Publication: Spring stomatal response to vapor pressure deficit as a marker for desert truffle fruiting
Authors
Navarro-Ródenas, Alfonso ; Marqués Gálvez, José Eduardo ; Morte Gómez, María Asunción
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Publisher
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DOI
https://doi.org/10.1007/s00572-020-00966-8
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info:eu-repo/semantics/article
Description
©<2020>. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by /4.0/
This document is the Accepted version of a Published Work that appeared in final form in [Mycorrhiza]. To access the final edited and published work see[https://doi.org/10.1007/s00572-020-00966-8]
Abstract
The cultivation of desert truffle Terfezia claveryi using Helianthemum almeriense as a host plant has recently become a solid
alternative crop in the Mediterranean region due to its adaptation to arid and semiarid ecosystems, which are expected to increase
during the following years because of climate change. However, management models are still being developed in order to
improve and stabilize the production, which varies greatly from one year to another. According to gatherers and farmers, one
of the key factors for desert truffle production is the plant phenology in spring, which, in turn, depends on environmental
conditions. In this manuscript, we have characterized the physiological, morphological, and molecular responses of the mycorrhizal
plants in spring, coinciding with the fructification period of the plant and fungal species. Thanks to this characterization, a
sigmoidal relationship between stomatal conductance and vapor pressure deficit (VPD)was found,which can be used as amarker
of plant phenological switch. In order to confirmthat this phenology status is related to desert truffle fructification, this marker has
been successfully correlated to total truffle production. The results of this manuscript suppose a big step forward that will help to
develop management models for the desert truffle crop.
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Citation
Mycorrhiza
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