Article
Horticulture
Miaoqing Wang, Li Su, Yi Cong, Jingjing Chen, Youling Geng, Chunlu Qian, Qiang Xu, Xuehao Chen, Xiaohua Qi
Summary: Sugars play a crucial role in parthenocarpic fruit formation, with exogenous application of sugars significantly inducing fruit set and growth. The interaction between sugars and plant hormones auxin and cytokinin regulate parthenocarpic fruit formation. Genes involved in auxin and cytokinin signaling pathways were more strongly expressed in sugar-induced parthenocarpic fruits.
SCIENTIA HORTICULTURAE
(2021)
Article
Plant Sciences
Xinsheng Zhang, Chaoyang Feng, Manning Wang, Tianlai Li, Xin Liu, Jing Jiang
Summary: The study found that suppressing SlSWEET7a and SlSWEET14 can increase the sugar content of tomato fruits, as well as result in taller plants and larger fruits. Additionally, there was an observed increase in invertase activity and gene expression of certain SlSWEET members, consistent with the higher availability of sucrose and hexose in the fruits.
HORTICULTURE RESEARCH
(2021)
Article
Plant Sciences
Ioanna Antoniadi, Eduardo Mateo-Bonmati, Marketa Pernisova, Federica Brunoni, Mariana Antoniadi, Mauricio Garcia-Atance Villalonga, Anita Ament, Michal Karady, Colin Turnbull, Karel Dolezal, Ales Pencik, Karin Ljung, Ondrej Novak
Summary: Cytokinin and auxin are plant hormones that coordinate plant development. Their interactions in plant underground growth are well established. Different types of cytokinins have different effects on root growth, while some mutants show root phenotypes opposite to known cytokinin functions and related to auxin levels.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Multidisciplinary Sciences
Xiaojian Xia, Han Dong, Yanling Yin, Xuewei Song, Xiaohua Gu, Kangqi Sang, Jie Zhou, Kai Shi, Yanhong Zhou, Christine H. Foyer, Jingquan Yu
Summary: The study reveals that plant hormones promote bud outgrowth in tomato by directly regulating BRANCHED1, demonstrating that BR signaling integrates multiple pathways controlling shoot branching, making local BR signaling in axillary buds a potential target for shaping plant architecture.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Plant Sciences
Yue Liu, Yichen Liu, Yanjun He, Yanqiu Yan, Xiaolin Yu, Muhammad Ali, Changtian Pan, Gang Lu
Summary: The study shows that SlRR6, a type-A response regulator in the cytokinin signaling pathway, regulates plant height in tomato by interacting with the auxin-responsive gene SlSAUR58. SlRR6 controls plant height by modulating cell division, cell size, and hormone balance.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Alexandre Mboene Noah, Ruben Casanova-Saez, Rolande Eugenie Makondy Ango, Ioanna Antoniadi, Michal Karady, Ondrej Novak, Nicolas Niemenak, Karin Ljung
Summary: The spatial location and timing of plant developmental events are largely regulated by the well balanced effects of auxin and cytokinin phytohormone interplay. Our study provides quantitative characterization of auxin and cytokinin metabolites during early seedling growth in Theobroma cacao, identifying common and distinctive features of hormone metabolism in this process. The findings reveal the dynamics of auxin and cytokinin metabolism in root and hypocotyl development, shedding light on the regulation of growth responses in cacao seedlings.
Article
Plant Sciences
Drishti Mandal, Saptarshi Datta, Giridhar Raveendar, Pranab Kumar Mondal, Ronita Nag Chaudhuri
Summary: RAV1 gene plays an important role in regulating root growth. The expression of RAV1 gene is suppressed in mutant, resulting in impaired cytokinin signaling and altered auxin transport and distribution, ultimately affecting the meristem size of the root.
Review
Biochemistry & Molecular Biology
Lei Wu, Jun-Li Wang, Xiao-Feng Li, Guang-Qin Guo
Summary: The plant root is a dynamic system that responds to external environmental stimuli by adjusting its growth and development. The finely tuned cross-talk between auxin and cytokinin phytohormones plays a key role in regulating this process. Recent studies have revealed the molecular mechanisms behind cytokinin-controlled auxin gradients in root tips, affecting cell division and differentiation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Plant Sciences
Shi-Weng Li
Summary: The critical genes involved in adventitious rooting include auxin signaling-responsive genes, genes associated with auxin transport, and cell wall modulation genes. Additionally, molecular processes in ethylene, cytokinin, and jasmonic acid signaling pathways interact to regulate the generation of adventitious roots. The crosstalk among these processes forms complex networks that regulate adventitious root formation.
FRONTIERS IN PLANT SCIENCE
(2021)
Review
Biochemistry & Molecular Biology
Jasmina Kurepa, Jan A. Smalle
Summary: The hormones auxin and cytokinin play important roles in regulating plant development, with antagonistic effects on each other. The control of shoot/root growth ratio is crucial for the survival of terrestrial plants, and auxin promotes drought stress tolerance and nutrient uptake while cytokinin reduces them. Recent studies have shown that drought stress and nutrient availability can impact the signaling and biosynthesis pathways of auxin and cytokinin, with opposite effects. These findings suggest a unidirectional regulation, with auxin as the primary regulatory component.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Plant Sciences
Olha Yaroshko, Taras Pasternak, Eduardo Larriba, Jose Manuel Perez-Perez
Summary: This study analyzed the effect of different concentrations of zeatin and indole-3-acetic acid on the regeneration of cotyledon explants in tomato cultivars M82 and Micro-Tom. The best hormone combination produced shoot-like structures after 2-3 weeks, and leaf primordia were observed from these structures after about 3-4 weeks. Whole plantlets could be obtained between 4 and 6 weeks by transferring the regenerating micro-stems to a defined growth medium. This method has direct applications for plant transformation, gene editing techniques, and vegetative propagation of elite cultivars.
Article
Plant Sciences
Yumeng Cai, Ling Yin, Wenrui Tu, Zhefang Deng, Jing Yan, Wenjie Dong, Han Gao, Jinxu Xu, Nan Zhang, Jie Wang, Lei Zhu, Qingyong Meng, Yali Zhang
Summary: This study characterized three sucrose transporters from grape species, VvSUC11, VvSUC12, and VvSUC27, and found that overexpression of VvSUC27 can induce seedless fruit development with higher quality and sugar content. The overexpression of VvSUC27 also led to changes in flower morphology and gene expression related to carbohydrate metabolism and hormone signaling pathways.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Plant Sciences
Cintia Pereyra, Rodrigo Parola, Ana Paula Lando, Marianela Rodriguez, Giselle Maria Astrid Martinez-Noel
Summary: Sugars are both energy sources and central molecular signals that regulate growth, development, and response to environmental stresses. Different types and concentrations of sugars have different effects on TOR signaling, with sucrose, glucose, and to a lesser extent fructose inducing root apical meristem reactivation and TOR activity. High concentration of glucose does not induce RAM or kinase activity, while sucrose-induced TOR activity requires auxin signaling.
JOURNAL OF PLANT GROWTH REGULATION
(2023)
Article
Plant Sciences
Willian Batista-Silva, Alice Carvalho de Oliveira, Auxiliadora Oliveira Martins, Joao Antonio Siqueira, Acacio Rodrigues-Salvador, Rebeca P. Omena-Garcia, David Barbosa Medeiros, Lazaro Eustaquio Pereira Peres, Dimas Mendes Ribeiro, Agustin Zsogon, Alisdair R. Fernie, Adriano Nunes-Nesi, Wagner L. Araujo
Summary: Auxin signaling and metabolic changes are highly connected during tomato fruit development. Reduced auxin signaling led to extensive changes in sugar concentration and starch metabolism during tomato fruit ripening.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Biochemistry & Molecular Biology
Xiaobing Jiang, Greice Lubini, Jose Hernandes-Lopes, Kim Rijnsburger, Vera Veltkamp, Ruud A. de Maagd, Gerco C. Angenent, Marian Bemer
Summary: Tomato FUL-like genes FUL2 and MADS-BOX PROTEIN 20 (MBP20) promote the transition from vegetative to reproductive state and repress inflorescence branching by inducing floral meristem maturation. The control of inflorescence branching may be regulated by repression of transcription factors such as TOMATO MADS-box gene 3 (TM3) and APETALA 2b (AP2b). The tomato FUL-like proteins can form heterodimers with various MADS-domain proteins, potentially forming distinct complexes to regulate flowering time and inflorescence architecture.
Article
Plant Sciences
Mariana M. Monteiro, Diego Demarco, Isabel Larridon, Christina J. Prychid, Gerhard Prenner
Summary: By analyzing the spicoid morphology of 48 species of Cyperaceae subfamily Mapanioideae, it was found that the general spicoid morphology is consistent within genera, while character states can vary within genera, supporting molecular phylogenetic relationships. Various features of spicoid morphology, such as the presence of lateral keeled scales, the number of lateral stamens, inner scales, inner stamens, and pistil merosity, were shown to be variable, indicating potential evolutionary changes. The increase in the number of parts seems to be a recurrent process in spicoid evolution, contradicting previous hypotheses of morphological reduction.
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
(2022)
Article
Biotechnology & Applied Microbiology
Bruno Navarro, Paula Elbl, Leandro F. de Oliveira, Amanda R. Piovezani, Andre L. W. dos Santos, Diego T. de Souza, Diego Demarco, Marcos S. Buckeridge, Eny I. S. Floh
Summary: The study investigated the cell-to-cell communication in cell cultures with different embryogenic potential in Araucariaangustifolia. It identified differences in protein abundance related to vesicular transport and cell-to-cell communication processes, with a callose hydrolase showing differential expression between the two cell lines. Immunocytochemical and Transmission Electron Microscopy analyses supported the finding of heightened vesicular activity in the Responsive cell line. Hence, vesicular transport and plasmodesmata regulation features play a crucial role in somatic embryogenic responsiveness in Araucariaangustifolia.
PLANT CELL TISSUE AND ORGAN CULTURE
(2022)
Article
Food Science & Technology
Naissa Previde Bernardo, Aline de Oliveira, Renata Vieira da Mota, Francisco Mickael de Medeiros Camara, Isabela Peregrino, Murillo de Albuquerque Regina, Eduardo Purgatto
Summary: This study evaluated the impact of the lyre and Geneva double-curtain training systems on the volatile composition of sparkling wines and found that different training systems and seasons can lead to variations in the chemical composition of sparkling wines.
Review
Nutrition & Dietetics
Hilton Cesar Rodrigues Magalhaes, Deborah dos Santos Garruti, Eliezer Avila Gandra, Eduardo Purgatto
Summary: The stage of ripeness determines the aromatic profiles of fruits, and the composition of volatile compounds plays a crucial role in fruit quality. Postharvest treatments have a direct impact on the biosynthesis of volatile compounds, with hormonal treatments and other postharvest treatments exhibiting different effects.
CURRENT NUTRITION & FOOD SCIENCE
(2023)
Article
Food Science & Technology
Lais Moro, Renata Vieira da Mota, Eduardo Purgatto, Fulvio Mattivi, Panagiotis Arapitsas
Summary: This study investigated the impact of methyl jasmonate (MeJa) treatment on grape juice production in two Brazilian regions using two Vitis labrusca cultivars. The results showed that MeJa treatment significantly improved the anthocyanic profile of Isabel Precoce juices. Furthermore, the concentration of hydroxycinnamates, especially their glucosides, increased with MeJa treatment. New biomarkers of MeJa treatment were identified, indicating a possible positive effect on the antioxidant properties of grape juice.
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Bruno Silvestre Lira, Maria Jose Oliveira, Lumi Shiose, Mateus Henrique Vicente, Gabriel Ponciano Carvalho Souza, Eny Iochevet Segal Floh, Eduardo Purgatto, Fabio Tebaldi Silveira Nogueira, Luciano Freschi, Magdalena Rossi
Summary: SlBBX28 is a positive regulator of auxin metabolism and signaling, affecting plant growth and flower number in tomato. It promotes auxin production and signaling, ultimately leading to proper hypocotyl elongation, leaf expansion, and inflorescence development, which are crucial traits determining tomato yield.
PLANT MOLECULAR BIOLOGY
(2022)
Article
Plant Sciences
Ximena Chirinos, Shiyu Ying, Maria Aurineide Rodrigues, Elie Maza, Anis Djari, Guojian Hu, Mingchun Liu, Eduardo Purgatto, Sylvie Fournier, Farid Regad, Mondher Bouzayen, Julien Pirrello
Summary: The transition to fruit ripening is a complex process that involves multihormonal control, starting in the locular tissue before extending to the pericarp. This study reveals the transcriptomic reprogramming associated with tomato fruit ripening and highlights the crucial role of auxin in the initiation of ripening.
Article
Plant Sciences
Karla Gasparini, Joaquim Gasparini, Rodrigo Therezan, Mateus Henrique Vicente, Tetsu Sakamoto, Antonio Figueira, Agustin Zsogon, Lazaro E. P. Peres
Summary: Research findings on the genetic changes in trichome development and density in tomato and its wild relatives provide insights for breeding insect-resistant varieties.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Bruno Silvestre Lira, Giovanna Gramegna, Paula Amaral, Juliene dos Reis Moreira, Raquel Tsu Ay Wu, Mateus Henrique Vicente, Fabio Tebaldi Silveira Nogueira, Luciano Freschi, Magdalena Rossi
Summary: Chlorophyll catabolism is the primary source of phytyl diphosphate for tocopherol synthesis. The enzymes VTE5 and VTE6 are crucial for recycling chlorophyll-derived phytol and they are complexed, mitigating their cytotoxic nature. Tocopherol accumulation also occurs in chlorophyll-devoid organs, showing the importance of phytol recycling for tocopherol biosynthesis.
PLANT MOLECULAR BIOLOGY
(2023)
Article
Agronomy
Leandro J. Dallagnol, Tatiane S. de Oliveira, Francine Z. Simmi, Raphael S. Farias, Lazaro E. P. Peres, Sergio F. Pascholati, Luis E. A. Camargo
Summary: Potassium phosphite (KPhi) can reduce the severity of late blight disease in tomato by altering the activity of antioxidant enzymes. Different hormonal pathways play important roles in resistance against the pathogen.
Article
Plant Sciences
Rafael Zuccarelli, Marta Rodriguez-Ruiz, Fernanda O. Silva, Leticia D. L. Gomes, Patricia J. Lopes-Oliveira, Agustin Zsogon, Sonia C. S. Andrade, Diego Demarco, Francisco J. Corpas, Lazaro E. P. Peres, Magdalena Rossi, Luciano Freschi
Summary: Research shows that endogenous nitric oxide (NO) plays a regulatory role in tomato shoot architecture, fruit set, and growth. Inhibiting S-nitrosoglutathione reductase (GSNOR) in tomato promotes shoot side branching and reduces fruit size, negatively impacting fruit yield. It was also found that GSNOR inhibition results in increased protein tyrosine nitration and S-nitrosation, affecting auxin production and signaling in leaf primordia and developing ovaries of fruits.
JOURNAL OF EXPERIMENTAL BOTANY
(2023)
Article
Plant Sciences
Mateus Henrique Vicente, Kyle MacLeod, Feng Zhu, Diego D. Rafael, Antonio Figueira, Alisdair R. Fernie, Fady Mohareb, Zoltan Kevei, Andrew J. Thompson, Agustin Zsogon, Lazaro Eustaquio Pereira Peres
Summary: The study identified a genetic locus on chromosome 7 in tomato that controls both vegetative and reproductive organ size, with alleles from wild species leading to lower cell number and reduced size of leaves, flowers, and fruits in introgression lines. The findings suggest that selection for large fruit during domestication also influences leaf size by altering cell division, potentially allowing for fine-tuning of parameters important for crop adaptation.
Article
Developmental Biology
Leticia F. Ferigolo, Mateus H. Vicente, Joao P. O. Correa, Carlos H. Barrera-Rojas, Eder M. Silva, Geraldo F. F. Silva, Airton Carvalho Jr, Lazaro E. P. Peres, Guilherme B. Ambrosano, Gabriel R. A. Margarido, Robert Sablowski, Fabio T. S. Nogueira
Summary: The interplay between miR156 and GAs in tomato controls flowering time and subsequent stages of reproductive development. High GA responses or overexpression of miR156 lead to enlarged floral meristems, indeterminate ovaries, and fruits with increased number of locules. Low GA responses reduce indeterminacy and locule number. The miR156/SlSBP/GA regulatory module is deployed differently depending on the developmental stage, and this study provides new opportunities for fine-tuning aspects of fruit development in tomato domestication.
Article
Plant Sciences
Danielle Maximo, Marcelo J. P. Ferreira, Diego Demarco
Summary: This study is the first to describe the structure and nectar composition of extrafloral nectaries in the Sapindaceae family. The findings reveal a novel structure and composition for these nectaries, which contribute to the plant's defense mechanisms.
Article
Plant Sciences
Shaun Curtin, Yiping Qi, Lazaro E. P. Peres, Alisdair R. Fernie, Agustin Zsogon
Summary: Growing knowledge about crop domestication and advancements in gene-editing tools create opportunities for the continued domestication of crop wild relatives and lesser-known plant species.