Growth and physiological sapling responses of eleven Quercus ilex ecotypes under identical environmental conditions

Navarro-Cerrillo, Rafael M.; Gómez, Francisco J. Ruiz; Cabrera-Puerto, Roberto J.; Sánchez‐Cuesta, Rafael; Palacios-Rodríguez, Guillermo; Quero, José L.

doi:10.1016/j.foreco.2018.01.004

Cited by 18 publications

(17 citation statements)

References 56 publications

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“…The infection of Q. ilex seedlings by P. cinnamomi was not enough, in this case, to kill the plants or to cause permanent damage to their physiological status. The differing degrees of susceptibility among provenances [29] should be considered as one of the causes of this observation, but, doubtless, the pathogen aggravated the consequences of hydric stress, since the results provide no evidence to support the induction of acute water stress by root rot.…”

Section: Discussionmentioning

confidence: 88%

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Differences in the Response to Acute Drought and Phytophthora cinnamomi Rands Infection in Quercus ilex L. Seedlings

Gómez

Pérez‐de‐Luque

Sánchez‐Cuesta

et al. 2018

Forests

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The sustainability of “dehesas” is threatened by the Holm oak decline. It is thought that the effects of root rot on plant physiology vary depending on external stress factors. Plant growth and biomass allocation are useful tools to characterize differences in the response to drought and infection. The study of physiological responses together with growth patterns will clarify how and to what extent root rot is able to damage the plant. A fully factorial experiment, including drought and Phytophtora cinnamomi Rands infection as factors, was carried out with Quercus ilex L. seedlings. Photosynthesis, biomass allocation and root traits were assessed. Photosynthetic variables responded differently to drought and infection over time. The root mass fraction showed a significant reduction due to infection. P. cinnamomi root rot altered the growth patterns. Plants could not recover from the physiological effects of infection only when the root rot coincided with water stress. Without additional stressors, the strategy of our seedlings in the face of root rot was to reduce the biomass increment and reallocate resources. Underlying mechanisms involved in plant-pathogen interactions should be considered in the study of holm oak decline, beyond the consideration of water stress as the primary cause of tree mortality.

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Section: Discussionmentioning

confidence: 88%

“…the mean temperatures over the last 30 years are 24.7 • C (warmest month) and 11.5 • C (coldest month), and the average annual rainfall is 489.3 mm. This parental tree was chosen because it was considered drought tolerant in previous studies [29].…”

Section: Introductionmentioning

confidence: 99%

Differences in the Response to Acute Drought and Phytophthora cinnamomi Rands Infection in Quercus ilex L. Seedlings

Gómez

Pérez‐de‐Luque

Sánchez‐Cuesta

et al. 2018

Forests

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“…For this purpose, a dataset obtained by shotgun proteomics analysis of four Q. ilex populations from different provinces of Andalusia, Southern Spain, under severe drought stress [ 31 ] was analyzed by using a double strategy, combining shotgun protein quantification of proteins and target peptides with post-acquisition analysis of data based on proteotypic peptides. The populations were selected based on previous studies of Q. ilex variability between eastern populations and western ones [ 30 , 31 ], which demonstrated a relationship between tolerance and provenance. However, intrapopulation variability was also observed as corroborated by the study of morpho-physiological and biochemical parameters [ 31 ].…”

Section: Discussionmentioning

confidence: 99%

“…For this purpose, a set of raw data generated in a shotgun experiment performed after 17 and 24 days under drought conditions in Q. ilex seedlings from four different provinces in Andalusia was used. Based on previous studies of inter-population variability of this species [ 12 , 18 , 30 , 31 ], we selected two populations from the southeast (Cadiz, Granada) and two from the northwest (Huelva, Seville) of Andalusia, with the purpose of identifying changes in proteins and derived peptides persistent over time in response to drought in different populations. In this work, various proteins and peptides are proposed as putative markers of drought tolerance in holm oak that transcend not only the tolerant phenotype but also populations and are examined in biological terms.…”

Section: Introductionmentioning

confidence: 99%

Proteomics Data Analysis for the Identification of Proteins and Derived Proteotypic Peptides of Potential Use as Putative Drought Tolerance Markers for Quercus ilex

San-Eufrasio

Bigatton

Guerrero‐Sanchez

et al. 2021

IJMS

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Drought is one of the main causes of mortality in holm oak (Quercus ilex) seedlings used in reforestation programs. Although this species shows high adaptability to the extreme climate conditions prevailing in Southern Spain, its intrinsic genetic variability may play a role in the differential response of some populations and individuals. The aim of this work was to identify proteins and derived proteotypic peptides potentially useful as putative markers for drought tolerance in holm oak by using a targeted post-acquisition proteomics approach. For this purpose, we used a set of proteins identified by shotgun (LC-MSMS) analysis in a drought experiment on Q. ilex seedlings from four different provenances (viz. the Andalusian provinces Granada, Huelva, Cadiz and Seville). A double strategy involving the quantification of proteins and target peptides by shotgun analysis and post-acquisition data analysis based on proteotypic peptides was used. To this end, an initial list of proteotypic peptides from proteins highly represented under drought conditions was compiled that was used in combination with the raw files from the shotgun experiment to quantify the relative abundance of the fragment’s ion peaks with the software Skyline. The most abundant peptides under drought conditions in at least two populations were selected as putative markers of drought tolerance. A total of 30 proteins and 46 derived peptides belonging to the redox, stress-related, synthesis,-folding and degradation, and primary and secondary metabolism functional groups were thus identified. Two proteins (viz., subtilisin and chaperone GrpE protein) were found at increased levels in three populations, which make them especially interesting for validation drought tolerance markers in subsequent experiments.

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“…Crowns play an essential role in the productivity efficiency of individual trees since crowns serve as the location of photosynthesis, respiration and transpiration (Colin & Houllier, 1992;Crecente-Campo et al, 2009;Gao, Bi & Li, 2017). The crown morphology plasticity of a sapling influences both light capture and the use of growth resources and may reflect important implications related to the ability of a sapling to conduct efficient photosynthesis in the understory of a light-limiting environment and to compete with neighbours (Williams, Messier & Kneeshaw, 1999;Nikinmaa et al, 2003;Navarro-Cerrillo et al, 2018). For conifer saplings, crown morphology plasticity has been described by a series of characteristics in terms of the number of branches per whorl, the ratio of leader height to lateral branch growth, and the crown depth or crown ratio (Williams, Messier & Kneeshaw, 1999;Sattler & Lemay, 2001;Nemec, Parish & Goudie, 2002;Saud et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of strip shelterwood-cuts on the crown morphology plasticity of natural regenerated Pinus tabuliformis saplings in northeastern China

Gao

Feng

Yin

et al. 2020

PeerJ

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The study analysed the effect of shelterwood-cut strips on the outermost crown profiles and crown characteristics of naturally regenerated Pinus tabuliformis saplings in northeastern China. A total of 49 regenerated saplings from shelterwood-cut strips and 30 from uncut strips were collected. Nonlinear quantile regression was used to develop the outermost crown profile model for the saplings from the shelterwood-cut and uncut strips. The quantile value suitable for describing the outermost crown profiles of the two types of strips was selected using nonparametric boundary regression. The difference in crown morphologies between the shelterwood-cut strips and uncut strips was compared. The results showed that with the same diameter at breast height, the crown radii of the uncut strip saplings were larger than those of the shelterwood-cut strip saplings within the range of 0.2–1.0 for the relative depth into the crown. The largest crown radius of the saplings from the uncut strips was larger than that of the saplings from the shelterwood-cut strips. The inflection points of the shelterwood-cut strip sapling crowns were larger than those of the uncut strip sapling crowns. The crown volume of the small uncut strip saplings was larger than that of the shelterwood-cut strip saplings, and the difference in crown volume decreased with increasing sapling size. The saplings in the early stage of the uncut strips showed a greater growth rate than those of the shelterwood-cut strips, but their growth rate slowed over the long term according to branch-length annual growth. The present study provides a reference for forest management strategy decision making in promoting natural regeneration.

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Growth and physiological sapling responses of eleven Quercus ilex ecotypes under identical environmental conditions

Cited by 18 publications

References 56 publications

Differences in the Response to Acute Drought and Phytophthora cinnamomi Rands Infection in Quercus ilex L. Seedlings

Differences in the Response to Acute Drought and Phytophthora cinnamomi Rands Infection in Quercus ilex L. Seedlings

Proteomics Data Analysis for the Identification of Proteins and Derived Proteotypic Peptides of Potential Use as Putative Drought Tolerance Markers for Quercus ilex

Effect of strip shelterwood-cuts on the crown morphology plasticity of natural regenerated Pinus tabuliformis saplings in northeastern China

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