Results 91 to 100 of about 264,480 (248)

Toward in vitro fertilization in Brachiaria spp. [PDF]

open access: yes, 2010
Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Alves, E.R.   +5 more
core   +2 more sources

Decoding plant defense signaling using the defenseless mutant

open access: yesNew Phytologist, EarlyView.
Summary Can plants live without defenses? Mutant analysis in Arabidopsis thaliana has identified numerous regulators of biotic, abiotic, and hormone‐based defenses, but the redundancy among separate defense pathways remains unexplored. We constructed an Arabidopsis mutant, defenseless, lacking six canonical defense pathways using abi1‐1 (abscisic acid),
Bikash Baral, Mikael Brosché
wiley   +1 more source

ZmCals12 impacts maize growth and development by regulating symplastic transport

open access: yesJournal of Integrative Agriculture
Carbohydrate partitioning from source to sink tissues is essential for plant growth and development. However, in maize (Zea mays L.), the molecular mechanisms by which callose synthase genes regulate this process remain largely unexplored.
Shi Ziwen   +8 more
doaj   +1 more source

Two salivary proteins Sm10 and SmC002 from grain aphid Sitobion miscanthi modulate wheat defense and enhance aphid performance

open access: yesFrontiers in Plant Science, 2023
The grain aphid Sitobion miscanthi is a serious pest of wheat that causes severe economic damage by sucking phloem sap and transmitting plant viruses. Here, two putative salivary effector homologs from S.
Yu Fu   +7 more
doaj   +1 more source

Interplay between JA, SA and ABA isgnalling during basal and induced resistance against pseudomonas syringae and Alternaria brasicicola [PDF]

open access: yes, 2008
We have examined the role of the callose synthase PMR4 in basal resistance and β‐aminobutyric acid‐induced resistance (BABA‐IR) of Arabidopsis thaliana against the hemi‐biotrophic pathogen Pseudomonas syringae and the necrotrophic pathogen Alternaria ...
Flors, Victor   +5 more
core   +1 more source

TaRIP2 Positively Regulates Wheat Pollen Wall Formation Through MYB80‐Controlled Lipid Metabolism

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Male‐sterile genes and mutants are critical for hybrid seed production in monocotyledonous crops. Lipids are essential structural components of male reproductive organs, such as the anther and pollen. Here, we show that the pollen‐preferential gene TaRIP2 is essential for wheat anther development and pollen formation. RT‐qPCR analysis revealed
Ran Han   +14 more
wiley   +1 more source

Non-separated microspores 1 controls male meiotic callose deposition at the cell plate in rice

open access: yesCrop Journal
In flowering plants, callose (β-1,3-glucan) plays a vital role in pollen development, especially in the separation and development of microspores. However, the molecular mechanism of callose deposition during rice pollen development remains unclear.
Haiyuan Chen   +6 more
doaj   +1 more source

WRKY Transcription Factors: Integral Regulators of Defence Responses to Biotic Stress in Crops

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Crops are continually challenged by biotic stresses, including fungal, bacterial and viral pathogens and insect pests, which cause substantial yield and quality losses worldwide. WRKY transcription factors constitute a plant‐specific and functionally diverse family that is central to immune regulation.
Dongjiao Wang   +8 more
wiley   +1 more source

Callose synthase (CalS5) is required for exine formation during microgametogenesis and for pollen viability in Arabidopsis [PDF]

open access: yesThe Plant Journal, 2005
SummaryCallose (β‐1,3‐glucan) is produced at different locations in response to biotic and abiotic cues. Arabidopsis contains 12 genes encoding callose synthase (CalS). We demonstrate that one of these genes, CalS5, encodes a callose synthase which is responsible for the synthesis of callose deposited at the primary cell wall of meiocytes, tetrads and ...
Xiaoyun, Dong   +4 more
openaire   +2 more sources

Mechanisms of resistance to powdery mildew in cucumber

open access: yesPhytopathologia Mediterranea, 2022
Podosphaera xanthii causes powdery mildew of cucumber, and is associated with significant yield and quality losses. Development of resistant or tolerant varieties is the most effective and eco-friendly strategy for powdery mildew management. An important
Mumin Ibrahim TEK, Ozer CALIS
doaj   +1 more source

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