Morphological and Biochemical Changes in Moth Bean during Drought Stress

The current investigation on the repercussions of drought stress on the growth parameters of the Moth bean (Vigna aconitifolia) has been carried out in a semi-field condition. Two sets of local moth bean cultivars (RMO-40: fifteen in each) were prepared, and one was subjected to terminal drought stress. The rest was maintained with proper watering as a control set. The treated plants were thoroughly evaluated based on leaf length, root length, and relative leaf water content in comparison with the control ones. The findings of this study reveal a significant impact of drought stress on moth bean's growth and physiological performance. Under drought conditions, treated plants exhibited considerable reductions in leaf length and root length compared to their well-watered counterparts. Additionally, the relative leaf water content declined under drought stress, indicating decreased water uptake and retention within the plants under stress. These outcomes underscore the vulnerability of moth bean to drought stress, emphasizing the urgency of developing efficient water management strategies and drought-resistant varieties to safeguard food security in regions where this legume serves as a staple crop. This research highlights the importance of understanding the adverse effects of drought stress on moth bean's growth parameters for sustainable agriculture and food production.

Influence of foliar application of glycinebetaine on Tagetes erecta L yield cultivated under salinity conditions

Abstract Tagetes genus of Composite family consider one of the most favorite floriculture plants. Therefore, of particular interest examine the salt tolerance of this bedding and coloring agent plant. In this research, was report the role of glycinebetaine (GB) in attenuating the adverse impacts of salt stress in African marigold plant, along with their anti-oxidative capacities and biochemical attributes. The salt stressed African marigold (100 and 150 mM NaCl) was treated with GB at 200 mM, beside untreated control plants. According to the obtained results, the growth characters were negatively in salt stressed plants but a mitigate impact of GB were observed in this respect. Obviously, the morphological as well as some physiological characters were reduced with salinity treatments while GB treatment reverses these effects. Overall, the alleviate impact of GB on the negative impact of salt stress was enhanced through improving total phenolic and antioxidant enzyme activity. Further, it is concluded that GB concentration induces the activities of antioxidative enzymes which scavenged ROS increased under saline conditions.

Resumo O Tagetes, da família Composite, é um dos gêneros mais apreciados de plantas de floricultura. Portanto, é de particular interesse examinar a tolerância ao sal desta planta de substrato e corante. Nesta pesquisa, foi relatado o papel da glicinebetaína (GB) na atenuação dos impactos adversos do estresse salino na calêndula africana, juntamente com suas capacidades antioxidantes e atributos bioquímicos. A calêndula africana estressada com sal (NaCl 100 e 150 mM) foi tratada com GB a 200 mM, ao lado de plantas de controle não tratadas. De acordo com os resultados obtidos, os caracteres de crescimento foram negativos em plantas estressadas por sal, mas um impacto mitigado de GB foi observado neste aspecto. Obviamente, os caracteres morfológicos e fisiológicos foram reduzidos com os tratamentos de salinidade, enquanto o tratamento com GB reverteu esses efeitos. No geral, o impacto de alívio do GB no impacto negativo do estresse salino foi aprimorado através da melhoria da atividade das enzimas fenólicas e antioxidantes totais. Além disso, conclui-se que a concentração de GB induz as atividades de enzimas antioxidantes que sequestraram ROS aumentadas em condições salinas.

Influence of foliar application of glycinebetaine on Tagetes erecta L yield cultivated under salinity conditions / Influência da aplicação foliar de glicinebetaína na produtividade de Tagetes erecta L cultivada em condições de salinidade

Tagetes genus of Composite family consider one of the most favorite floriculture plants. Therefore, of particular interest examine the salt tolerance of this bedding and coloring agent plant. In this research, was report the role of glycinebetaine (GB) in attenuating the adverse impacts of salt stress in African marigold plant, along with their anti-oxidative capacities and biochemical attributes. The salt stressed African marigold (100 and 150 mM NaCl) was treated with GB at 200 mM, beside untreated control plants. According to the obtained results, the growth characters were negatively in salt stressed plants but a mitigate impact of GB were observed in this respect. Obviously, the morphological as well as some physiological characters were reduced with salinity treatments while GB treatment reverses these effects. Overall, the alleviate impact of GB on the negative impact of salt stress was enhanced through improving total phenolic and antioxidant enzyme activity. Further, it is concluded that GB concentration induces the activities of antioxidative enzymes which scavenged ROS increased under saline conditions.

O Tagetes, da família Composite, é um dos gêneros mais apreciados de plantas de floricultura. Portanto, é de particular interesse examinar a tolerância ao sal desta planta de substrato e corante. Nesta pesquisa, foi relatado o papel da glicinebetaína (GB) na atenuação dos impactos adversos do estresse salino na calêndula africana, juntamente com suas capacidades antioxidantes e atributos bioquímicos. A calêndula africana estressada com sal (NaCl 100 e 150 mM) foi tratada com GB a 200 mM, ao lado de plantas de controle não tratadas. De acordo com os resultados obtidos, os caracteres de crescimento foram negativos em plantas estressadas por sal, mas um impacto mitigado de GB foi observado neste aspecto. Obviamente, os caracteres morfológicos e fisiológicos foram reduzidos com os tratamentos de salinidade, enquanto o tratamento com GB reverteu esses efeitos. No geral, o impacto de alívio do GB no impacto negativo do estresse salino foi aprimorado através da melhoria da atividade das enzimas fenólicas e antioxidantes totais. Além disso, conclui-se que a concentração de GB induz as atividades de enzimas antioxidantes que sequestraram ROS aumentadas em condições salinas.

Expression analysis of bZIP transcription factor encoding genes in response to water deficit stress in rice.

In plants, basic region/leucine zipper motif (bZIP) transcription factors regulate several developmental processes and activate genes in response to biotic and abiotic stresses. Role of stress responsive bZIP transcription factors was studied in paddy in relation to different stages of development and water deficit stress (WDS) in a drought tolerant cultivar N22 and susceptible IR 64. Further, relative water content (RWC), membrane stability index (MSI) and abscisic acid (ABA) content were measured as indices of WDS at different stages of development and levels of stress. Expression of stress responsive bZIP transcription factors was directly correlated to developmental stage and WDS and indirectly to RWC, MSI and ABA content.