Eduardo J. Haverroth

Apr 21, 2024 | onlinelibrary.wiley.com | Eduardo J. Haverroth |Ian M. Rimer |Leonardo Oliveira |Departamento de Botánica

1 INTRODUCTION Water is transported through the xylem from the soil to the evaporating surfaces in the leaves. This upward movement of water against gravity is driven by a water potential gradient between the soil and the leaves (Dixon & Joly, 1895). During drought, the formation of embolism blocks the water flow through xylem conduits.

Jan 3, 2024 | onlinelibrary.wiley.com | Talitha S. Pereira |Leonardo Oliveira |Moab T. Andrade |Eduardo J. Haverroth

1 INTRODUCTION Understanding plant mortality in response to drought has been a recurrent topic in plant science, especially considering the growing number of die-off events being reported throughout the world (Hammond et al., 2022). Most studies, however, have focused on woody plant mortality, either because of their perennial life cycle or because of the critical ecosystem services they provide to humanity (Martinez-Vilalta et al., 2019; Trugman, 2022).

Aug 1, 2023 | onlinelibrary.wiley.com | Leonardo Oliveira |Matthew P. Taggart |Eduardo J. Haverroth |Moab T. Andrade

4.1 ABA levels and xylem embolism resistance Our results show that the internal levels of ABA do not impact the embolism resistance of stems of young (60 days old) plants of tomato in a similar way to what was observed for very old (170 day old) plants (Lamarque et al., 2020). This result contrasts with the negative impact of increased ABA levels on the stem embolism resistance of tomato plants at 90 and 120 days old (Lamarque et al., 2020).