Results 61 to 70 of about 4,167 (182)

Microspore embryogenesis in vitro: the role of stresses

Вавиловский журнал генетики и селекции, 2019
Gametic embryogenesis is one form of totipotency of plant cells, in which either male or female gametes are induced to form embryoids (sporophytes). Regeneration of haploid plants from embryoids and subsequent chromosome duplication result in doubled ...
T. I. Djatchouk, O. V. Khomyakova, V. N. Akinina, I. A. Kibkalo, A. V. Pominov   +4 more
doaj   +1 more source

Genomics is modifying our concepts of evolution in homosporous and heterosporous vascular plants

American Journal of Botany, Volume 113, Issue 8, August 2026.
Abstract Across the tree of life, and particularly within land plants, there is a wide diversity and disparity of genome structure. The most well‐studied are angiosperms, comprising mostly small and dynamic genomes, with a history of ancient whole genome duplications.
Sylvia P. Kinosian
wiley   +1 more source

The metabolic incorporation of label from myoinositol-2-3H by the growing young anther of Lilium lorlgiflorum

Acta Societatis Botanicorum Poloniae, 2014
Fine structural autoradiography involving the incorporation of myo-inositol-2-3H (MI-2-3H) unto lily anther during development has been used to explore the metabolic processes of microspore development and the interation between the devlaping microspore ...
H. Miki-Hirosige, S. Nakamura
doaj   +1 more source

Birch Rust Spore Exposure and Upper Airway Symptom Dynamics in a Subarctic Region: Indications for a Novel Seasonal Allergen

Clinical and Translational Allergy, Volume 16, Issue 8, August 2026.
ABSTRACT Background Airway allergies affect 20%–30% of the global population, with pollen and fungal spores representing major environmental triggers. Although fungal spores are far more abundant than pollen, their allergenic role—particularly from phytopathogenic rust fungi such as birch rust (BR)—remains poorly understood.
Randi Falnes Olsen, Kristian Svendsen, Thorsten Graf, Annette Kuehn, Viera Stubnova, Martin Sørensen   +5 more
wiley   +1 more source

Step by step: Floral structure and developmental changes to the formation of the gynostegium in Apocynaceae s.l.

Plant Biology, Volume 28, Issue 5, Page 1467-1480, August 2026.
Developmental changes in Apocynaceae s.l. reveal progressive reductions in the corolla tube and epipetaly, together with increased staminal tube formation, highlighting shifts in floral integration associated with gynostegium evolution and organization.
D. M. Alves, L. S. Souto, J. L. S. Mayer, I. Koch   +3 more
wiley   +1 more source

Microspore developmental evaluation at the booting stage and androgenic callus induction in sorghum [Sorghum bicolor (L.) Moench] via anther culture

Notulae Botanicae Horti Agrobotanici Cluj-Napoca
Androgenesis is a key method for producing doubled haploid (DH) lines, typically achieved through in vitro techniques such as anther culture and isolated microspore culture.
Bambang S. PURWOKO, Arum W. NINGSIH, Iswari S. DEWI, Trikoesoemaningtyas TRIKOESOEMANINGTYAS   +3 more
doaj   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

Advanced Science, Volume 13, Issue 38, 9 July 2026.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao, Shenghui Huo, Yue Xing, Shuxin Zhang, Guilin Li, Yihui Liu, Chongyang Jin, Fuguang Li, Xiaoyang Ge   +8 more
wiley   +1 more source

Generic Workflow of a Highly Effective and Easy Anther Culture Method for Both Japonica and Indica Rice

Plants
As one of the most important staple crops in the world, rice plays a pivotal role in world food security. The creation of doubled haploids based on anther culture is an important technology for rice breeding.
Guimei Guo, Shisen Liu, Shuwei Zhang, Linian Yang, Yingjie Zong, Nigel G. Halford, Ting He, Runhong Gao, Zhenzhu Guo, Longhua Zhou, Chenghong Liu, Shujun Wu, Zhiwei Chen   +12 more
doaj   +1 more source

A new microspore embryogenesis system under low temperature which mimics zygotic embryogenesis initials, expresses auxin and efficiently regenerates doubled-haploid plants in Brassica napus

BMC Plant Biology, 2012
Background Microspore embryogenesis represents a unique system of single cell reprogramming in plants wherein a highly specialized cell, the microspore, by specific stress treatment, switches its fate towards an embryogenesis pathway.
Prem Deepak, Solís María-Teresa, Bárány Ivett, Rodríguez-Sanz Héctor, Risueño María C, Testillano Pilar S   +5 more
doaj   +1 more source

High Frequency Production of Doubled Haploid Rapeseed Plants by Direct Colchicine Treatment of Isolated Microspores

浙江大学学报. 农业与生命科学版, 2000
Techniques for microspore culture of Brassica napus have been improved rapidly, and embryogen-esis has been achieved in a wide range of genotypes. Plants regenerated from microspore-derived embryoids can be haploid, diploid or polyploid.
ZHOU Wei-jun, HAGBERG Per
doaj   +1 more source