Results 31 to 40 of about 872 (168)

ALS as Tool to Study Preferred Stem Inclination Directions

open access: yesRemote Sensing, 2020
Although gravitropism forces trees to grow vertically, stems have shown to prefer specific orientations. Apart from wind deforming the tree shape, lateral light can result in prevailing inclination directions.
Sebastian Lamprecht   +2 more
doaj   +1 more source

THE PHOTOTROPIC EXCITATION OF LIMAX [PDF]

open access: yesJournal of General Physiology, 1929
The photic orientation of Limax creeping geotropically upon a vertical plate is such that the phototropic vector determining the angular deflection ß from the vertical path is proportional to log I. This is proved by the fact that with horizontal illumination tan ß is directly proportional to log I; with non-horizontal light rays from a small source ...
W J, Crozier, W H, Cole
openaire   +2 more sources

Guard-Cell-Specific Expression of Phototropin2 C-Terminal Fragment Enhances Leaf Transpiration

open access: yesPlants, 2021
Phototropins (phot1 and phot2) are plant-specific blue light receptors that mediate chloroplast movement, stomatal opening, and phototropism. Phototropin is composed of the N-terminus LOV1 and LOV2 domains and the C-terminus Ser/Thr kinase domain.
Young-Sun Riu   +3 more
doaj   +1 more source

Peg Biology: Deciphering the Molecular Regulations Involved During Peanut Peg Development

open access: yesFrontiers in Plant Science, 2019
Peanut or groundnut is one of the most important legume crops with high protein and oil content. The high nutritional qualities of peanut and its multiple usage have made it an indispensable component of our daily life, in both confectionary and ...
Rakesh Kumar   +5 more
doaj   +1 more source

Role of Leaves in Phototropism [PDF]

open access: yesPlant Physiology, 1966
Experiments with green seedlings of sunflower (Helianthus annuns L.) indicate the existence of a phototropic mechanism which involves the leaves or cotyledons, and which can produce an asymmetry of auxin content without the involvement of lateral auxin transport, the classic explanation of phototropism in etiolated seedlings.
S L, Lam, A C, Leopold
openaire   +2 more sources

Interaction of gravitropism and phototropism in roots of Brassica oleracea [PDF]

open access: yes, 2022
24 p.-9 fig.Gravitropism and phototropism play a primary role in orienting root growth. Tropistic responses of roots mediated by gravity and light have been extensively investigated, and a complex mutual interaction occurs between these two tropisms.
Romano, Leone Ermes   +13 more
core   +1 more source

Subfunctionalization of phytochrome B1/B2 leads to differential auxin and photosynthetic responses

open access: yesPlant Direct, 2020
Gene duplication and polyploidization are genetic mechanisms that instantly add genetic material to an organism's genome. Subsequent modification of the duplicated material leads to the evolution of neofunctionalization (new genetic functions ...
Keisha D. Carlson   +4 more
doaj   +1 more source

The photosensory function of Zmphot1 differs from that of Atphot1 due to the C-terminus of Zmphot1 during phototropic response

open access: yesCrop Journal, 2023
The role of phot1 in triggering hypocotyl phototropism and optimizing growth orientation has been well-characterized in Arabidopsis, whereas the role of Zmphot1 in maize remains largely unclear.
Jindong Zhu   +6 more
doaj   +1 more source

UV-B induced generation of reactive oxygen species promotes formation of BFA-induced compartments in cells of Arabidopsis root apices

open access: yesFrontiers in Plant Science, 2016
UV-B radiation is an important part of the electromagnetic spectrum emitted by the sun. For much of the period of biological evolution organisms have been exposed to UV radiation, and have developed diverse mechanisms to cope with this potential stress ...
Ken eYokawa   +3 more
doaj   +1 more source

Lack of evidence for associative learning in pea plants

open access: yeseLife, 2020
Gagliano et al. (Learning by association in plants, 2016) reported associative learning in pea plants. Associative learning has long been considered a behavior performed only by animals, making this claim particularly newsworthy and interesting.
Kasey Markel
doaj   +1 more source

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