Broomrape, caused by the root holoparasite Orobanche cumana, is the main biotic constraint to sunflower oil production worldwide. By the time broomrape emerges, most of the metabolic imbalance has been produced by O. cumana to sunflower plants. UV-induced multicolor fluorescence imaging (MCFI) provides information on the fluorescence emitted by chlorophyll (Chl) a of plants in the spectral band...

Stem cells interact with their niche to maintain an undifferentiated state. The study by Pardo-Saganta et al. shows that airway basal stem cells maintain secretory daughter cells in airway epithelia through forward regulation, suggesting that stem cells may serve as a niche for their progeny.

Let I be a homogeneous Artinian ideal in a polynomial ring R = k[x1, . . . , xn] over a field k of characteristic 0. We study an equivalent condition for the generic initial ideal gin(I) with respect to reverse lexicographic order to be almost reverse lexicographic. As a result, we show that Moreno-Socias conjecture implies Fröberg conjecture. And for the case codimI ≤ 3, we show that R/I has t...

BACKGROUND AND AIMS Orobanche minor is a root-holoparasitic angiosperm that attacks a wide range of host species, including a number of commonly cultivated crops. The extent to which genetic divergence among natural populations of O. minor is influenced by host specificity has not been determined previously. Here, the host specificity of natural populations of O. minor is quantified for the fir...

The photosynthetic gene rbcL has been lost or dramatically altered in some lineages of nonphotosynthetic parasitic plants, but the dynamics of these events following loss of photosynthesis and whether rbcL has sustained functionally significant changes in photosynthetic parasitic plants are unknown. To assess the changes to rbcL associated with the loss of functional constraints for photosynthe...

False broomrape on tobacco (Nicotiana tabacum) can be induced by applying cytokinins to the roots, by causing an increase in the cytokinin-auxin ratio in the roots, by removing the apical and auxillary buds, or by applying extracts from tobacco with false broomrape to the roots of healthy plants. It can be prevented by treating debudded plants with auxin.

A közlemény az Orobanche reticulata néhány új magyarországi adatáról számol be. fajt a szakirodalomban ismeretlen gazdanövényről, Carduus hamulosus-ról gyűjtöttük Keleti-Bakonyban, Bér-hegyen. Magyarországon általában májustól júliusig virágzó faj életmenetéhez érdekes adalék egy extrém csapadékos év (2010) enyhe őszén megfigyelt késői, októberi virágzása is. Egy másik populáció (Vértes hegység...