Orchard Management and Incorporation of Biochemical and Molecular Strategies for Improving Drought Tolerance in Fruit Tree Crops

Devin, Sama Rahimi; Prudencio, Ángela S.; Mahdavi, Sayyed Mohammad Ehsan; Rubio, M.; Martínez-García, Pedro J.; Gómez, Pedro Martínez

doi:10.3390/plants12040773

Cited by 16 publications

(7 citation statements)

References 165 publications

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“…The reduction in the photosynthetic rate of yerba mate intercropped with black oat represents competition for water and light factors, as previously observed when yerba mate was grown in the presence of the weed species Bidens pilosa and Ipomoea indivisa (David et al, 2018). The photosynthetic rate is directly related to the availability of water and light incidence on the plants (Devin et al, 2023). The black oat, ryegrass, and black oat + vetch treatments showed similar results for stomatal conductance compared to the other cover plants, marking the occurrence of competition for the water resource.…”

Section: Discussionsupporting

confidence: 51%

Growth and development of yerba mate seedlings associated with different winter cover species

De David,

Toso

et al. 2023

Braz. J. of Sci.

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The lack of knowledge of management in the application of yerba mate is the reason for the present study, given the economic importance of this crop for family farming, the economy and also the culture in the southern region of Brazil. The objective of this work was to evaluate the effects of winter cover species on the morphophysiological characteristics of yerba mate seedlings. The experimental design was laid out in randomized blocks with four replicates. The weed species used were Avena strigosa, Lolium multiflorum, Vicia sativa, Raphanus sativus, Lupinus albus, Axonopus catharinensis, the consortium between A. strigosa and V. sativa, and the control treatment without cover. Physiological (photosynthesis, stomatal conductance, transpiration, internal CO2 concentration, water use efficiency, carboxylative efficiency, and chlorophyll) and morphological (plant height, stem diameter, leaf area, shoot and of root dry matter, in addition to cover dry matter) were evaluated. There was competition between the crop and the cover plants for the factors of light and water, and the control without cultivation did not affect the morphophysiological characteristics of yerba mate. The species A. catharinensis proved to be the best cover plant because it competed less with yerba mate. The growth and development of yerba mate were affected by the presence of A. strigosa.

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Section: Discussionsupporting

confidence: 51%

Growth and development of yerba mate seedlings associated with different winter cover species

De David,

Toso

et al. 2023

Braz. J. of Sci.

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“…Warming global temperatures and changes in precipitation patterns are predicted to limit water availability and increase the severity of drought stress ( 29 – 31 ). The growth of horticultural tree crops is negatively affected by water deficits, which also produce an increased risk of secondary outbreaks of insect pests ( 20 , 32 , 33 ).…”

Section: Discussionmentioning

confidence: 99%

Type and duration of water stress influence host selection and colonization by exotic ambrosia beetles (Coleoptera: Curculionidae)

et al. 2023

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Fungus-farming ambrosia beetles in the tribe Xyleborini tunnel into plants and trees to establish chambers for cultivating their nutritional fungal mutualists and rearing offspring. Some xyleborine ambrosia beetles preferentially infest and perform better in living but weakened trees. Flood stress predisposes horticultural tree crops to infestation, but the impact of drought stress has not been well studied. Our objectives were to compare the effects of flood stress vs. drought stress on host selection and colonization by xyleborine ambrosia beetles and to assess the duration of flooding. Container-grown Cornus florida L. trees were flood stressed using a pot-in-pot system to submerge the roots in water while drought-stressed conditions were imposed by withholding irrigation and precipitation. When experimental trees were held under field conditions for 14 days, 7.5 × more ambrosia beetles landed on stems of the flood-stressed than on the drought-stressed trees. During two additional experiments over 14 and 22 days, ambrosia beetles tunneled into the flood-stressed trees but not the drought-stressed or standard irrigation trees. By simultaneously deploying trees that were flood stressed for varying lengths of time, it was found that more tunnel entrances, and xyleborine adults and offspring were recovered from trees that were flooded for 1–16 days and 7–22 days than from trees that were flooded for 14–29 days and 28–43 days. These results indicate that acute and severe drought stress does not predispose C. florida to infestation, but flood stress and the duration of flooding influence ambrosia beetle host selection and colonization. Understanding the role of host quality on ambrosia beetle preference behavior will assist with predicting the risk of infestation of these opportunistic insects in horticultural tree crops.

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“…The overexpression of drought-responsive genes, achieved via genetic editing via the CRISPR/Cas9 system, holds promising prospects for the cultivation of high-yield, high-quality fruit trees in arid regions, thereby contributing to the global food supply for the populace [171].…”

Section: Improving Stress Tolerance In Fruit Treesmentioning

confidence: 99%

CRISPR/Cas as a Genome-Editing Technique in Fruit Tree Breeding

Martín-Valmaseda,

Devin,

Ortuño-Hernández

et al. 2023

IJMS

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CRISPR (short for “Clustered Regularly Interspaced Short Palindromic Repeats”) is a technology that research scientists use to selectively modify the DNA of living organisms. CRISPR was adapted for use in the laboratory from the naturally occurring genome-editing systems found in bacteria. In this work, we reviewed the methods used to introduce CRISPR/Cas-mediated genome editing into fruit species, as well as the impacts of the application of this technology to activate and knock out target genes in different fruit tree species, including on tree development, yield, fruit quality, and tolerance to biotic and abiotic stresses. The application of this gene-editing technology could allow the development of new generations of fruit crops with improved traits by targeting different genetic segments or even could facilitate the introduction of traits into elite cultivars without changing other traits. However, currently, the scarcity of efficient regeneration and transformation protocols in some species, the fact that many of those procedures are genotype-dependent, and the convenience of segregating the transgenic parts of the CRISPR system represent the main handicaps limiting the potential of genetic editing techniques for fruit trees. Finally, the latest news on the legislation and regulations about the use of plants modified using CRISPR/Cas systems has been also discussed.

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Orchard Management and Incorporation of Biochemical and Molecular Strategies for Improving Drought Tolerance in Fruit Tree Crops

Cited by 16 publications

References 165 publications

Growth and development of yerba mate seedlings associated with different winter cover species

Growth and development of yerba mate seedlings associated with different winter cover species

Type and duration of water stress influence host selection and colonization by exotic ambrosia beetles (Coleoptera: Curculionidae)

CRISPR/Cas as a Genome-Editing Technique in Fruit Tree Breeding

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