Interspecific and intraspecific phenotypic diversity for drought adaptation in bioenergy <i>Arundo</i> species

Faralli, Michele; Williams, Kevin; Corke, Fiona; Li, Mingai; Doonan, John; Varotto, Claudio

doi:10.1111/gcbb.12810

Cited by 3 publications

(2 citation statements)

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“…The negative impact caused by water stress can also be alleviated by holding the growth of leaves and photosynthetic capacity later on through the growing season (Haworth et al, 2019). Overall, the giant reed's phenotypic adaptability to drought can be attributed to its ability to display water use conservation and higher sensitivity to accumulate biomass (Faralli et al, 2021).…”

Section: Tolerance and Genetic Adaptability Of Arundo Donaxmentioning

confidence: 99%

Arundo donax L. in Egypt: a potentially valuable economic plant

Kassem,

Ali,

Saad Zaghloul

2024

Advances in Basic and Applied Sciences

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Section: Tolerance and Genetic Adaptability Of Arundo Donaxmentioning

confidence: 99%

Arundo donax L. in Egypt: a potentially valuable economic plant

Kassem,

Ali,

Saad Zaghloul

2024

Advances in Basic and Applied Sciences

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“…Miscanthus is also a typical C4 species, native to East Asia, found throughout a wide climatic range [10] and characterized by its rapid growth with low fertilizer requirements and high tolerance to drought, salinity and cold conditions [6]. A. donax has a C3 photosynthetic metabolism unlike the two previous species, but having as high photosynthetic rates as many C4 species [11]. This species is native to Asia and has been successfully established in the Mediterranean region and subtropical wetlands [12,13].…”

Section: Introductionmentioning

confidence: 99%

Drought Impact on the Morpho-Physiological Parameters of Perennial Rhizomatous Grasses in the Mediterranean Environment

et al. 2023

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The selection of non-food crops for bioenergy production in limiting environments is a priority for energy security and climate change mitigation. Therefore, more studies are needed on the interactions between species and environmental factors in specific sites which allows their selection for biomass production. The objective of this work is to study the impact of drought on the morpho-physiological parameters of perennial rhizomatous grasses Panicum virgatum L., Miscanthus × giganteus, and Arundo donax L. in the Mediterranean environment. Plants were grown on field and trials were carried out under support-irrigation and rainfed conditions during two consecutive years. Morpho-physiological parameters were measured in May, June and August, and dry biomass at the end of the experiment. Under rainfed conditions, A. donax presented the highest photosynthesis rate (25, 15 and 10 CO2 m−2 s−1), relative water content (85–90%), and dry biomass (~4500 g plant−1) compared with P. virgatum (20, 5 and 5 CO2 m−2 s−1, 65–85% RWC and ~1400 g plant−1) and Miscanthus (18, 4 and 0 CO2 m−2 s−1, 80–10% RWC and ~260 g plant−1). It is concluded that A. donax would be the best perennial rhizomatous grass to be used as bioenergy crop under Mediterranean conditions.

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Natural variation in stomatal dynamics drives divergence in heat stress tolerance and contributes to seasonal intrinsic water-use efficiency in Vitis vinifera (subsp. sativa and sylvestris)

Faralli

Bontempo

Bianchedi

et al. 2021

Journal of Experimental Botany

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Stomata control CO2 uptake for photosynthesis and water loss through transpiration, thus playing a key role in leaf thermoregulation, water-use efficiency (iWUE) and plant productivity. In this work, we investigated the relationship between several leaf traits and hypothesized that stomatal behavior to fast (i.e. minutes) environmental changes co-determines along with steady-state traits the physiological response of grapevine to the surrounding fluctuating environment over the growing season. No relationship between iWUE, heat stress (HS) tolerance and stomatal traits was observed in field grown grapevine, suggesting that other physiological mechanisms are involved in determining leaf evaporative cooling capacity and the seasonal ratio of CO2 uptake (A) to stomatal conductance (gs). Indeed, cultivars that in the field had an unexpected combination of high iWUE but low sensitivity to thermal stress, displayed a quick stomatal closure to light, but a sluggish closure to increased vapor pressure deficit (VPD) levels. This strategy aiming both at conserving water under a high-to-low light transition and in prioritizing evaporative cooling under a low-to-high VPD transition, was mainly observed in Regina and Syrah. Moreover, cultivars with different known responses to soil moisture deficit or high air VPD (isohydric vs anisohydric) had opposite behavior under fluctuating environments, with the isohydric cultivar showing slow stomatal closure to reduced light intensity but quick temporal responses to VPD manipulation. We propose that stomatal behavior to fast environmental fluctuations can play a critical role on leaf thermoregulation and water conservation under natural field conditions in grapevine.

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Interspecific and intraspecific phenotypic diversity for drought adaptation in bioenergy Arundo species

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 3 publications

References 64 publications

Arundo donax L. in Egypt: a potentially valuable economic plant

Arundo donax L. in Egypt: a potentially valuable economic plant

Drought Impact on the Morpho-Physiological Parameters of Perennial Rhizomatous Grasses in the Mediterranean Environment

Natural variation in stomatal dynamics drives divergence in heat stress tolerance and contributes to seasonal intrinsic water-use efficiency in Vitis vinifera (subsp. sativa and sylvestris)

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