Stomatal responses to environmental variation among Duranta erecta L.

S. Sahay, J. Kumar
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Abstract

Stomata are pores found in the epidermis of leaf that allow for consequently water loss through transpiration, pores are bound by specialized cells, called guard cells. Abnormalities present in the stomata such as contiguous stomata, twin stomata are of great importance to the global-water cycle and plant’s ability to respond to environmental variation. Elevation of atmospheric carbon di-oxide concentration often results in lower stomatal density. Inspection of the distribution of stomata in leaves growing in environment with different levels of available water gives clues for the role of stomata in plant adaptation. The plant environment is continuously changing, and stomatal apertures are perceived by the guard cells. They adapt to local and global changes on all timescales from minute to millennia.
直立杜鹃气孔对环境变化的响应。
气孔是在叶子表皮上发现的气孔,气孔允许水分通过蒸腾流失,气孔由称为保护细胞的特殊细胞连接。连生气孔、双生气孔等气孔的异常对全球水循环和植物对环境变化的响应能力具有重要意义。大气中二氧化碳浓度的升高往往导致气孔密度的降低。观察不同有效水分条件下叶片气孔的分布,为研究气孔在植物适应中的作用提供了线索。植物环境是不断变化的,气孔的开度是由保护细胞感知的。它们适应从一分钟到一千年的所有时间尺度上的本地和全球变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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