In the scenario of global climate change, understanding how plants respond to drought is critical for developing future crops that face restricted water resources. This present study focuses on the role of WRKY transcription factors on drought tolerance in tomato, Solanum lycopersicum L., which is a significant vegetable crop. WRKY transcription factors are a group of proteins that regulate a wild range of growth and developmental processes in plants such as seed germination and dormancy and the stress response. These transcription factors are defined by the presence of a DNA-binding domain, namely, the WRKY domain. It is well-known that WRKY transcription factors can interact with a variety of proteins and therefore control downstream activities. It aims to simulate the effect of curcumin, a bioactive compound with regulatory capacity, on the protein–protein interaction events by WRKY transcription factors with an emphasis on drought stress. It was found that curcumin binds to WRKY with an energy of −11.43 kcal/mol with inhibitory concentration (Ki) 0.12 mM and has the potential to improve fruit quality and reinforce drought tolerance of S. lycopersicum, according to the results based on bioinformatics tools. The root means square deviation (RMSD) of the C-α, the backbone of 2AYD with ligand coupled complex, displayed a very stable structure with just a little variation of 1.89 Å. MD simulation trajectory of Cα atoms of 2AYD bound to Curcumin revealed more un-ordered orientation in PC1 and PC10 modes and more toward negative correlation from the initial 400 frames during PCA. Establishing the binding energies of the ligand–target interaction is essential in order to characterize the compound’s binding affinity to the drought transcription factor. We think we have identified a phyto-agent called curcumin that has the potential to enhance the drought tolerance. Compared to the part of the mismatch repair-base technique that can be used to fix drought related genes, curcumin performed better in a drop-in crop yield over time, and it was suggested that curcumin is a potential candidate factor for improving drought tolerance in tomatoes, and it needs future validation by experiments in laboratory and field.
Global climate change is becoming an alarming problem of the 21st century, with global warming as the biggest challenge. Anthropogenic activities have added significant quantities of greenhouse gases (GHGs) to the atmosphere ever since the Industrial Revolution. The agriculture sector is a significant source of GHG emission in many countries. Crop stubble burning or agricultural biomass burning is one of the highest contributors to this emission. In India, around 92 million tons of crop residue is burned every year, causing several negative impacts on the climate as well as on human health. Under the Kyoto Protocol, Carbon trading and Clean Development Mechanism (CDM) are the two robust processes to mitigate the GHG emissions for any country. In this study, we have assessed the overview of world’s carbon market and analysed how much carbon credit India may have traded in the world carbon market, if emission from the crop residue burning was stopped in the Indian agricultural sector. Further we have fitted an econometric model to determine the effect of carbon trading on other stock market variable.
Chironji (Buchanania cochinchinensis) is an indigenous tree species of Indian subcontinent which belongs to the Anacardiaceae family. It has tremendous potential to uplift the socio-economic status of village dwellers and tribal people. It is used for various purposes including fruits, fuel, fodder and medicines. The species is facing severe ecological and anthropogenic pressures due to indiscriminate harvesting and illicit felling. IUCN has designated Chironji as a vulnerable species indicating that it may be on the verge of extinction if proper conservation measures are not taken very soon. The reports on its conservation and genetic improvement are very less. Hence, it is needed to devise the strategies to conserve its germplasm and genetically improve the species for higher fruit yield. The genetic diversity present in the species is also needed to be studied for effective conservation. Eco-distribution mapping and Molecular characterization using modern tools like molecular markers can give an accurate idea about the genetic diversity in lesser time and will also help in devising the breeding strategies and conservation of its diverse genotype. This review encompasses the researches done on Chironji till date detailing the importance of its genetic diversity and tries to indicate the future conservation and improvement strategies to be taken to fill up the remaining gaps.
One of the greatest challenges to ecosystems is the rapidity of climate change, and their ability to adjust swiftly will be constrained. Climate change will disrupt the ecological balances, causing species to track suitable habitats for survival. Consequently, understanding the species' response to climate change is crucial for its conservation and management, and for enhancing biodiversity through effective management. This research intends to examine the response of the vulnerable Buchanania cochinchinensis species to climate change. We modeled the potential suitable habitats of B. cochinchinensis for the present and future climatic scenario proxies based on the Shared Socioeconomic Pathways (SSP) i.e. SSP126, 245, 370 and 585. Maxent was used to simulate the potential habitats of B. cochinchinensis. The study found ~ 28313 sq km (~ 10.7% of the study area) was a potentially suitable habitat of B. cochinchinensis for the current scenario. The majority of the suitable habitat area ~ 25169 sq km occurred in the central and southern part of the study area. The future projection shows that the suitable habitat to largely increase in the range of 10.5–20% across all the SSPs, with maximum gain ~ 20% for SSP 126. The mean temperature of the wettest quarter (Bio_08) was the most influential contributing variable in limiting the distribution of B. cochinchinensis. The majority of the suitable habitat area occurred in the vegetation landscape. The study shows southward shifting of B. cochinchinensis habitat by 2050. The phytosociological research determined B. cochinchinensis as Shorea robusta's primary associate. Our research provides significant insight into the prospective distribution scenario of B. cochinchinensis habitat and its response to diverse socioeconomic scenarios, and offers a solid foundation for management of this extremely important species.
One of the crucial links of ecosystem is forest and its resources. Apart from producing direct use values, it provides several environmental benefits like pollution control, carbon sequestration, nutrient cycling, micro climate regulations etc. Forests are still an almost neglected sector and are consistently undervalued in economic and social terms. Though the area under forest cover has increased, India is still far from its target. Due to different peculiar characteristics, we are not able to valuate forest resources by traditional method of valuation. There is a need to proper insight into forest cover and its valuation methodologies. Through this article, we have tried to estimate the growth pattern, status and trends in India’s forest cover along with its method of valuation.
Aims: Water is an important natural resource supporting life and growth of plants heavily relies on water availability throughout its life cycle. Moisture stress is a major limiting factor in forest crops leading to unsuccessful seed germination. This study investigates the impact of moisture stress on the seed germination of two important agroforestry species Dalbergia sissoo and Gmelina arborea through manipulating watering schedules after sowing seeds. Study Design: Two independent experiments for Dalbergia sissoo and Gmelina arborea were designed in a Completely Randomized Block Design (CRBD) with six treatments and three replications for each treatment Place of Study: Faculty of Forestry, Birsa Agricultural University, Ranchi. Methodology: The complete experiment was carried inside a temporary polyhouse where the experimental materials were exposed to the six different watering schedule treatments. The first irrigation for all the treatments were started at the same time. The data recorded during the experiment were subjected to analysis of variance (ANOVA) for statistical significance and difference among treatments were determined by Duncan’s Multiple range test at (P = .05) level. Results: Significant differences were observed among the treatments and the results show that with increasing level of moisture stress, the germination performance in both species is highly reduced both in terms of germination percentage and germination energy. Conclusion: Daily watering to the seeds can help to achieve maximum and early seed germination as evident from data of germination energy with maximum values recorded for the treatments with daily watering schedule.
Cold or frost stress is one of the severest abiotic stresses which hinders the distribution, productivity and yield of Eucalyptus worldwide. Almost all aspects of cellular functions are affected under the exposure of cold stress. Being an economically important species, development of cold tolerance in Eucalyptus is very important. Different signalling cascades are known to be activated under cold stress. ICE1-CBF pathway is found to play master regulatory role in cold stress sensing pathways in majority of woody forest plants. In this study, across the genus Eucalyptus, 24 cold-regulated genes (CORs) are identified, divided in 3 gene families namely ICE, CBF and DHN, characterized by the presence of signature motifs and conserved domains in the sequences. Exhaustive location on chromosomes and sequences for these genes are acquired from several databases. These sequences are further analysed with several bioinformatic tools to establish evolutionary relationships among them. Predicted protein sequences from BLASTX are subjected to multiple sequence analysis and percentage similarity matrices are constructed with BLOSUM62. Phylogenetic trees for every gene family are developed using MEGA X using the Maximum Likelihood (ML) method and statistically validated through bootstrapping method. The analysis of these ICE, CBF and DHN genes directed towards cross-talk of different stress response pathways. Cluster of CBF genes are found in Eucalyptus resembling high similarity suggesting a major duplication event during the evolutionary track of this genus. The results of this study will prove to be beneficial in understanding the cold acclimation process and developing genetically improved cold tolerant Eucalyptus.
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