Article
Plant Sciences
A. R. Basava Prasad, Anandharaj Arunkumar, S. Vignesh, D. V. Chidanand, N. Baskaran
Summary: The Palmyra tree has cultural, nutritional, and medicinal values. The germinated seed embryo of Palmyra palm is found to be rich in macro and micronutrients and has potential pharmacological significance.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Plant Sciences
Patricia Pereira Fonseca, Hellen Cassia Mazzottini-dos-Santos, Islaine Franciely Pinheiro de Azevedo, Yule Roberta Ferreira Nunes, Leonardo Monteiro Ribeiro
Summary: This study provides a detailed description of the germination and incubation process of Mauritiella armata seeds using histology, histochemistry, and electron microscopy. The seeds of Mauritiella armata exhibit characteristics of recalcitrant seeds and dormancy, which help them adapt to flooded environments. The seeds store abundant reserves of proteins, neutral carbohydrates, and pectins in both the endosperm and embryo.
Article
Plant Sciences
Y. H. Rhie, S. Y. Lee, J. L. Walck, S. N. Hidayati
Summary: Disjunct species in the same genus in temperate forests of East Asia and eastern North America share the same type of seed dormancy, which likely originated from a common ancestor and has been maintained in populations after their separation. Despite quantitative differences in temperature requirements for radicle and shoot emergence, this may be a result of adaptation to the environment.
Article
Biotechnology & Applied Microbiology
Tanushree Chakraborty, K. Viswanatha Chaitanya, Nasim Akhtar
Summary: Cotyledon segments from germinated immature zygotic embryos of Pterocarpus santalinus were used for somatic embryogenesis. Different combinations of growth regulators were tested, and 2,4-D was found to be the most effective for embryogenic frequency. The number of somatic embryos and plantlets obtained varied with the concentrations of BAP and 2,4-D. 2,4-D and NAA, either alone or in combination with BAP, were found to significantly affect the embryonic potential of the cotyledon explant.
PLANT CELL TISSUE AND ORGAN CULTURE
(2023)
Article
Biochemistry & Molecular Biology
Min Luo, Jing Gao, Ran Liu, ShiQi Wang, Guangzhi Wang
Summary: In this study, the developmental changes of F. taipaiensis seeds during dormancy period were observed, and the cause of long-term dormancy of seeds was discussed. It was found that the main reason for dormancy was morphological dormancy, and temperature, testa, and endosperm also influenced seed dormancy. Shortening the development time of the proembryo stage and stratification were suggested to shorten the dormancy time of F. taipaiensis seeds.
PLANT SIGNALING & BEHAVIOR
(2023)
Article
Plant Sciences
Guoyan Wang, Carol C. Baskin, Jerry M. Baskin, Xuejun Yang, Guofang Liu, Xuehua Ye, Zhenying Huang
Summary: The timing of seed germination in alpine plants is regulated by dormancy, with seeds needing to germinate early in the spring to ensure seedlings can grow to a critical size during the short growing season. Factors such as burial time and dormancy cycle affect the germination timing and season, with seeds remaining dormant until optimal conditions for growth are met.
ENVIRONMENTAL AND EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Yuan Song, Xiaoye Gao, Yunjie Wu
Summary: Pinus Koraiensis seeds exhibit physiological dormancy, which can be released by cold stratification. Metabolite profiles of dormant and cold stratified seeds were studied during incubation to understand changes in metabolic pathways responsible for dormancy. Differences in metabolite composition between primary and non-primary physiological dormant seeds were observed, highlighting the importance of disturbed carbohydrate and amino acid metabolism in the mechanism of seed dormancy.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Jerry M. Baskin, Carol C. Baskin
Summary: The literature reviewed the seed germination of mostly economically non-important holoparasitic plants, revealing that these plants have small seeds with tiny embryos and endosperm. The research found that progress in germination of these plants has been limited, partly due to their lack of response to traditional seed dormancy-breaking treatments.
Article
Plant Sciences
Matthew Walker, Marta Perez, Tina Steinbrecher, Frances Gawthrop, Iva Pavlovic, Ondrej Novak, Danuse Tarkowska, Miroslav Strnad, Federica Marone, Kazumi Nakabayashi, Gerhard Leubner-Metzger
Summary: Morphological dormancy (MD) in celery is considered ancestral in seed dormancy evolution, with embryo growth and endosperm breakdown occurring inside imbibed fruits. The critical size for embryo growth and endosperm breakdown associated with ABA degradation constitute a unique germination program.
Article
Anatomy & Morphology
Vijayasankar Raman, Jane Manfron, Ikhlas Ahmed Khan
Summary: This study provides a detailed description of the morpho-anatomical and histochemical characteristics of the leaves, peduncles, stems, and roots of Eryngium yuccifolium Michx., including unique features such as leaf structure, stomatal characteristics, and mesophyll structure. These characteristics can be used for the taxonomy, species identification, and quality control of this plant species.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Plant Sciences
James E. Hourston, Tina Steinbrecher, Jake O. Chandler, Marta Perez, Katrin Dietrich, Veronika Tureckova, Danuse Tarkowska, Miroslav Strnad, Fridtjof Weltmeier, Juliane Meinhard, Uwe Fischer, Karin Fiedler-Wiechers, Michael Ignatz, Gerhard Leubner-Metzger
Summary: The dynamic behavior of seeds in soil seed banks depends on their ability to act as environmental sensors and adjust their germination sensitivity thresholds. A study showed that prolonged incubation of sugar beet fruits at low temperature can induce secondary non-deep dormancy in apparently nondormant crop species. The mechanisms behind this cold-induced secondary dormancy include the accumulation of abscisic acid, reduction in embryo growth potential, and a block in weakening the endosperm.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Plant Sciences
Eugene Kljuykov, Ekaterina A. Zakharova, Tatiana A. Ostroumova, Patricia M. Tilney
Summary: Carpological anatomical characters play a crucial role in the taxonomy of Apiaceae, helping to characterize and identify related taxa, although the same characters can be found in distant groups. Standardized descriptions and a list of characters can aid in understanding the significance of these features in taxonomy.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2021)
Article
Agronomy
Katarina Jovanovic-Radovanov, Dragana Rancic
Summary: A bioassay study found that sugar beet, white mustard, and rapeseed oil were most sensitive to simulated imazethapyr residues based on morphological and anatomical parameters. Wheat was the least sensitive while corn and sunflower were less sensitive. The measured anatomical parameters supported the different sensitivities of the tested plants. An imazethapyr residue level equivalent to ED20 did not cause significant changes in less sensitive plants, suggesting that ED20 could be considered as an acceptable residue level for safe sowing.
Article
Forestry
Zhichao Jia, Beibei Zhao, Sian Liu, Zhaogeng Lu, Bang Chang, Huiru Jiang, Hui Cui, Qingsong He, Weixing Li, Biao Jin, Li Wang
Summary: The seed dormancy of Ginkgo biloba belongs to the ancestral morphophysiological dormancy type, regulated not only by the balance of ABA/GA, but also by other hormones and genes related to embryo development.
Article
Multidisciplinary Sciences
Arunaksharan Narayanankutty, Joice Tom Job, Aswathi Moothakoottil Kuttithodi, Anju Sasidharan, P. B. Benil, Varsha Ramesh, Mohamed Farouk Elsadek, Humaira Rizwana, Maha M. Essam El-Din
Summary: This study evaluated the proximate composition, biological, and anti-diabetic effects of coconut and palmyra palm haustorium. The results showed that palmyra palm haustorium had higher protein, fiber, fat, and polyphenol content, as well as stronger antioxidant and anti-diabetic activity compared to coconut haustorium. These findings suggest that palmyra palm and coconut haustorium could potentially be developed as functional foods.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Ecology
Elder Antonio Sousa Paiva, Denise Maria Trombert Oliveira, Yve Canaveze, Silvia Rodrigues Machado
Summary: The legume tree Schizolobium parahyba from the Brazilian Atlantic Forest produces a sticky exudate on its young aerial organs. This exudate, composed of essential oils and oleoresins, plays a protective role and can capture particles and immobilize insects and other arthropods.
ARTHROPOD-PLANT INTERACTIONS
(2022)
Article
Plant Sciences
Marcelo Pedrosa Gomes, Elisa Monteze Bicalho, Queila Souza Garcia
Summary: Increasing global temperatures may reduce crop production by affecting seed germination in the field. Certain metals, such as Zn, appear to modulate seed thermodormancy, which can be alleviated by Zn treatment through increasing mitochondrial activity and H2O2 production to induce gibberellin synthesis and alleviate dormancy in sorghum seeds.
PHYSIOLOGIA PLANTARUM
(2022)
Article
Plant Sciences
Janaina Guernica Silva, Marcelo Pedrosa Gomes, Eduardo Gusmao Pereira, Elisa Monteze Bicalho, Queila Souza Garcia
Summary: The study found that the growth of P. dubium plants is not affected by the concentrations of manganese present in the tailings when nitrate is used as the sole nitrogen source. However, the application of ammoniacal fertilization, especially when combined with 50 mg Mn L-1, can lead to substrate acidification, reduced total biomass accumulation, and alterations in dry mass partitioning between the shoot and root.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2022)
Article
Environmental Sciences
Humberto Araujo Almeida, Felipe Della Torre, Queila Souza Garcia
Summary: The cultivation of vegetables in the area affected by the deposition of iron ore tailings from the collapse of the Fundao dam in Brazil is viable and does not pose potential harm to food safety.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Materials Science, Multidisciplinary
Wanessa Stefanne de Jesus Silva Bruzinga, Leonardo Monteiro Ribeiro, Yule Roberta Ferreira Nunes, Lucia Pinheiro Santos Pimenta, Mariana Araujo Thibau de Almeida, Martha Grasielle Alves Mendes, Maria Olivia Mercadante-Simoes
Summary: The objective of this study was to characterize the ontogenesis of Protium spruceanum secretory ducts, evaluate the effects of seasonality on that process, and describe the chemical nature of the resin. The study found that the main resin compounds are pentacyclic triterpenoids and identified electron-dense and electron-opaque structures in the secretory epithelial cells. It was also discovered that rising temperatures, rainfall, and increasing day length induce the formation of ducts in the vascular cambium throughout Spring/Summer.
MICROSCOPY AND MICROANALYSIS
(2022)
Article
Plant Sciences
Laudineia de Jesus Matias Ventura, Hellen Cassia Mazzottini-dos-Santos, Maria Olivia Mercadante-Simoes, Paulo Sergio Nascimento Lopes, Leonardo Monteiro Ribeiro
Summary: This study provides a detailed investigation into the developmental stages and structural characteristics of the fruit pericarp of the neotropical palm Butia capitata. The development of the fruit involves three distinct phases, each associated with specific tissue and biochemical changes. The formation of the pericarp involves the development and transformation of multiple tissue layers. This study contributes valuable insights into the fruit development of palms and enhances our understanding of the growth and reproduction processes in palm plants.
Article
Horticulture
Laudineia de Jesus Matias Ventura, Gabriel Sthefano Lourenco Pereira, Hellen Cassia Mazzottini-dos-Santos, Juliana Pinto de Lima, Maria Olivia Mercadante-Simoes, Paulo Sergio Nascimento Lopes, Leonardo Monteiro Ribeiro
Summary: This study investigated the maturation and senescence process of the fruit pulp of the neotropical palm Butia capitata, identifying morphological, physicochemical, histochemical, and ultrastructural characteristics during ripening and post-harvest fruits. It was found that the physiological maturity of the pulp is reached approximately 90 days after anthesis, with ripe fruits composed of carbohydrates, lipids, proteins, and carotenoids. Senescence of the pulp is characterized by a decline in acidity, increases in soluble solids and the SS/TA ratio, reduced firmness, and increased phenolic accumulations.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Talita Raissa Silva Santos, Elisa Monteze Bicalho, Queila Souza Garcia
Summary: This study investigated the thermal thresholds and variations in abscisic acid levels and oxidative metabolism during seed dormancy-breaking and germination in two palm species with differences in desiccation tolerance. The results showed that desiccation-tolerant seeds could germinate in a wider temperature range compared to desiccation-sensitive seeds.
SEED SCIENCE RESEARCH
(2022)
Article
Environmental Sciences
Talita Raissa Silva Santos, Jessyca Adelle Silva Santos, Eduardo Gusmao Pereira, Queila Souza Garcia
Summary: The use of native species and appropriate fertilization techniques, such as inoculation with arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria, can be considered as ecological alternatives to restore areas affected by iron ore tailings. Inoculation resulted in higher foliar nitrogen concentrations, especially in pioneer species, but reduced photosynthetic capacity in secondary species. The antioxidant system was effective in preventing oxidative damage. The evaluated species showed potential for use in tailings revegetation projects.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Plant Sciences
Brenda Martins Cotta Salome, Ariadna Freitas Santos, Leonardo Monteiro Ribeiro, Islaine Franciely Pinheiro de Azevedo, Maria Olivia Mercadante-Simoes
Summary: An in-depth understanding of the development and distribution of laticifer is important for the production of rubber and medicines, as well as for studying plant adaptations. This study characterized and described the ontogenesis of the laticifer system in Calotropis procera, an invasive subshrub species in arid landscapes. The results showed that laticifer differentiates early in the primary structure and originates from precursor cells. The ability of C. procera to grow and produce laticifer throughout the year contributes to its wide distribution in arid environments.
Article
Ecology
Carlos A. Ordonez-Parra, Roberta L. C. Dayrell, Daniel Negreiros, Antonio C. S. Andrade, Leticia G. Andrade, Yasmine Antonini, Leilane C. Barreto, Fernanda de V. Barros, Vanessa da Cruz Carvalho, Blanca Auxiliadora Dugarte Corredor, Antonio Claudio Davide, Alexandre A. Duarte, Selma Dos Santos Feitosa, Alessandra F. Fernandes, G. Wilson Fernandes, Maurilio Assis Figueiredo, Alessandra Fidelis, Leticia Couto Garcia, Queila Souza Garcia, Victor T. Giorni, Vanessa G. N. Gomes, Carollayne Goncalves-Magalhaes, Alessandra R. Kozovits, Jose P. Lemos-Filho, Soizig Le Stradic, Isabel Cristina Machado, Fabiano Rodrigo Maia, Andrea R. Marques, Clesnan Mendes-Rodrigues, Maria Cristina T. B. Messias, Leonor Patricia Cerdeira Morellato, Moemy Gomes de Moraes, Bruno Moreira, Flavia Peres Nunes, Ademir K. M. Oliveira, Yumi Oki, Alba R. P. Rodrigues, Carolina Pietczak, Jose Carlos Pina, Silvio Junio Ramos, Marli A. Ranal, Joao Paulo Ribeiro-Oliveira, Flavio H. Rodrigues, Denise G. Santana, Fernando M. G. Santos, Ana Paula M. S. Senhuk, Rodrigo A. Silveira, Natalia Costa Soares, Olivia Alvina Oliveira Tonetti, Vinicius Augusto da Silveira Vieira, Leticia Cristiane de Sena Viana, Marcilio Zanetti, Heloiza L. Zirondi, Fernando A. O. Silveira
Summary: The Rock n' Seeds database provides functional trait data and germination experiments from Brazilian rock outcrop vegetation, including 16 functional traits for 383 taxa and 48 germination experiments for 281 taxa. This database will be valuable for synthesizing germination data, advancing comparative functional ecology, and guiding seed-based restoration and biodiversity conservation in tropical megadiverse ecosystems.
Article
Horticulture
Wlly Polliana Antunes Dias, Paulo Sergio Nascimento Lopes, Rubia Santos Fonseca, Leonardo Monteiro Ribeiro, Armando Pego Gonsalves, Bruno Alencar Pestana Ribeiro
Summary: This study describes the phenology and reproductive biology of Butia capitata under cultivation and evaluates the storage potential of its pollen. The research finds that in the rainy season, the inflorescence emission of B. capitata is more rapid and crosspollination is predominant. Additionally, the viability of pollen grain can be maintained for 180 days under refrigeration and freezing conditions.
SCIENTIA HORTICULTURAE
(2022)
Article
Plant Sciences
Sarah Barbosa Reis, Ana Caroline Marques Pereira Mello, Andre Rodrigo Rech, Denise Maria Trombert Oliveira
Summary: This study describes the anatomical floral development of three species in the Mauritiinae subtribe using standard light microscopy techniques. It identifies three central moments in the development of pistillate and staminate flowers and suggests that Mauritiinae may have a hermaphrodite ancestor.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Plant Sciences
Patricia Pereira Fonseca, Hellen Cassia Mazzottini-dos-Santos, Islaine Franciely Pinheiro de Azevedo, Yule Roberta Ferreira Nunes, Leonardo Monteiro Ribeiro
Summary: This study provides a detailed description of the germination and incubation process of Mauritiella armata seeds using histology, histochemistry, and electron microscopy. The seeds of Mauritiella armata exhibit characteristics of recalcitrant seeds and dormancy, which help them adapt to flooded environments. The seeds store abundant reserves of proteins, neutral carbohydrates, and pectins in both the endosperm and embryo.
Article
Microbiology
Joao C. M. Dornelas, Marliete C. Costa, Paulo H. F. Carmo, Vivian M. Paixao, Vanessa S. D. Carvalho, Leilane C. Barreto, Queila S. Garcia, Gracielle P. P. Braganca, Rosy M. S. Isaias, Julio C. M. Brito, Maria A. Resende-Stoianoff, Daniel A. Santos
Summary: This study developed a plant model to investigate the interaction between Cryptococcus gattii and plants. The results showed that C. gattii can grow in plants without causing pathological effects. N. benthamiana exhibited higher proliferation of C. gattii, accompanied by an increase in hydrogen peroxide content, antioxidant system activity, and indoleacetic acid production. Colonies of C. gattii recovered from N. benthamiana displayed altered composition and morphology, as well as increased resistance to antifungal drugs. These findings suggest that plants may serve as a potential reservoir and transmission route for C. gattii.
FEMS MICROBIOLOGY ECOLOGY
(2022)