Article
Entomology
Ning Di, Zi Shi, James D. Harwood, Yafeng Chen, Jiarong Wang, Zhengyang Zhu, Su Wang, Nicolas Desneux, Jiuran Zhao, Wen Ren
Summary: This study investigates the mechanisms of resistance to spider mites in maize and finds that the resistant variety, Jingke968, has significantly lower mite populations and reproduction compared to the susceptible variety, Xianyu335. Stomatal dimensions are closely correlated with the resistance level. Field observations also demonstrate a higher resistance level to spider mites in Jingke968 and Jing92 compared to the most sensitive line, PH6WC.
JOURNAL OF PEST SCIENCE
(2023)
Article
Agronomy
Hajar Pakyari, G. V. P. Reddy
Summary: The wavelength of light can influence the reproduction and development of S. longicornis. White light conditions have a positive impact on the development time and reproductive performance of the thrips.
Article
Multidisciplinary Sciences
Shahzadi Mahpara, Lariab Fatima, Ammara Gul, Rehmat Ullah, Muhammad Muneer, Muhammad Ashraf Bhatti, Javed Iqbal, Affan Ahmed, Tehseen Fatima, Muhammad Usman Ijaz, Sulaiman Ali Alharbi, Wafa A. Alrasheed, Muhammad Ihsan Ullah, Abdul Rauf, Muhammad Waqar Nasir, Hesham Ali El Enshasy
Summary: Ethyl methane sulfonate (EMS) was found to be more efficient than sodium azide (SA) in inducing mutations, and more variants were observed in the EMS-treated populations. It is recommended to use these isolated mutants as a rich source of genetic diversity for breeding new varieties.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Biology
Saad Farouk, Ahmad B. Almutairi, Yousef O. Alharbi, Waleed I. Al-Bassam
Summary: The study shows that using lavender and jasmine essential oils, as well as mustard fixed oil, can enhance plants' resistance to two-spotted spider mites and improve the growth and yield of eggplants. Synthetic acaricides are commonly used to control these pests, leading to environmental pollution. Therefore, utilizing novel substances to repel or prevent two-spotted spider mites establishes a sustainable and eco-friendly approach to reduce the use of agrochemicals.
Article
Virology
Xue Gao, Zhi-qiang Jia, Hong-zheng Tao, Ye Xu, Yong-zhong Li, Ya-ting Liu
Summary: This study analyzed the characteristics and distribution of virus-derived small interfering RNAs (vsiRNAs) produced by Capsicum annuum infected with Tomato spotted wilt orthotospovirus and Hippeastrum chlorotic ringspot orthotospovirus using deep sequencing. The results showed that most of the vsiRNAs were 19-24 nucleotides in length and mapped to the S segment of the viral genome. The distribution of vsiRNAs differed between the two viruses, and the expression levels of related genes were also affected.
Article
Entomology
Marwa E. Barghout, Samar S. Ibrahim, El-Sayed M. El-Saiedy
Summary: Four predatory mites and commercial pesticides were used to control pests on pepper plants. The results showed that A. swirskii was the most effective in controlling B. tabaci, T. tabaci, and T. urticae.
PERSIAN JOURNAL OF ACAROLOGY
(2022)
Article
Plant Sciences
Dorota Kawa, Tamera Taylor, Benjamin Thiombiano, Zayan Musa, Hannah E. Vahldick, Aimee Walmsley, Alexander Bucksch, Harro Bouwmeester, Siobhan M. Brady
Summary: The sorghum varieties Shanqui Red and SRN39 exhibit different levels of susceptibility to the parasitic weed Striga hermonthica, attributed to their root exudates' varying strigolactone composition. These differences in strigolactone profiles not only affect Striga germination efficiency but also lead to alterations in growth and development in the plants.
JOURNAL OF EXPERIMENTAL BOTANY
(2021)
Article
Plant Sciences
Eva Nouri, Rohini Surve, Laure Bapaume, Michael Stumpe, Min Chen, Yunmeng Zhang, Carolien Ruyter-Spira, Harro Bouwmeester, Gaeetan Glauser, Sebastien Bruisson, Didier Reinhardt
Summary: This study explores the impact of phosphate (P-i) on the symbiotic relationship between plants and fungi, revealing that P-i may interfere with AM symbiosis via the phytohormone gibberellic acid (GA). Using Solanaceous model plants, it was found that GA-defective plants significantly affected the colonization of AM fungi, and exogenous phosphate had less inhibitory effect on these plants. The findings provide insights into potential targets for crop breeding to reduce P suppression of AM symbiosis and reconcile the benefits of P-i fertilization with AM symbiosis.
PLANT AND CELL PHYSIOLOGY
(2021)
Article
Microbiology
Bora Kim, Johan A. Westerhuis, Age K. Smilde, Kristyna Flokova, Afnan K. A. Suleiman, Eiko E. Kuramae, Harro J. Bouwmeester, Anouk Zancarini
Summary: This study provides new insight into the role of strigolactones in the interaction between plants and microbes in the rhizosphere. Strigolactones promote a mutualistic association between plants and arbuscular mycorrhizal fungi, helping plants with nutrient uptake. The signaling function of strigolactones may also extend to other microbial partners, but their effect on the global root and rhizosphere microbiome is still poorly understood.
FEMS MICROBIOLOGY ECOLOGY
(2022)
Article
Plant Sciences
Jun He, Francel Verstappen, Ao Jiao, Marcel Dicke, Harro J. Bouwmeester, Iris F. Kappers
Summary: Our study revealed the important roles of the TPS gene family in cucumber in response to different herbivores, with multiple CsTPS genes showing upregulation in leaves upon herbivory. The products generated by the expressed proteins matched the terpenoids recorded in the volatile blend released by herbivore-damaged leaves, providing detailed insights into the dynamics and fine-tuning of the emission of herbivore-induced plant volatiles in cucumber.
Article
Plant Sciences
Yanting Wang, Janani Durairaj, Hernando G. Suarez Duran, Robin van Velzen, Kristyna Flokova, Che-Yang Liao, Aleksandra Chojnacka, Stuart MacFarlane, M. Eric Schranz, Marnix H. Medema, Aalt D. J. van Dijk, Lemeng Dong, Harro J. Bouwmeester
Summary: By using root RNA-seq data and co-expression analysis, candidate genes involved in the biosynthesis of SLs in tomato, including several cytochrome P450 genes, were discovered. Experimental results demonstrated the catalytic activity of CYP712G1 in oxidizing orobanchol to form DDH isomers, which can be further converted to solanacol, a major component of tomato root exudate.
Article
Plant Sciences
Giovanni Melandri, Eliana Monteverde, David Riewe, Hamada AbdElgawad, Susan R. McCouch, Harro Bouwmeester
Summary: Biochemical traits outperform genetic markers in predicting yield performance in rice under drought stress. Multivariable models based on metabolic/biochemical data show higher predictability than genomic-based models for grain yield and stress-induced yield loss. Enzyme activities and metabolite values in the models integrate the effect of physiological differences on yield and provide important predictors for rice yield stability under drought.
Article
Multidisciplinary Sciences
Kiyoshi Mashiguchi, Yoshiya Seto, Yuta Onozuka, Sarina Suzuki, Kiyoko Takemoto, Yanting Wang, Lemeng Dong, Kei Asami, Ryota Noda, Takaya Kisugi, Naoki Kitaoka, Kohki Akiyama, Harro Bouwmeester, Shinjiro Yamaguchi
Summary: Strigolactones are plant hormones that regulate shoot branching and other developmental processes. In Arabidopsis, a methyl esterified derivative of the biosynthetic precursor carlactonoic acid (CLA), called methyl carlactonoate (MeCLA), acts as an endogenous SL-like molecule. It has been found that an enzyme called CLAMT efficiently catalyzes the methylation of CLA to produce MeCLA. This methylation step is critical for converting an inactive precursor to a bioactive compound in the shoot branching inhibition pathway.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biochemistry & Molecular Biology
Jiahn-Chou Guan, Changsheng Li, Sherry Flint-Garcia, Masaharu Suzuki, Shan Wu, Jonathan W. Saunders, Lemeng Dong, Harro J. Bouwmeester, Donald R. McCarty, Karen E. Koch
Summary: Strigolactones not only affect the traits of Tga1 in corn, but also play a crucial role in the traits and development of rice. Through genetic and molecular evidence, it has been found that SLs regulate the availability of TGA1 and play a role in increasing kernel size, providing physical support, and exposing them on the grain-bearing surface.
Article
Plant Sciences
Umidjon Shapulatov, Martijn van Zanten, Mark van Hoogdalem, Mara Meisenburg, Alexander van Hall, Iris Kappers, Carlo Fasano, Paolo Facella, Chi Cheng Loh, Giorgio Perrella, Alexander van der Krol
Summary: Thermomorphogenesis is characterized by enhanced hypocotyl elongation through the induction of auxin biosynthesis genes like YUCCA8 by transcription factors such as PIF4. HDA9 is recruited to the YUCCA8 locus under warmth, mediated by its interaction with PIF4 and histone deacetylase activity. The Mediator complex, particularly MED25, plays a role in thermomorphogenesis by interacting with both PIF4 and HDA9 and destabilizing HDA9 protein. These findings provide insights into the recruitment mechanism of histone deacetylase activity to PIF4 target sites.
Article
Multidisciplinary Sciences
C. Li, L. Dong, J. Durairaj, J. -C. Guan, M. Yoshimura, P. Quinodoz, R. Horber, K. Gaus, J. Li, Y. B. Setotaw, J. Qi, H. De Groote, Y. Wang, B. Thiombiano, K. Flokova, A. Walmsley, T. V. Charnikhova, A. Chojnacka, S. Correia de Lemos, Y. Ding, D. Skibbe, K. Hermann, C. Screpanti, A. De Mesmaeker, E. A. Schmelz, A. Menkir, M. Medema, A. D. J. Van Dijk, J. Wu, K. E. Koch, H. J. Bouwmeester
Summary: Maize, a major crop in Africa, is threatened by the parasitic witchweed Striga. Researchers have discovered two new strigolactones, zealactol and zealactonoic acid, which have weaker germination-inducing effects on Striga compared to the major strigolactone, zealactone. They also identified a key enzyme, ZmCYP706C37, in the maize strigolactone biosynthetic pathway, and reducing its activity, along with two others, can change strigolactone composition and reduce Striga germination and infection.
Article
Multidisciplinary Sciences
Gilles Vismans, Sietske van Bentum, Jelle Spooren, Yang Song, Pim Goossens, Josep Valls, Basten L. Snoek, Benjamin Thiombiano, Mario Schilder, Lemeng Dong, Harro J. Bouwmeester, Pierre Petriacq, Corne M. J. Pieterse, Peter A. H. M. Bakker, Roeland L. Berendsen
Summary: Plants deposit carbon in the rhizosphere to create a favorable environment for microbes. Previous studies have shown that foliar infection can alter the composition of the rhizosphere microbiome. This study demonstrates that the Hpa-induced shift in the root microbiome can protect plants from downy mildew infection by activating the plant's systemic resistance. Coumarins play a prominent role in this process.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Miguel Ezquerro, Changsheng Li, Julia Perez-Perez, Esteban Burbano-Erazo, M. Victoria Barja, Yanting Wang, Lemeng Dong, Purificacion Lison, M. Pilar Lopez-Gresa, Harro J. Bouwmeester, Manuel Rodriguez-Concepcion
Summary: This study investigated the function of SlG1, a gene involved in carotenoid and strigolactone (SL) synthesis. The results showed that slg1 lines displayed a wild-type phenotype under normal growth conditions. However, under bacterial infection, slg1 leaves produced lower levels of defensive diterpenoids. In roots, SlG1 co-expressed with PSY3 and was involved in SL production, but did not affect shoot branching phenotype.
Article
Biochemistry & Molecular Biology
Yuanyuan Zhang, Arman B. Kashkooli, Suze Blom, Tao Zhao, Harro J. Bouwmeester, Iris F. Kappers
Summary: In response to herbivory, Capsicum annuum leaves adapt their specialized metabolome, in which terpenoids play an important role, and gene expression is also affected by herbivory.
PLANT MOLECULAR BIOLOGY
(2023)
Article
Plant Sciences
Monica Borghi, Leonardo Perez de Souza, Takayuki Tohge, Jianing Mi, Giovanni Melandri, Sebastian Proost, Marina C. M. Martins, Salim Al-Babili, Harro J. Bouwmeester, Alisdair R. Fernie
Summary: Anthesis is characterized by intense metabolic changes, including high-energy-level metabolism and transport of carbohydrates and amino acids. These changes play a crucial role in flower opening and may promote pollination in crops.
