Results 11 to 20 of about 512 (156)

The Detection of Homopterous Phytoplasma Vectors Infecting Some Ornamental and Medicinal Plants In Egypt [PDF]

Journal of Plant Protection and Pathology, 2021
This work is the first record of a phytoplasma associated with homopterous phytoplasma vectors infecting some ornamental and medicinal plants in Egypt. The field study was conducted during two successive seasons 2009 and 2011 in four different locations ...
A. El-Sayed, Elham Khalifa
doaj   +1 more source

Candidatus phytoplasma malaysianum (16SrXXXII) associated with Elaeocarpus sylvestris decline in South Korea

Forest Science and Technology, 2022
Phytoplasma has been newly detected in Elaeocarpus sylvestris, a tree species that grows on the island of Jeju, South Korea. Various symptoms of infection of E.
Geon-Woo Lee, Tae-Wan Han, Sun Keun Lee, Sang-Sub Han   +3 more
doaj   +1 more source

Deletion of the gene encoding the magnesium chelatase I subunit resulted in a novel wheat leaf colour mutant. [PDF]

Plant Biotechnol J
Summary Leaf colour mutants are ideal germplasm resources for investigating the mechanisms of chlorophyll (Chl) synthesis, chloroplast development and photosynthesis. In this study, we obtained a yellow‐leaf mutant, designated SN288‐2. The variant presented a yellow‐leaf phenotype and halted the development of chloroplasts at the seedling stage, with ...
Qi F, Xing P, Sun Y, Bao Y, Wang H, Li X.   +5 more
europepmc   +2 more sources

Characteristics of a Virescent Cotton Mutant [PDF]

Plant Physiology, 1968
The virescent cotton (Gossypium hirsutum) mutant described here differs from normal cultivated cotton by a single mutation in the nucleus. The mutant exhibits nuclear control of chlorophyll and carotenoid development. Young leaves are distinctly yellow and become green with age.
C R, Benedict, R J, Kohel
openaire   +2 more sources

Molecular identification of ‘Candidatus Phytoplasma palmicola’ associated with coconut lethal yellowing in Equatorial Guinea

Annals of Applied Biology, Volume 183, Issue 3, Page 262-270, November 2023., 2023
A high mortality of coconut palms was observed in the coastal areas of Equatorial Guinea. Molecular analyses on 16S rRNA and secA genes detected ‘Candidatus Phytoplasma palmicola’ subgroup 16SrXXII‐A. Strict monitoring and surveillance procedures for early detection of the pathogen are strongly recommended to reduce its impact and further spread in the
Assunta Bertaccini, Nicoletta Contaldo, Giulia Feduzi, Agustín Mane Ela Andeme, Egya Ndede Yankey, Luciano Rovesti   +5 more
wiley   +1 more source

Characterization of a Virescent Chloroplast Mutant of Tobacco [PDF]

Plant Physiology, 1987
Virescent mutations produce plants in which young leaves have reduced chlorophyll levels but accumulate nearly normal amounts of chlorophyll as they age; they are predominantly nuclear mutations. We describe here a virescent mutation (designated Vir-c) found in a somatic hybrid line derived from Nicotiana tabacum L. and Nicotiana suaveolens Lehm.
E K, Archer, H T, Bonnett
openaire   +2 more sources

Multiple Impacts of Urban Built and Natural Environment on Lung Cancer Incidence: A Case Study in Bengbu

Journal of Healthcare Engineering, Volume 2023, Issue 1, 2023., 2023
Tumours are the main disease affecting the health of the Chinese population, and lung cancer is the malignancy with the highest incidence. Hence, the need to study and analyse the population of lung cancer incidence in order to effectively control and prevent it.
Kangkang Gu, Yuwei Li, Xianjie Jia, Chengrong Liu, Roberto Alonso González-Lezcano   +4 more
wiley   +1 more source

Occurrence and molecular characterization of a 16SrI-R subgroup phytoplasma associated with Aquilegia vulgaris phyllody disease

Journal of Plant Protection Research, 2021
During 2016–2017 surveys, carried out for phytoplasma diseases in ornamental plants in Chaharmahal and Bakhtiari provinces, Iran, found symptoms of virescence, phyllody, reduced size of leaves and flowers in columbine (Aquilegia vulgaris).
Ghobad Babaei, Seyyed Alireza Esmaeilzadeh-Hosseini, Soudeh Davoodi, Assunta Bertaccini   +3 more
doaj   +1 more source

Spatial-Temporal Evolution and Prediction of Carbon Storage in Areas Rich in Ancient Remains: A Case Study of the Zhouyuan Region, China

Land, 2023
In the past few decades, human activities have caused the emission of large amounts of carbon dioxide, which has severely impacted the Earth’s ecosystem and human health. Therefore, carbon reduction has become the focus of global attention. In this study,
Jian Chen, Xiaoxiao Zhang, Kai Wang, Zhenguo Yan, Wei Zhang, Lixin Niu, Yanlong Zhang   +6 more
doaj   +1 more source

Screening potential insect vectors in a museum biorepository reveals undiscovered diversity of plant pathogens in natural areas

Ecology and Evolution, Volume 11, Issue 11, Page 6493-6503, June 2021., 2021
Phytoplasmas are a diverse group of obligate intracellular bacterial parasites, and diseases associated with these bacteria are among the most important problems affecting agriculture worldwide. However, most knowledge of the diversity and ecology of phytoplasmas and their hosts has been accumulated through studies of phytoplasma disease epidemiology ...
Valeria Trivellone, Wei Wei, Luisa Filippin, Christopher H. Dietrich   +3 more
wiley   +1 more source