Biology subjects

Nasrullah, N.

Publications and source records attributed to Nasrullah, N..

2 recordsLinked to original sources

bioRxiv2022

Decline in Environmental Quality and Spatial Dynamics of New City Area Development Metropolitan Mamminasata, South Sulawesi, Indonesia

AbstractsThe expansion of urban areas towards the development of new urban areas has an impact on changes in land use, socio-economic dynamics and a decrease in environmental quality. This study aims to analyze land use change as a determinant of environmental degradation and the spatial dynamics of metropolitan urban areas, the effect of land use change, housing development, infrastructure development, and land reclamation on the environmental degradation of the new city area, and control strategies environmental pollution and sustainable development of the new city area. This study uses a quantitative-qualitative concurrent triangulation design approach. Elaboration of data through observation, in-depth interviews, surveys, and documentation is used to describe the socio-economic community, and the decline in the environmental quality of new city area development in relation to the spatial dynamics of metropolitan urban areas. The results of the study show that the intensity of land use change coupled with an increase in socio-economic activities in the development of new city areas is positively associated with a decrease in environmental quality and segregation towards the spatial dynamics of metropolitan urban areas. Changes in land use, housing development, infrastructure development, and land reclamation simultaneously affect environmental quality degradation with a coefficient of determination of 64.96%. This study recommends strategies for controlling environmental pollution and sustainable development of new city areas for the needs of formulating urban development policies for Mamminasata Metropolitan South Sulawesi, Indonesia.

ecology↗

bioRxiv2020

Characterization of plasma membrane proteins from maize roots (Zea mays L.) under multiple abiotic stresses using LC-MS/MS technique

The aim of this study was to understand the response of maize inbred plants showing tolerance when exposed to various abiotic stresses (drought x low-N and waterlogging x low-N stress) simultaneously. The plants under stress expressed higher photosynthetic efficiency, increase in plant height, leaf area, and were able to maintain relatively high leaf relative water content and less decrease in morphological parameters. Therefore, to understand the processes controlling the tolerance to various stresses we analyzed maize roots plasma membranes proteome of treated plants only using LC-MS/MS techniques. The large number of proteins (295) were identified which were mainly trans membrane proteins, low abundance proteins, and root specific proteins. Further, a few proteins were selected like high-affinity Nitrate transporter, NR enzyme, PEP carboxylase, and Glutamine synthetase proteins their induction were validated by qRT-PCR approach in control and treated plants. The qRT-PCR results indicated the gene of all four proteins were expressed in treated and control plants. We concluded the high-affinity nitrate transporter proteins might represent the executive part of the protective response that plays a significant role in low-N stress tolerance. The presence of other major proteins like kinases, stress-responsive TFs, calmodulin, aquaporins, stress-related proteins, and many more proteins and their interaction with nitrate transporter proteins and their role can be validated only after comparing it with control samples.

molecular biology↗