Leaf shape variation as a potential biomarker of soil pollution

Pollicelli, Maria de la Paz; Idaszkin, Yanina Lorena; González‐José, Rolando; Márquez, Federico

doi:10.1016/j.ecoenv.2018.08.003

Cited by 19 publications

(8 citation statements)

References 48 publications

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“…Importantly, no prior knowledge about specific shapes resulted in these categories, in contrast to previous approaches that strongly rely on domain expertise, for instance, particular categories of lamina shapes, as commonly found in botanic manuals [3, 4, 6], or individual landmarks located over the leaf border [15]. Importantly, this expert knowledge may not be available for the description of unknown morphological scenarios [17, 24]. Therefore, the proposed approach is relevant for this kind of descriptions.…”

Section: Discussionmentioning

confidence: 99%

Contour analysis for interpretable leaf shape category discovery

Victorino

Gómez

2019

Plant Methods

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Background The categorical description of leaf shapes is of paramount importance in ecology, taxonomy and paleobotanical studies. Classification systems proposed by domain experts support these descriptions. Despite the importance of these visual descriptive systems, classifications based on this expert’s knowledge may be ambiguous or limited when representing shapes in unknown scenarios, as expected for biological exploratory domains. This work proposes a novel strategy to automatically discover the shape categories in a set of unlabeled leaves by only using the leaf-shape information. In particular, we overcome the task of discovering shape categories from different plant species for three different biological settings. Results The proposed method may successfully infer the unknown underlying shape categories with an F-score greater than 92%. Conclusions The approach also provided high levels of visual interpretability, an essential requirement in the description of biological objects. This method may support morphological analysis of biological objects in exploratory domains.

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Section: Discussionmentioning

confidence: 99%

Contour analysis for interpretable leaf shape category discovery

Victorino

Gómez

2019

Plant Methods

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“…Hal ini dapat mempengaruhi anatomi dari daun dan sebagian karakter morfologinya (Stolom et al, 2013). Pollicelli et al (2018) menambahkan bahwa variasi pada daun merupakan biomarker potensial polusi tanah.…”

Section: Pembahasanunclassified

ANALISIS MORFOLOGI JAMBU METE (Anacardium occidentale L.) BERDASARKAN KARAKTER VEGETATIF DI TIGA KABUPATEN SULAWESI TENGGARA

NAWIR

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Larekeng³

et al. 2022

Agroteknos

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Cashew is a promising plant in Southeast Sulawesi due to its reasonably high economic value. This species has been cultivated for years in Southeast Sulawesi, particularly in South Konawe, Konawe, and East Kolaka, with 20 to 30-years-old average plant age. This research aimed to identify morphological variations at the vegetative stage of the cashew in three evaluated Southeast Sulawesi populations (South Konawe, Konawe, and East Kolaka). The descriptive observations were carried out on the leaf apex shape, leaf shape, leaf margin, leaf venation, the color of young and mature leaves, branching pattern, tree habit, ease of peeling bark from the twig, leaf texture, as well as leaf aroma. We indicated the morphological variations in the evaluated cashew. The variations were observed in leaf shape (obovate, oblong, and circular), leaf apex shape (pointed, rounded, and indented), leaf venation (curved up, curved down, and flat), branching pattern (intensive and extensive), tree habit (upright and open, upright and compact, spreading), ease of peeling bark from twigs (difficult and easy), leaf texture (smooth and rough), and aroma (mango-like and guava-like).

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“…Leaf shape is a complex trait with variation at developmental, environmental, and phylogenetic levels (Chitwood et al ., 2014a,b; Chitwood & Sinha, 2016; Lin et al ., 2020). For decades, the molecular and morphometric study of leaf shape and its effects on leaf function and plant fitness (Winn, 1999) have been important for advancing crop breeding (Andres et al ., 2016; Hao et al ., 2022), reducing pesticide use (de la Paz Pollicelli et al ., 2018; Rivero-Lynch et al ., 1997), and ultimately improving human health (Broadley & White, 2010; Key et al ., 2008). Numerous paleoclimatic and common garden studies have shown that the size and shape of leaves often correlates with temperature and soil moisture on both the local and global scales (Dolph & Dilcher, 1980; Gregory-Wodzicki, 2000; Huff et al ., 2003; Feild et al ., 2005; Gleason et al ., 2018; Royer et al ., 2008)).…”

Section: Introductionmentioning

confidence: 99%

Herbarium specimens reveal links betweenCapsella bursa-pastorisleaf shape and climate

Hightower,

Chitwood,

Josephs

2024

Preprint

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Studies into the evolution and development of leaf shape have connected variation in plant form, function, and fitness. For species with consistent leaf margin features, patterns in leaf architecture are related to both biotic and abiotic factors. However, for species with inconsistent leaf margin features, quantifying leaf shape variation and the effects of environmental factors on leaf shape has proven challenging. To investigate leaf shape variation in species with inconsistent shapes, we analyzed approximately 500 digitized Capsella bursa-pastoris specimens collected throughout the continental U.S. over a 100-year period with geometric morphometric modeling and deterministic techniques. We generated a morphospace of C. bursa-pastoris leaf shapes and modeled leaf shape as a function of environment and time. Our results suggest C. bursa-pastoris leaf shape variation is strongly associated with temperature over the C. bursa-pastoris growing season, with lobing decreasing as temperature increases. While we expected to see changes in variation over time, our results show that the level of leaf shape variation is consistent over the 100-year period. Our findings showed that species with inconsistent leaf shape variation can be quantified using geometric morphometric modeling techniques and that temperature is the main environmental factor influencing leaf shape variation.

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Leaf shape variation as a potential biomarker of soil pollution

Cited by 19 publications

References 48 publications

Contour analysis for interpretable leaf shape category discovery

Contour analysis for interpretable leaf shape category discovery

ANALISIS MORFOLOGI JAMBU METE (Anacardium occidentale L.) BERDASARKAN KARAKTER VEGETATIF DI TIGA KABUPATEN SULAWESI TENGGARA

Herbarium specimens reveal links betweenCapsella bursa-pastorisleaf shape and climate

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