultramorphological alterations in leaves of young maize seedlings

58%

Lei M. , Raza I. , Deeba F. , Jamil M. , Naeem R. , Azizullah A. , Khattak B. , Shah A. , Ali I. , Jin Z. S. , Khan M. D.

Polish Journal of Environmental Studies

2020

tom 29

nr 3