Ethylene enhanced waterlogging tolerance by changing root architecture and inducing aerenchyma formation in maize seedlings

Geng, Shiying; Lin, Ziqing; Xie, Sihong; Xiao, Jin‐zhong; Wang, Haiyan; Zhao, Xingbo; Zhou, Yuyi; Liu, Duan

doi:10.1016/j.jplph.2023.154042

Cited by 6 publications

(1 citation statement)

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“…An increase in the activity of antioxidant enzymes has been reported in fava bean plants (Vicia faba L.) in the recovery period, after waterlogging (Pociecha 2013). It has also been observed that some plants have acclimation responses to waterlogging, such as the formation of adventitious roots that provide them with water, nutrients, and anchoring (Qi et al 2020; Nuruzzaman Manik et al 2022), as well as the formation of aerenchyma as a strategy for supplying O 2 from the shoots to the roots and to ventilate gasses such as CO 2 and methane in conditions of oxygen de ciency in the soil (Evans 2004; Kehoe et al 2022;Geng et al 2023). It has been reported that the effects of waterlogging on plants can be observed even long after the stress has ceased (Pociecha 2013;Posso et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Recovery period of long-term waterlogging exacerbates damage to photochemical phase of photosynthesis in bush beans (Phaseolus vulgaris L.).

Velasco,

Ligarreto,

Diaz

et al. 2023

Preprint

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Beans are considered one of the basic products of the farmer economy and food security. In some regions of the tropics, the presence of climatic phenomena involves the increase in the frequency and intensity of rainfall and causes different waterlogging periods. The objective of this work was to determine the effect of waterlogging duration and recovery on the growth and photosynthesis of bean plants. The experiment was carried out in the greenhouses, using a completely randomized design with four replicates per treatment. Bush bean plants that were subjected when they had 3-4 true leaves, to two periods of waterlogging, short-term (STW) and long-term (LTW), 7 and 14 days, respectively and 7 days of recovery period in both treatments, and one control in drainage condition. The STW caused a significant decrease in photosynthesis (Pn) (82%), stomatal conductance (gs) (83%) and an increase in the content of malondialdehyde (MDA) and electrolyte leakage (EL) compared to control plants. In STW-RP, Pn, WUE, Ci/gs ratio and photochemical quenching (qP) increased. Otherwise, the LWT reduced Pn (94%) and gs (93%) compared to control plants. At the LTW-RP there was a reduction in the maximum photochemical efficiency of PSII (Fv/Fm), the content of chlorophyll and carotenoids and an increase in non-photochemical quenching (NPQ). Proline increase in LTW-RP was not enough to avoid damage to the PSII. The STW caused moderate stress on the photosynthesis of bean plants although plants can recover their photosynthetic activity in a low proportion. The LTW increases the damage of the photosynthetic apparatus, and its effect is exacerbated in the subsequent LTW-RP.

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