Physiological responses of Lepidium meyenii plants to ultraviolet-B radiation challenge.

ABSTRACT:

Background

Ultraviolet-B (UV-B) radiation can affect several aspects ranging from plant growth to metabolic regulation. Maca is a Brassicaceae crop native to the Andes growing in above 3500 m of altitude. Although maca has been the focus mainly due to its nutraceutical properties, it remains unknown how maca plants tolerate to harsh environments, such as strong UV-B. Here, we present the first study that reports the physiological responses of maca plants to counteract and recover to repeated acute UV-B irradiation.

Results

In detail, plants were daily exposed to acute UV-B irradiation followed by a recovery period under controlled conditions. The results showed that repeated acute UV-B exposures reduced biomass and photosynthetic parameters, with gradual senescence induction

SUBMITTER: Huarancca Reyes T 

PROVIDER: S-EPMC6505108 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature