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1. Petiole-Lamina Transition Zone: A Functionally Crucial but Often Overlooked Leaf Trait

Author:
Langer, Max; Speck, Thomas; Speck, Olga
Source:
Plants 2021 v.10 no.4
ISSN:
2223-7747
Subject:
petioles,   etc   ; Liliopsida; geometry;     Show all 3 Subjects
Abstract:
... Although both the petiole and lamina of foliage leaves have been thoroughly studied, the transition zone between them has often been overlooked. We aimed to identify objectively measurable morphological and anatomical criteria for a generally valid definition of the petiole–lamina transition zone by comparing foliage leaves with various body plans (monocotyledons vs. dicotyledons) and spatial arra ...
DOI:
10.3390/plants10040774

2. Begonia shenzhenensis, a new species of Begoniaceae from Guangdong, China

Author:
Tian, Dai-Ke; Chen, Bin; Xiao, Yan; Zheng, Min-Min; Ge, Bin-Jie
Source:
PhytoKeys 2021 v.178 pp. 171-177
ISSN:
1314-2003
Subject:
petioles,   etc   ; Begonia; conservation status; fruits; new species; pedicel; China;     Show all 7 Subjects
Abstract:
... Begonia shenzhenensis D.K.Tian & X.Yun Wang, sp. nov., a new species in Begoniasect.Platycentrum of Begoniaceae from Shenzhen of Guangdong province, China, is described and illustrated. Morphologically, it is primarily similar to B. coelocentroides in the same section but differs by its denser hairs on leaf, petiole, and pedicel, abtuse anther apex, hairy ovary, and narrower adaxial fruit wing. Ba ...
DOI:
10.3897/phytokeys.178.66462

3. Comparison of petiole anatomy in Flemingia and its potential for delimitation of species

Author:
Thacker, Khyati D.; Gavade, Sandip K.; Lekhak, Manoj M.; Gondaliya, Amit D.; Rajput, Kishore S.
Source:
Flora 2021 v.278 pp. 151790
ISSN:
0367-2530
Subject:
petioles,   etc   ; adulterated products; cortex; dyes; flora; histology; insects; traditional medicine;     Show all 8 Subjects
Abstract:
... Socio-economically, different species of Flemingia are used worldwide for various purposes like food, folk medicine to cure various ailments, as a source of non-timber products (e.g., resin, dye, host for lac insect, toothbrush, etc.). Therefore, species level identification is important even in the absence of reproductive structures as it will help to avoid adulteration. In this context, petiole ...
DOI:
10.1016/j.flora.2021.151790

4. Henckelia connata (Gesneriaceae), a new species from eastern Himalayas, China

Author:
Shi, Xi‐Zuo; Yang, Li‐Hua
Source:
Nordic journal of botany 2021 v.39 no.5
ISSN:
0107-055X
Subject:
petioles,   etc   ; Gesneriaceae; corolla; new species; China; Himalayan region;     Show all 6 Subjects
Abstract:
... According to morphological observation and literature consultation, a new species of Henckelia (Gesneriaceae), H. connata X. Z. Shi & Li H. Yang, is described and illustrated. This new species resembles H. dimidiata, but differs in its dilated and connate petiole bases (versus separated), longer peduncles (4–10 cm long versus 0.3–2.2 cm long) and pedicels (1.5–4.0 cm long versus up to 1 cm long), ...
DOI:
10.1111/njb.03154

5. A method of calculating the leafstalk angle of the soybean canopy based on 3D point clouds

Author:
Zhu, Kexin; Ma, Xiaodan; Guan, Haiou; Feng, Jiarui; Zhang, Zhichao; Yu, Song
Source:
International journal of remote sensing 2021 v.42 no.7 pp. 2463-2484
ISSN:
1366-5901
Subject:
petioles,   etc   ; algorithms; canopy; color; cultivars; phenotype; skeleton; soybeans;     Show all 8 Subjects
Abstract:
... Light distribution in the soybean canopy is affected by the leafstalk angle, which is of great significance for breeding high-quality soybean cultivars. In order to calculate the soybean leafstalk angle more accurately, three soybean varieties (Kangxian-9, Kangxian-13 and Fudou-6) were taken as studies objects, first, the colour and depth images of soybean canopy during reproductive growth period ...
DOI:
10.1080/01431161.2020.1854889

6. Assessing morphological diversity in Ethiopian yams (Dioscorea spp.) and its correspondence with folk taxonomy

Author:
Asfaw, Bizuayehu Tesfaye; Worojie, Tsegaye Babege; Mengesha, Wendawek Abebe
Source:
Systematics and biodiversity 2021 v.19 no.5 pp. 471-487
ISSN:
1478-0933
Subject:
petioles,   etc   ; biodiversity; color; landraces; phenotype; principal component analysis; taxonomy; Ethiopia;     Show all 8 Subjects
Abstract:
... This study was conducted with the objective to investigate the diversity of wild and cultivated yams based on morphological characters and to assess its correspondence with folk taxonomy. The local classification system in South-west Ethiopia was studied by recording attributes of each landrace used in the folk taxonomy. Farmers differentiate various named plants based on variations in morphologic ...
DOI:
10.1080/14772000.2021.1890269

7. Morphological and histological characterization of extrafloral nectaries induced by Coelocephalapion galls on Croton antisyphiliticus in the Brazilian Cerrado

Author:
Fernandes, GeraldoWilson; Aguirre-Jaimes, Armando; Contreras-Varela, Ximena; Cocoletzi, Eliezer; de Sousa, Wesley Oliveira; Araujo, Lazaro; Nunes, Bárbara; Angeles, Guillermo; Quesada, Mauricio
Source:
Flora 2021 v.274 pp. 151758
ISSN:
0367-2530
Subject:
petioles,   etc   ; Croton; cerrado; flora; histology; leaf blade; trichomes;     Show all 7 Subjects
Abstract:
... In the Brazilian Cerrado, Coelocephalapion weevils induce galls on the leaves of Croton antisyphiliticus (Euphorbiaceae). Gall induction results in dozens of extrafloral nectaries (EFNs) being produced on the gall surface. This plant has a low number of EFNs at the margin of its healthy leaves. The interaction weevil-plant induces the overproduction of EFNs on the galls. The presence of glands on ...
DOI:
10.1016/j.flora.2020.151758

8. Impatiens bomiensis (Balsaminaceae), a new species from Xizang, China

Author:
Peng, Yang‐Cheng; Peng, Shuai; Yang, Ning; Xu, Zhi‐Gao; Cong, Yi‐Yan
Source:
Nordic journal of botany 2020 v.38 no.8
ISSN:
0107-055X
Subject:
petioles,   etc   ; Impatiens; new species; China;     Show all 4 Subjects
Abstract:
... Impatiens bomiensis, a new species of Balsaminaceae from Bomi County, Xizang, China, is described and illustrated. This new species is similar to Impatiens fragicolor based on morphological characters and molecular data, but differs in the shape of the lower sepal, the dorsal petal and the number of globose glands at petiole base. ...
DOI:
10.1111/njb.02761

9. Use, perception, and local management of Copernicia prunifera (Miller) H. E. Moore in rural communities in the Brazilian Savanna

Author:
de Almeilda, José Afonso Santana; Feitosa, Nágila Alves; Sousa, Leilane de Carvalho e; Silva, Raimundo Nonato Oliveira; de Morais, Rodrigo Ferreira; Monteiro, Júlio Marcelino; de Sousa Júnior, José Ribamar
Source:
Journal of ethnobiology and ethnomedicine 2021 v.17 no.1 pp. 16
ISSN:
1746-4269
Subject:
petioles,   etc   ; Copernicia prunifera; economic factors; income; indigenous species; regression analysis; savannas; straw; traditional medicine;     Show all 9 Subjects
Abstract:
... BACKGROUND: Copernicia prunifera belongs to the Arecaceae family, and its production chain includes a set of economic activities based on the use of the stipe, petiole, fiber, fruits, roots, and leaves from which carnaúba wax is extracted, an economically valuable resource in the region. This study aimed to evaluate the uses, management, and perception of the species by local extractors. METHODS: ...
DOI:
10.1186/s13002-021-00440-5

10. Comparative chemical analysis of six ancient italian sweet cherry (Prunus avium L.) varieties showing antiangiogenic activity

Author:
De Leo, Marinella; Iannuzzi, Anna Maria; Germanò, Maria Paola; D'Angelo, Valeria; Camangi, Fabiano; Sevi, Filippo; Diretto, Gianfranco; De Tommasi, Nunziatina; Braca, Alessandra
Source:
Food chemistry 2021 v.360 pp. 129999
ISSN:
0308-8146
Subject:
petioles,   etc   ; Prunus avium; bioinformatics; chemical analysis; cherries; cyanidin; food chemistry; fruits; glycosides; proanthocyanidins; quinic acid; rutin;     Show all 12 Subjects
Abstract:
... In this study, cherry fruits and petioles from six ancient Italian Prunus avium L. varieties (Ferrovia, Capellina, Morellina, Ciambellana, Napoletana, and Bianca), were compared by chemical and bioinformatic analyses and evaluated for their antiangiogenic activity. The highest levels of total phenols and flavonoids were found in Napoletana petioles, and Morellina and Capellina fruits. HPLC-PDA-MS ...
DOI:
10.1016/j.foodchem.2021.129999

11. Cavitation resistance of peduncle, petiole and stem is correlated with bordered pit dimensions in Magnolia grandiflora

Author:
Zhang, Feng-Ping; Zhang, Jiao-Lin; Brodribb, Timothy J.; Hu, Hong
Source:
Plant diversity 2021 v.43 no.4 pp. 324-330
ISSN:
2468-2659
Subject:
petioles,   etc   ; Magnolia grandiflora; drought; embolism; mortality; peduncle; reproductive success; species diversity; water stress; woody plants; xylem;     Show all 11 Subjects
Abstract:
... Variation in resistance of xylem to embolism among flowers, leaves, and stems strongly influences the survival and reproduction of plants. However, little is known about the vulnerability to xylem embolism under drought stress and their relationships to the anatomical traits of pits among reproductive and vegetative organs. In this study, we investigated the variation in xylem vulnerability to emb ...
DOI:
10.1016/j.pld.2020.11.007

12. Rhododendron kuomeianum (Ericaceae), a new species from northeastern Yunnan (China), based on morphological and genomic data

Author:
Chang, Yu-Hang; Yao, Gang; Neilsen, Jens; Liu, De-Tuan; Zhang, Lu; Ma, Yong-Peng
Source:
Plant diversity 2021 v.43 no.4 pp. 292-298
ISSN:
2468-2659
Subject:
petioles,   etc   ; DNA; Rhododendron; calyx; corolla; genomics; leaf blade; new species; phylogeny; species diversity; China;     Show all 11 Subjects
Abstract:
... Rhododendron kuomeianum Y.H. Chang, J. Nielsen & Y.P. Ma, a new species of Rhododendron (Ericaceae) within subsect. Maddenia in sect. Rhododendron from Yiliang County, NE Yunnan, China, is described and illustrated. The new species is similar to R. valentinianum, but it can be easily distinguished by its sparse scales on the abaxial surface of the leaf blade, fewer flowers per inflorescence and wh ...
DOI:
10.1016/j.pld.2021.04.003

13. Draft genome of Korthalsia laciniosa (Griff.) Mart., a climbing rattan elucidates its phylogenetic position

Author:
Ghosh Dasgupta, Modhumita; Dev, Suma Arun; Muneera Parveen, Abdul Bari; Sarath, Paremmal; Sreekumar, V.B.
Source:
Genomics 2021 v.113 no.4 pp. 2010-2022
ISSN:
0888-7543
Subject:
petioles,   etc   ; Calamus; Eugeissona; biochemical pathways; chloroplast genome; gender; genomics; germplasm conservation; lignin; phylogeny; population structure;     Show all 11 Subjects
Abstract:
... Korthalsia laciniosa (Griff.) Mart. is a climbing rattan used as a source of durable and flexible cane. In the present study, the draft genome of K. laciniosa was sequenced, de novo assembled and annotated. Genome-wide identification of MADS-Box transcription factors revealed loss of Mβ, and Mγ genes belonging to Type I subclass in the rattan lineage. Mining of the genome revealed presence of 13 f ...
DOI:
10.1016/j.ygeno.2021.04.023

14. Influence of storage conditions on oil palm frond juice as a renewable feedstock for bioethanol production

Author:
Syed Abdullah, Sharifah Soplah; Bahrin, Ezyana Kamal; Shirai, Yoshihito; Hassan, Mohd Ali
Source:
Biomass and bioenergy 2021 v.150 pp. 106101
ISSN:
0961-9534
Subject:
petioles,   etc   ; Elaeis guineensis; bioethanol; biomass; ethanol fermentation; ethanol production; feedstocks; glucose; juices; spoilage;     Show all 10 Subjects
Abstract:
... The high fermentable sugars content in oil palm frond (OPF) juice makes it an excellent fermentation feedstock for bioethanol production. The major challenge of using the juice as a feedstock is the rapid degradation of the fermentable sugars during storage. Thus, this study was aimed to investigate the effects of OPF juice concentration and mild temperature storage on its glucose content. The OPF ...
DOI:
10.1016/j.biombioe.2021.106101

15. Leaf colleters in Clusia burchellii Engl.: Structural and ultrastructural features of a little-known gland in Clusiaceae

Author:
Teixeira, Roberta Silva; Rocha, Diego Ismael; Dalvi, Valdnéa Casagrande
Source:
Flora 2021 v.280 pp. 151834
ISSN:
0367-2530
Subject:
petioles,   etc   ; Clusia; electron microscopy; flora; hydrophilicity; leaf development; lipophilicity; meristems; secretion; trichomes;     Show all 10 Subjects
Abstract:
... Clusiaceae species are known globally for the economic importance of their secretory structures; however, reports of colleters in the family are scarce. In the present study, we characterised the leaf colleters in Clusia burchellii by investigating the morphology and anatomy of the glands, the histolocation of the major chemical substances present in the secretory cells and the cellular aspects as ...
DOI:
10.1016/j.flora.2021.151834

16. Phenotypic, genetic and expression profiling of a vindoline-rich genotype of Catharanthus roseus

Author:
Mall, Maneesha; Singh, Pooja; Kumar, Ritesh; Shanker, Karuna; Gupta, Anil K.; Khare, Puja; Shasany, Ajit K.; Khatoon, Sayyada; Sundaresan, Velusamy; Baskaran, K.; Yadav, Seema; Shukla, Ashutosh K.
Source:
South African journal of botany 2021 v.139 pp. 50-57
ISSN:
0254-6299
Subject:
petioles,   etc   ; Catharanthus roseus; biosynthesis; canopy; chlorophyll; elemental composition; genetic profile; phenotype; terpenoids; vinblastine; vincristine;     Show all 11 Subjects
Abstract:
... Catharanthus roseus is known for its scarce and expensive anticancer bisindole alkaloids, vincristine and vinblastine, which are derived from the coupling of monomeric terpenoid indole alkaloids, catharanthine and vindoline. Vindoline represents the bottleneck in bisindole semi-synthesis as unlike catharanthine, its biosynthesis is restricted to the plant leaves, which are the only commercially-vi ...
DOI:
10.1016/j.sajb.2021.02.004

17. Study of tissue culture and in vitro organogenesis of Scutellaria bornmuelleri using benzylaminopurine, lsopentenyl adenine and thidiazuron

Author:
Gharari, Zahra; Bagheri, Khadijeh; Karimkhanlooei, Giti; Sharafi, Ali
Source:
South African journal of botany 2021 v.139 pp. 458-469
ISSN:
0254-6299
Subject:
petioles,   etc   ; Scutellaria; adenine; annuals; benzyladenine; callus formation; chrysin; cytokinins; naphthaleneacetic acid; organogenesis; therapeutics; thidiazuron; tissue culture;     Show all 13 Subjects
Abstract:
... Scutellaria bornmuelleri is an annual plant which belongs to Lamiaceae family. It has several important medicinal compounds such as baicalein, wogonin and chrysin which confirm its potential therapeutic effects. The present study was aimed to evaluate in vitro S. bornmuelleri organogenesis using leaf, petiole and stem explants. Explants were cultured on half-strength MS medium, supplemented with d ...
DOI:
10.1016/j.sajb.2021.03.030

18. New Leaves of Dryopteris intermedia Develop More Slowly When the Petioles of Overwintering Leaves are Broken

Author:
Tessier, Jack T.
Source:
American fern journal 2021 v.111 no.2 pp. 110-116
ISSN:
0002-8444
Subject:
petioles,   etc   ; Dryopteris; carbon; ferns and fern allies; frost; leaf development; overwintering; spring; winter;     Show all 9 Subjects
Abstract:
... Wintergreen ferns keep their leaves for an entire year before replacing them with new leaves in the spring. The overwintering leaves of Dryopteris intermedia provide carbon to the new leaves, and if these old leaves cannot become prostrate before winter via the hinge that develops at the base of the petiole, they are frost damaged and broken, which may affect the development of the new leaves in t ...
DOI:
10.1640/0002-8444-111.2.110

19. First report of parsley basal petiole rot caused by Alternaria petroselini and comparison with parsley leaf blight pathogen in terms of morphology, phylogeny and pathogenicity

Author:
Misawa, Tomoo; Kurose, Daisuke
Source:
Journal of general plant pathology 2021 v.87 no.3 pp. 196-199
ISSN:
1345-2630
Subject:
petioles,   etc   ; Alternaria; Japan; greenhouses; leaf blight; parsley; pathogenicity; pathogens; phylogeny; plant pathology;     Show all 10 Subjects
Abstract:
... In 2011, parsley basal petiole rot was found in a nursery greenhouse in Hokkaido, Japan. One of the isolates obtained from diseased tissues was identified as Alternaria petroselini based on morphological and molecular characteristics, and was indistinguishable from the A. petroselini reference isolate, parsley leaf blight pathogen. Both isolates could cause basal petiole rot and leaf blight in par ...
DOI:
10.1007/s10327-021-00998-8

20. Optimization of callus cultures at Echinacea purpurea L. for the amount of caffeic acid derivatives

Author:
Tanur Erkoyuncu, Münüre; Yorgancilar, Mustafa
Source:
Electronic Journal of Biotechnology 2021 v.51 pp. 17-27
ISSN:
0717-3458
Subject:
petioles,   etc   ; 2,4-D; Echinacea purpurea; biotechnology; caffeic acid; caftaric acid; callus; chlorogenic acid; cotyledons;     Show all 9 Subjects
Abstract:
... In order to produce an effective callus in Echinacea purpurea L.; determination of the explant type and growth regulators that best respond to callus induction and the optimization of the culture conditions to increase the amount of caffeic acid derivatives (CADs) in the obtained callus. CADs contents of callus cultures of E. purpurea were evaluated by establishing an effective callus induction sy ...
DOI:
10.1016/j.ejbt.2021.02.003