Review
Plant Sciences
Nobutoshi Yamaguchi
Summary: Certain eukaryotic transcription factors have the ability to reprogram one cell type into another, with pioneer factors being able to engage target sites in closed chromatin. In plants, the TF LEAFY acts as a pioneer factor specifying floral fate and interacts with other factors to regulate floral development.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Holly-Anne Turner, Matthew Humpage, Hans Kerp, Alexander J. Hetherington
Summary: In this study, the fossilized remains of early leafy plants were analyzed to investigate the arrangements of lateral plant organs. It was found that leaves exhibited diverse phyllotaxis, including spirals and spiral whorls. Additionally, the phyllotactic series of leaves and reproductive structures showed similarities, suggesting developmental connections between the organs. These findings provide insights into the debate on leaf origins and demonstrate the ancient occurrence of non-Fibonacci spirals in plants.
Article
Plant Sciences
Yating Zhao, Yanjie Lv, Shuai Zhang, Fangfang Ning, Yibing Cao, Shuhua Liao, Pu Wang, Shoubing Huang
Summary: Ethephon application timing has significant effects on maize yield, lodging rate, and internode length. Delayed ethephon application can increase yield, prevent lodging, and promote photosynthate partitioning within plants, enhancing kernel formation and growth.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Review
Plant Sciences
Margaryta Shtin, Raffaele Dello Ioio, Marta Del Bianco
Summary: The root meristem in plants is a powerful system to study meristem development, with gibberellins emerging as a key regulator in this process.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Horticulture
Giuseppe Ferrara, Carlo Porfido, Roberto Terzano, Ali Sarkhosh, Andrea Mazzeo
Summary: This research found that there are different types of buds in pomegranate plants and the flowers vary among cultivars. These observations suggest that pomegranate is more suitable for warm sub-tropical and tropical areas.
Article
Plant Sciences
Yunming Zhang, Lijun Kan, Shaoqiang Hu, Zhongchi Liu, Chunying Kang
Summary: The LEAFY ortholog of woodland strawberry, which does not regulate APETALA1 at the transcriptional level, shows species-specific roles in flower and leaf development. The plant-specific transcription factor LEAFY (LFY), generally maintained as a single-copy gene in most angiosperm species, plays critical roles in flower development. Here, we identified and validated that mutations in one of the four LFY homologs, FveLFYa, cause homeotic conversion of floral organs and reiterative outgrowth of ectopic flowers.
Article
Multidisciplinary Sciences
Ulla Dolde, Fernando Muzzopappa, Charlotte Delesalle, Julie Neveu, Fabian Erdel, Gregory Vert
Summary: The transcription factor LEAFY (LFY) activates floral homeotic genes for flower development. The E3 ubiquitin ligase UFO interacts with LFY to mark it for degradation. LFY accumulates in biomolecular condensates in the cytoplasm and relocalizes to the nucleus upon perturbation of these condensates, leading to the activation of LFY target genes.
Article
Plant Sciences
Xinjing Ding, Peixi Su, Zijuan Zhou, Rui Shi, Jianping Yang
Summary: The study found that the composition and distribution of bud banks in desertified grasslands are influenced by enclosure, and different levels of desertified grasslands show varying changes in bud density before and after enclosure. The natural recovery ability of grasslands mainly relies on their bud banks.
Article
Agronomy
Zhao Wang, Mujahid Hussain, Guanmin Huang, Jiaming Yin, Yuling Guo, You Mo, Liusheng Duan, Zhaohu Li, Weiming Tan
Summary: The research compared the effectiveness of applying EDAH using UAV and EKS for controlling maize lodging. Results showed that UAV had higher droplet deposition rate, while EKS had higher droplet coverage rate and uniformity. UAV had better effects on controlling maize growth, but similar effects were detected with reduced dosage. Recommendations were provided based on lodging severity and yield concerns.
Article
Plant Sciences
Margaryta Shtin, Laura Polverari, Noemi Svolacchia, Gaia Bertolotti, Simon J. Unterholzner, Riccardo Di Mambro, Paolo Costantino, Raffaele Dello Ioio, Sabrina Sabatini
Summary: During organogenesis, mutual inhibition of gene expression between PLETHORA transcription factors (PLTs) and ARABIDOPSIS RESPONSE REGULATORs (ARRs) is sufficient to separate cell division and cell differentiation during root development.
PLANT AND CELL PHYSIOLOGY
(2023)
Article
Ecology
Jianqiang Qian, Ziyue Guo, Taofeek O. Muraina, Niwu Te, Robert J. Griffin-Nolan, Lin Song, Chong Xu, Qiang Yu, Zhiming Zhang, Wentao Luo
Summary: Belowground bud banks may be sensitive to long-term drought, depending on plant growth forms and community characteristics.
Article
Plant Sciences
Yifei Xie, Zhiying Hou, Miao Shi, Qiaoyan Wang, Zhengfu Yang, Kean-Jin Lim, Zhengjia Wang
Summary: By sampling and paraffin-sectioning female and male flower buds of pecan (Carya illinoensis), we determined the different stages of flower bud differentiation and performed transcriptome sequencing. Data analysis revealed the involvement of FT and SOC1 in flower bud differentiation, with J3 playing a potential role in regulating flower bud differentiation and flowering time in female flower buds. Genes such as NF-YA1 and STM were found to be expressed during male flower bud development, where NF-YA1 may initiate downstream events leading to floral transformation and STM promoted the transformation from leaf buds to flower buds. AP2 possibly played a role in establishing floral meristem characteristics and determining floral organ characteristics. These findings provide a foundation for controlling and regulating female and male flower bud differentiation and improving yield.
Article
Plant Sciences
L. M. Guedes, N. Aguilera, E. Gavilan, J. A. Pendola, N. E. Villagran
Summary: Certain chewing larvae, such as Dasineura sp., can induce gall formation in the vascular cylinder of host plants like Peumus boldus stems. A study was conducted to investigate the anatomical and functional implications of Dasineura sp. establishment on P. boldus stems, due to their medicinal and economic significance. The research aimed to determine if the presence of Dasineura sp. induces cellular and organizational abnormalities in the vascular system of P. boldus stems during gall development, which could contribute to the hydric status of the gall.
Article
Plant Sciences
Erzsebet Kenesi, Zsuzsanna Kolbert, Nikolett Kaszler, Eva Klement, Dalma Menesi, Arpad Molnar, Ildiko Valkai, Gabor Feigl, Gabor Rigo, Agnes Cseplo, Christian Lindermayr, Attila Feher
Summary: Nitric oxide (NO) is a versatile signal molecule that regulates plant development by reversible S-nitrosation. The Arabidopsis ROP2 GTPase is identified as a potential target of NO-mediated regulation, which is required for the root shortening effect of NO. NO inhibits primary root growth by affecting PIN1 protein abundance and auxin accumulation. The study suggests that ROP2 GTPase is directly regulated by NO and discusses the potential mechanisms of NO-mediated ROP2 regulation and ROP2-mediated NO signaling in the root meristem.
Article
Agronomy
Yuping Yan, Chaoqing Ding, Guangheng Zhang, Jiang Hu, Li Zhu, Dali Zeng, Qian Qian, Deyong Ren
Summary: This article reviews the two processes of rice tiller formation and summarizes the effects of genetic factors, endogenous hormones, and exogenous environment on rice tillering. The study finds that multiple molecular mechanisms and signal pathways cooperate in regulating rice tillering and discusses future research objectives and the application of its regulatory mechanism.
Article
Plant Sciences
Gracielle Pereira Pimenta Braganca, Bruno Garcia Ferreira, Rosy Mary dos Santos Isaias
Summary: The study tested three gall morphotypes induced by Cecidomyiidae on leaflets of Inga ingoides and found that different gall types exhibit differences in cytological and metabolic traits, as well as in the accumulation of primary metabolites. The presence of fungi influences the system but does not define exclusive features for specific gall types, with distinct cytological mechanisms identified for each gall type in terms of food resources availability.
Article
Plant Sciences
Bruno G. Ferreira, Gilson R. P. Moreira, Rene G. S. Carneiro, Rosy M. S. Isaias
Summary: This study provides a detailed description of the morphogenetic changes induced by E. minutanus in the lateral buds of S. engleri. The stages of gall development are associated with the development of specific instars of E. minutanus.
AMERICAN JOURNAL OF BOTANY
(2022)
Article
Plant Sciences
Elaine C. Costa, Gracielle P. P. Braganca, Igor A. Arriola, Mariana S. C. Freitas, Rosy M. S. Isaias
Summary: Gall structures and their associated host plants exhibit distinctive structural and histochemical adaptations to survive in the challenging environment of restingas. These adaptations include the presence of thick cuticles, the accumulation of polyphenols and lignified cell walls, and the reorganization of host tissues. Different gall development patterns and host tissue modifications facilitate water accumulation and protect the gall inducers against environmental stresses and enemies.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Plant Sciences
Larissa Quirino da Silva, Cristina Moll Huther, Natalia Fernandes Rodrigues, Julia Ramos de Oliveira, Daniela Marques Correia, Bruno Garcia Ferreira, Vitor Francisco Ferreira, Mariana de Oliveira Pereira, Bruna de Carvalho Assuncao, Gabriela Martins Correa, Filipe Rodrigues Valeriano, Leticia Ponticel Nobrega, Daiane Cecchin, Thelma Machado, Silvio Roberto de Lucena Tavares, Carlos Pereira
Summary: This study assessed the morphophysiological responses of comfrey to short-term severe water restriction and found that water deficit affected the growth and metabolism of comfrey plants. However, adjustments in photosynthetic apparatus and increased dry mass productivity indicated a possible adjustment to severe drought.
Article
Biology
Uiara Costa Rezende, Nina de Castro Jorge, Barbara Dolabela, Rosy Mary dos Santos Isaias, Paul Hanson, Denis Coelho de Oliveira
Summary: Piptocarpha macropoda is a plant species that can develop globoid galls induced by insects. These galls can be attacked by parasitoid insects, which have a positive impact on gall size and nutritive cell layers. However, the parasitoid insects do not affect the size of the host insects, indicating an overstimulation on plant cells and tissues by the parasitized insects.
Article
Plant Sciences
Ravena Malheiros Nogueira, Elaine Cotrim Costa, Juliana Santos Silva, Rosy Mary Santos Isaias
Summary: The Caatinga environment imposes constraints on the phenology and development of host plants and their associated galls. The study on the Mimosa tenuiflora-Lopesia mimosae system reveals that phenological synchronism and structural strategies are key for gall survivorship in Caatinga. Phenological strategies involve synchronizing young galls with leaf sprouting in the rainy season and reproducing during gall senescence in the dry season. Structural strategies include tissue reorganization and compartmentalization to adapt to environmental constraints, and the predominance of periclinal cell elongation determines the gall's bivalve shape.
Article
Plant Sciences
Nina de Castro Jorge, Heraldo Luis Vasconcelos, Mariana de Sousa Costa Freitas, Fernando Henrique Aguiar Vale, Rosy Mary dos Santos Isaias
Summary: Research focuses on how senescent globoid stem galls induced by Neolasioptera sp. on Eremanthus erythropappus can still interact with ants and fungi, forming unique ant-nest galls. The anatomical analyses showed that ant activity in the gall chamber may prevent the closing of the exit channel, allowing the invasion of opportunistic fungal hyphae. This interaction among the plant, fungi, and ants leads to tissue responses and the maintenance of the peculiar ant-nest galls.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Environmental Sciences
Rogerio Victor S. Goncalves, Joao Custodio F. Cardoso, Paulo Eugenio Oliveira, Diego Raymundo, Denis Coelho de Oliveira
Summary: Wetlands play a crucial role in terms of biodiversity, carbon storage, and hydrological processes. Veredas wetlands in Brazil's savanna are protected areas that provide water to main rivers and support endemic species. However, there is a lack of large-scale information about these wetlands. Using remote sensing data, this study explored the factors influencing the occurrence of Veredas wetlands in a specific region of Brazil. The results showed that Veredas were more frequent in the western part of the region, characterized by lower altitude, temperature, and precipitation seasonality, as well as specific soil and land use patterns. This assessment can contribute to the development of conservation strategies and biodiversity studies.
WETLANDS ECOLOGY AND MANAGEMENT
(2022)
Article
Plant Sciences
L. P. Nobrega, B. De Sa-Haiad, B. G. Ferreira
Summary: Intralaminar galls of Meunieriella are the result of ground tissue proliferation in leaves of Avicennia schaueriana, a typical halophytic mangrove. Preferred sites of gall induction were found to be the midribs and secondary veins (SV) at the basal leaf portion, where the galls were largest. The vascular system in galls and adjacent regions was altered to favor water supply in galls, thus increasing their growth.
Article
Plant Sciences
Rayssa Rosa Marquesine de Castro, Pedro Ernandez Ferreira Barbosa, Leonardo Guimaraes Sant'Anna, Caio Marcello da Silva Pereira, Bruno Garcia Ferreira
Summary: Gall-inducing insects stimulate host plants to form distinct structures, like the fusiform galls induced by Clinodiplosis profusa. Infestation rates of these galls are similar in sun and shade plants, but there are differences in cell size and epidermal features between sun and shade galls. In conclusion, gall formation is influenced by galling stimuli, while some developmental processes are influenced by light exposure.
Article
Plant Sciences
Roberta Mendes Isaac Ferreira Vilela, Vinicius Coelho Kuster, Thiago Alves Magalhaes, Vitor Campana Martini, Renato Marques Oliveira, Denis Coelho de Oliveira
Summary: This study evaluated the impact of root-knot nematode infection on the agronomic traits, histology, and cell wall components of parsley, with a focus on giant cell formation. The results showed that Meloidogyne incognita infection affected the development of parsley, reducing root weight, shoot weight, and height. Giant cell formation caused disorganization of the vascular system and had a negative effect on the development of the crop.
Article
Plant Sciences
Vanessa Lino, Atiles Reis, Yve Canaveze, Murilo Sartarelli Farah, Lana da Silva Sylvestre, Bruno Garcia Ferreira
Summary: Ferns have two types of trichomes, hairs and scales, on their stems and leaves. The morphology and histochemistry of glandular scales in Asplenium spp. were investigated using different species under microscopes. The glandular scales had swollen cells with variable number stalks and secreted mucilage, pectins, phenolics, essential oils, and oleoresins. These secretions may provide resistance to desiccation, protection against herbivores and pathogens. Species and habits of the ferns influenced the secretory composition of the scales.
Article
Plant Sciences
Uiara Costa Rezende, Pedro Henrique Pereira Goncalves, Vinicius Coelho Kuster, Rene Goncalves da Silva Carneiro, Denis Coelho de Oliveira
Summary: Galls are a manifestation of the reprogramming of plant cell growth induced by organisms. The morphology and histological features of galls depend on the galling insect taxa and the targeted plant organ. The study found that the galls induced by Palaeomystella oligophaga on Macairea radula are stem-like galls with stem-branch vascular connections, which provide shelters for various arthropods.
Article
Multidisciplinary Sciences
Leticia Ponticel Nobrega, Barbara de Sa Haiad, Bruno Garcia Ferreira
Summary: Leaf-galling Eriophyidae can cause simple or complex alterations in the host plants' organs. Hairy galls on Avicennia schaueriana were found to occur mostly at the apical portion of the leaves and leaf margins. The gall anatomy showed influence on epidermal features and complex changes in abaxial epidermal cells close to feeding sites of the inducer. The gall size was mainly influenced by the number of inducers per gall, rather than the position in the leaves.
Article
Entomology
Uiara Costa Rezende, Joao Custodio Fernandes Cardoso, Pedro Henrique Pereira Goncalves, Denis Coelho de Oliveira
Summary: The study investigated the impact of the micromoth Palaeomystella oligophaga on the formation of galls on Macairea radula and found that it exhibits a bivoltine life cycle influenced by stochastic events like fire.
INTERNATIONAL JOURNAL OF TROPICAL INSECT SCIENCE
(2023)
