Results 61 to 70 of about 7,641 (199)

Anatomical changes in the stems of highbush blueberry (Vaccinium australe Small), caused by the fungus Godronia cassandrae f. vaccinii (Peck) Groves

open access: yesActa Agrobotanica, 2013
Some histological changes were observed in blueberry stems infected by the fungus G.cassandrae. Dead cells of subepidermal collenchyma and cortical parenchyma filled with brown flocculent deposits were seen in the lesion areas.
Marek Szyndel, Janina Wiśniewska
doaj   +1 more source

AHP6 inhibits cytokinin signaling to regulate the orientation of pericycle cell division during lateral root initiation. [PDF]

open access: yesPLoS ONE, 2013
In Arabidopsis thaliana, lateral roots (LRs) initiate from anticlinal cell divisions of pericycle founder cells. The formation of LR primordia is regulated antagonistically by the phytohormones cytokinin and auxin.
Sofia Moreira   +3 more
doaj   +1 more source

Antibody Catalysis of Pericyclic Reactions. [PDF]

open access: yesActa Chemica Scandinavica, 1996
In an effort to increase our insight into the catalysis of pericyclic reactions we have initiated a detailed study of an antibody that catalyzes an oxy-Cope rearrangement. We have determined the stereochemistry of the antibody-catalyzed reaction, and experiments are in progress to determine the conformation of the substrate bound in the antibody ...
Helle D. Ulrich   +10 more
openaire   +2 more sources

Elimination of FRDL1, a xylem‐located citrate transporter, confers tolerance to excess unchelated ferrous iron through an exclusion mechanism in rice (Oryza sativa L.)

open access: yesPlant Biology, EarlyView.
Knock‐down of a xylem‐localized citrate transporter, FRDL1, reduces foliar iron concentrations and leaf symptoms under excess ferrous iron stress in rice. Abstract Iron (Fe) toxicity is a common agricultural problem that limits rice yield in various regions of Southeast Asia and Africa.
Y. Ueda
wiley   +1 more source

Accumulation of essential oils in relation to root differentiation in Angelica archangelica L.

open access: yesEuropean Journal of Histochemistry, 2009
The accumulation of essential oils in Angelica archangelica subsp. archangelica roots at different developmental stages was investigated through histochemical and chemical analyses.
G Pasqua, B Monacelli, A Silvestrini
doaj   +1 more source

Plant Development: Early Events in Lateral Root Initiation [PDF]

open access: yes, 1978
SummaryHow are the lateral root founder cells specified in the pericycle to initiate lateral root development?
Shri Ram Yadav   +22 more
core   +1 more source

A Potential Role for MYB93 Regulating Sulfur Responses in Arabidopsis and Tomato

open access: yesPlant Direct, Volume 10, Issue 4, April 2026.
ABSTRACT Sulfur (S) is an important nutrient that has wide‐ranging effects on plant health and metabolism. Several classes of transcription factors respond to S deprivation, including R2R3‐MYBs. In Arabidopsis, the AtMYB93 transcription factor‐encoding gene is upregulated by S deprivation.
Xulyu Cao   +9 more
wiley   +1 more source

Plasticity of Lateral Root Branching in Maize

open access: yesFrontiers in Plant Science, 2019
Extensively branched root systems can efficiently capture soil resources by increasing their absorbing surface in soil. Lateral roots are the roots formed from pericycle cells of other roots that can be of any type.
Peng Yu   +2 more
doaj   +1 more source

A Model for the Development of the Rhizobial and Arbuscular Mycorrhizal Symbioses in Legumes and Its Use to Understand the Roles of Ethylene in the Establishment of these two Symbioses [PDF]

open access: yes, 2002
We propose a model depicting the development of nodulation and arbuscular mycorrhizae. Both processes are dissected into many steps, using Pisum sativum L. nodulation mutants as a guideline. For nodulation, we distinguish two main developmental programs,
Albrecht C.   +192 more
core   +2 more sources

Symbiosis‐associated UMAMIT transporters required for establishing efficient nitrogen fixation in Medicago truncatula

open access: yesNew Phytologist, Volume 250, Issue 1, Page 530-546, April 2026.
Summary To address a critical gap in understanding amino acid transport in legume–Rhizobium symbiosis, we investigated the role of symbiosis‐associated USUALLY MULTIPLE ACIDS MOVE IN AND OUT TRANSPORTERS (UMAMITs) in Medicago truncatula nodulation.
Courtney S. Winning   +8 more
wiley   +1 more source

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