With references from articles explain how does soya beans and broccoli tolerate drought stress

Answer 1

1. In an article published in Frontiers in Plant Science, researchers studied the response of soybean plants to drought stress. The study found that soybean plants possess various adaptive mechanisms to tolerate drought stress. One key mechanism involves the accumulation of osmoprotectants such as proline and soluble sugars. These osmoprotectants help maintain cellular integrity and protect the plants from dehydration.

Additionally, the researchers discovered that soybean plants increase the expression of genes involved in the production of abscisic acid (ABA), a hormone that regulates water loss. ABA helps the plants close their stomata, reducing water loss through transpiration. Through this mechanism, soybean plants can conserve water during drought stress.

2. In another study published in the Journal of Experimental Botany, researchers investigated how broccoli plants respond to drought stress. The study revealed that drought-tolerant broccoli cultivars possess specific morphological and physiological traits that help them withstand water scarcity.

One important adaptation observed in drought-tolerant broccoli plants is their ability to efficiently allocate and use water. These plants exhibit deeper root systems, allowing them to access water from deeper soil layers. Additionally, they can regulate their stomatal conductance to reduce water loss. This tight control over stomatal aperture helps them maintain water balance during periods of limited water availability.

Furthermore, the researchers identified that drought-tolerant broccoli cultivars possess higher levels of antioxidants, which help protect cellular structures from oxidative damage caused by drought stress. These antioxidants play a crucial role in maintaining the overall health and productivity of the plants under water scarcity conditions.

Overall, both soybean plants and broccoli possess various mechanisms to tolerate drought stress. These include osmoprotectant accumulation, ABA regulation, root system development, controlled stomatal conductance, and antioxidant protection. These adaptations enable these crops to withstand drought conditions and continue their growth and productivity even in the presence of limited water availability.