Ecophysiology of Nitrogen in Symbiotic Relationships of Plants and Microorganisms

Matos, Isabelle Faria; Silva, Bianca do Carmo; Souza, Sávio Bastos de; Bertolazi, Amanda Azevedo; Pedroni, Narjara Laranja de Souza; Intorne, Aline Chaves; Ribeiro, Daniel Pessanha; Ramos, Alessandro Coutinho

doi:10.1007/978-3-030-71206-8_2

Cited by 2 publications

(3 citation statements)

References 102 publications

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“…It is also conceivable that increased damages on evergreen hosts may be related to co-occurrence with Fabaceae. Fabaceae have been attributed to be beneficial for ecosystem productivity due to their ability to fixate atmospheric nitrogen through symbiosis with microorganisms in the rhizosphere ( Matos et al, 2021 ). Currano et al (2016) hypothesized a possibly positive buffer effect on leaf nutritional quality by Fabaceae in ecosystems under elevated p CO 2 conditions, which are expected to reduce leaf nutritional quality ( Stiling & Cornelissen, 2007 ).…”

Section: Discussionmentioning

confidence: 99%

“… Currano et al (2016) hypothesized a possibly positive buffer effect on leaf nutritional quality by Fabaceae in ecosystems under elevated p CO 2 conditions, which are expected to reduce leaf nutritional quality ( Stiling & Cornelissen, 2007 ). Legumes in the forest ecosystem may have facilitated higher leaf nitrogen concentration across fossil-species through the enrichment of nitrogen in the soil and thus positively affect the leaf nutritional quality of other plants, even evergreens ( Matos et al, 2021 ). In addition, the presence of Fabaceae leaves in the vegetation may also have affected insect behavior.…”

Section: Discussionmentioning

confidence: 99%

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An integrated leaf trait analysis of two Paleogene leaf floras

Müller

Toumoulin

Böttcher

et al. 2023

PeerJ

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Objectives This study presents the Integrated Leaf Trait Analysis (ILTA), a workflow for the combined application of methodologies in leaf trait and insect herbivory analyses on fossil dicot leaf assemblages. The objectives were (1) to record the leaf morphological variability, (2) to describe the herbivory pattern on fossil leaves, (3) to explore relations between leaf morphological trait combination types (TCTs), quantitative leaf traits, and other plant characteristics (e.g., phenology), and (4) to explore relations of leaf traits and insect herbivory. Material and Methods The leaves of the early Oligocene floras Seifhennersdorf (Saxony, Germany) and Suletice-Berand (Ústí nad Labem Region, Czech Republic) were analyzed. The TCT approach was used to record the leaf morphological patterns. Metrics based on damage types on leaves were used to describe the kind and extent of insect herbivory. The leaf assemblages were characterized quantitatively (e.g., leaf area and leaf mass per area (LMA)) based on subsamples of 400 leaves per site. Multivariate analyses were performed to explore trait variations. Results In Seifhennersdorf, toothed leaves of TCT F from deciduous fossil-species are most frequent. The flora of Suletice-Berand is dominated by evergreen fossil-species, which is reflected by the occurrence of toothed and untoothed leaves with closed secondary venation types (TCTs A or E). Significant differences are observed for mean leaf area and LMA, with larger leaves tending to lower LMA in Seifhennersdorf and smaller leaves tending to higher LMA in Suletice-Berand. The frequency and richness of damage types are significantly higher in Suletice-Berand than in Seifhennersdorf. In Seifhennersdorf, the evidence of damage types is highest on deciduous fossil-species, whereas it is highest on evergreen fossil-species in Suletice-Berand. Overall, insect herbivory tends to be more frequently to occur on toothed leaves (TCTs E, F, and P) that are of low LMA. The frequency, richness, and occurrence of damage types vary among fossil-species with similar phenology and TCT. In general, they are highest on leaves of abundant fossil-species. Discussion TCTs reflect the diversity and abundance of leaf architectural types of fossil floras. Differences in TCT proportions and quantitative leaf traits may be consistent with local variations in the proportion of broad-leaved deciduous and evergreen elements in the ecotonal vegetation of the early Oligocene. A correlation between leaf size, LMA, and fossil-species indicates that trait variations are partly dependent on the taxonomic composition. Leaf morphology or TCTs itself cannot explain the difference in insect herbivory on leaves. It is a more complex relationship where leaf morphology, LMA, phenology, and taxonomic affiliation are crucial.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

An integrated leaf trait analysis of two Paleogene leaf floras

Müller

Toumoulin

Böttcher

et al. 2023

PeerJ

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“…The bacterial nitrogenase complex reduces atmospheric N 2 to ammonia (NH 3 ), a form that is easily absorbed by plants (Rilling et al, 2018). Therefore, recruitment of nitrogen-fixing bacteria in symbiotic or nonsymbiotic relationships helps host plants obtain nitrogen directly from the atmosphere to meet their nutritional needs (Matos et al, 2021). Some free-living bacterial genera (such as nitrogenfixing genera) can colonize different plant niches, such as the rhizosphere and endosphere, thereby promoting the nitrogen requirements of non-legumes (Bhattacharyya and Jha, 2012).…”

Section: Introductionmentioning

confidence: 99%

Effects of Sugarcane and Soybean Intercropping on the Nitrogen-Fixing Bacterial Community in the Rhizosphere

Liu

et al. 2021

Front. Microbiol.

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Intercropping between sugarcane and soybean is widely used to increase crop yield and promote the sustainable development of the sugarcane industry. However, our understanding of the soil microenvironment in intercropping systems, especially the effect of crop varieties on rhizosphere soil bacterial communities, remains poor. We selected two excellent sugarcane cultivars, Zhongzhe1 (ZZ1) and Zhongzhe9 (ZZ9), from Guangxi and the local soybean variety GUIZAO2 from Guangxi for field interplanting experiments. These two cultivars of sugarcane have good drought resistance. Rhizosphere soil samples were collected from the two intercropping systems to measure physicochemical properties and soil enzyme activities and to extract total soil DNA for high-throughput sequencing. We found that the diversity of the rhizosphere bacterial community was significantly different between the two intercropping systems. Compared with ZZ1, the ZZ9 intercropping system enriched the nitrogen-fixing bacteria, increasing the available nitrogen content by 18% compared with that with ZZ1. In addition, ZZ9 intercropping with soybean formed a more compact rhizosphere environment than ZZ1, thus providing favorable conditions for sugarcane growth. These results provide guidance for the sugarcane industry, especially for the management of sugarcane and soybean intercropping in Guangxi, China.

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Ecophysiology of Nitrogen in Symbiotic Relationships of Plants and Microorganisms

Cited by 2 publications

References 102 publications

An integrated leaf trait analysis of two Paleogene leaf floras

An integrated leaf trait analysis of two Paleogene leaf floras

Effects of Sugarcane and Soybean Intercropping on the Nitrogen-Fixing Bacterial Community in the Rhizosphere

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