Regulation of Plant Responses to Heat and Drought Stress II
A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".
Deadline for manuscript submissions: 31 October 2024 | Viewed by 286
Special Issue Editors
Interests: plant science; abiotic stress; heat stress; maize; RNA alternative splicing
Special Issues, Collections and Topics in MDPI journals
2. Crop and Soil Sciences, North Carolina State University, Raleigh, NC 27695, USA
Interests: environmental stress; ozone; plant physiology and biochemistry; heat stress; soybeans; wheat
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
High temperatures and drought stresses disturb cellular homeostasis and impede growth and development in plants. Extensive agricultural losses are attributed to heat stress or drought stress, often in combination or with other stresses. Plants have evolved a variety of responses to heat and drought stress to minimize damage and to protect themselves from further stress. Plant scientists and breeders are challenged to understand how plants, especially crop plants, can better tolerate heat and drought stress. The responses of plants to heat and drought stress have been extensively studied, but the means and mechanisms to confer tolerance are less well understood. This Special Issue of Plants will highlight the regulatory mechanisms of plant response to heat and drought stress, including but not limited to transcriptional and post-transcriptional regulation, metabolism adjustment, and physiological processes that improve the heat and drought stress tolerance of plants.
Dr. Zhaoxia Li
Prof. Dr. Kent Burkey
Guest Editors
Manuscript Submission Information
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Keywords
- Abies pinsapo
- drought
- photosynthesis
- stomatal conductance
- resilience
- water stress
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Drought resilience of carbon and water balances of Abies pinsapo seedling under experimental water shortage
María Trujillo-Ríos 1, Victor Lechuga 2, Benjamín Viñegla 2, José Ignacio Seco1, José Antonio Carreira 2, Juan Carlos Linares1*
1 Dpto. Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Sevilla, Spain. [email protected] (M.T.R), [email protected] (J.I.S), [email protected] (J.C.L.)
2 Centro de Estudios Avanzados en Ciencias de la Tierra, Energía y Medio Ambiente (CEACTEMA), Universidad de Jaén, Spain.
*Correspondence: [email protected], (J.C.L.)
Abstract: Rising aridity due to global warming has increased the interests about response mechanisms in plant species and possible adaptive management measures to conserve species that are currently threatened or may become threatened under future climate change scenarios. The aim of this research was to characterize resistance (avoiding or tolerant dynamics), recovery and resilience to drought in Abies pinsapo plants monitored under experimental drought conditions. Plants were monitored under non-water-limiting soil conditions prior to an irrigation suppression treatment for a four-week period of time and then irrigated to recover the previous water status. Individual values of net photosynthetic rate and stomatal water vapor conductance measured before, during and after the drought treatment were used to quantify resilience indices, while the avoidance or tolerance dynamics of each plant were estimated by regression models. The results obtained indicated that photosynthetic rate showed a higher percentage of variance explained in the tolerant model for all individuals, while stomatal conductance presented similar values of variance explained for the avoidant and tolerant models, with no significant differences. The results reveal that there is no relationship between drought resilience and plant avoidance or tolerance dynamics. Furthermore, it is clear from the results that drought resilience is strongly dependent on the photosynthetic rate prior to the stress situation. Individuals with higher photosynthetic rates showed less resilience (negative correlation).
